CN107663589A

CN107663589A - A kind of method by the nickeliferous mixing slag recovery valuable component with iron

Info

Publication number: CN107663589A
Application number: CN201710935500.8A
Authority: CN
Inventors: 张力; 张武
Original assignee: Northeastern University China
Current assignee: Northeastern University China
Priority date: 2017-10-10
Filing date: 2017-10-10
Publication date: 2018-02-06
Also published as: WO2019071796A1

Abstract

The present invention relates to a kind of method by the nickeliferous mixing slag recovery valuable component with iron, it includes S1, clinker mixing：Nickel fibers slag is added in melting reaction device, the one or more added in lead metallurgical slag, blast furnace slag, slag and ferroalloy slag, form mixing slag；Slag is heated to molten condition as reaction slag, well mixed, the slag of monitoring reaction in real time, while makes the mixed nickeliferous and slag of iron by regulation and control while meets condition a and condition b, obtains reacted slag；S2, separation and recovery.The present invention realizes the mixing slag efficient process of nickeliferous slag and iron content, solves current clinker bulk deposition, problem of environmental pollution, and heavy metal contamination problem, realizes the recovery of heavy metal components.

Description

A kind of method by the nickeliferous mixing slag recovery valuable component with iron

Technical field

The invention belongs to slag metallurgical technology field, and in particular to a kind of to reclaim valuable group with the mixing slag of iron by nickeliferous The method divided.

Background technology

During the pyrometallurgical smelting of nickel, a large amount of nickel fibers slags are produced, nickel fibers cinder ladle is included caused by " matte smelting " technique Nickel sedimentation clinker caused by dilution clinker, top blow smelting after Ni-B alloy slag, the blowing of " nickel convering of copper ice " technique.China Jinchuan is public Department carries out nickel ore concentrate smelting using " flash smelting " and " top blow smelting ", produces 1,000,000 tons of nickel fibers slags every year, adds up heap at present Storage is stored up more than 10,000,000 tons.The valuable component such as copper, iron, nickel, cobalt, zinc, lead, gold, silver in nickel fibers slag, it is long-term to stack, both Waste of resource, environment is polluted again.

Iron content is up to 50wt% in nickel fibers slag, 26wt% payable grades before remote superorder, Copper in Slag be up to 0.2wt% with On, wherein iron component mainly mutually exists with fayalite.At present, the research and utilization of nickel fibers slag mainly concentrates direct-reduction to carry iron Or deoxy iron-smelting.In reduction process, copper, nickel, the reduction of cobalt component enter molten iron, are unfavorable for follow-up steelmaking process.

The pyrometallurgical smelting process " sintering-blast furnace reduction-fuming furnace " of lead or " oxidation blowing-high lead dross reduction-fuming In the techniques such as stove ", lead metallurgical slag is produced.Lead metallurgical slag includes leaded smelting slag and fuming slag." sintering deposit blast furnace reduction " Or " solid-state high lead dross reduction " or " liquid high lead dross reduction technique " reducing process produces leaded smelting slag, leaded smelting slag passes through Fuming furnace, which is smelted, produces fuming slag, and lead metallurgical slag (fuming furnace clinker and leaded smelting slag) contains copper, gold, silver, iron, zinc, lead It is important secondary resource etc. component.Lead metallurgical slag (leaded smelting slag or fuming furnace clinker) temperature at >=1050 DEG C, smelt by lead Slag is important physics thermal resource, but also it can effectively can be utilized without a kind of rational technique.

Blast furnace slag, slag and ferro-alloy cinder contain the metallic iron of high level, ferriferous oxide, chromated oxide, five oxidations Two phosphorus, SiO₂, the valuable component such as CaO, MgO be important secondary resource；Melting is given off by blast furnace, converter and ferro-alloy furnace Slag temperature >=1300 DEG C, therefore, molten blast furnace slag, molten steel slag are also that important physical thermal provides with melting ferro-alloy cinder Source.It but no reasonable process is utilized, can only largely stack, cause the waste of resource and the pollution of environment.

Contain a large amount of SiO in nickel fibers slag, lead metallurgical slag, blast furnace slag, slag, ferro-alloy cinder₂、CaO、MgO、Al₂O₃Deng Flux for metallurgy, chemical reactivity is strong, is the slag system of excellent in physical and chemical performance, is metallurgical clinker.Flowed out by metallurgical furnace Melting nickel fibers slag, fusion of lead metallurgical slag, molten blast furnace slag, molten steel slag with melting ferro-alloy cinder, contain abundant heat energy Resource, containing a large amount of hot flux for metallurgy.How it is extensive handle simultaneously fusion of lead metallurgical slag, molten blast furnace slag, molten steel slag with Ferro-alloy cinder is melted, and nickel fibers slag solves problem of environmental pollution and realizes the separated in synchronization production of copper, iron, there is presently no A kind of technique can reach simultaneously.

The content of the invention

(1) technical problems to be solved

In order to solve the above mentioned problem of prior art, the present invention provides the nickeliferous mixing slag recovery valuable component with iron Method.This method reaction time is short, technological process is short, metal recovery rate is high, production cost is low, treating capacity is big, environment-friendly, warp Ji income is high, can effectively solve Metallurgical resources and heat energy high efficiente callback Utilizing question；The present invention is a kind of new slag metallurgy work Skill, not only reduce Copper in Slag (Copper in Slag<0.1wt%), copper, nickel, cobalt, gold, silver, iron, zinc, lead, indium, bismuth, sodium, potassium are realized and The high efficiente callback of component and the processing of copper-contained material, obtain low copper ferrous material (iron ore concentrate and the pig iron).

(2) technical scheme

In order to achieve the above object, the main technical schemes that the present invention uses include：

A kind of method by the nickeliferous mixing slag recovery valuable component with iron, it comprises the following steps：

S1, clinker mixing：Nickel fibers slag is added in melting reaction device, while adds lead metallurgical slag, blast furnace slag, slag With the one or more in ferroalloy slag, mixing slag is formed；Mixing slag is heated to molten condition as reaction slag, mixed Conjunction is uniform, the slag of monitoring reaction in real time, by regulating and controlling to make mixed reaction slag while meeting condition a and condition b, obtains anti- Slag after answering；

Wherein, the condition a be control reaction slag temperature be 1050~1500 DEG C；

The condition b is the basicity CaO/SiO of control reaction slag₂Ratio=0.15~1.5；

S2, separation and recovery：The reacted slags of step S1, are incubated 5~50min, and sedimentation separation obtains the richness of bottom Ambrose alloy, the Fe-riched phase of middle and lower part and the Iron containing silicate minerals phase of middle and upper part, while generate the cigarette of component containing zinc and leaded component Ash, golden component, silver components enter copper-rich nickel phase, and nickeliferous component, cobalt containing component respectively enter copper-rich nickel phase and Fe-riched phase；To each phase Recycled.

Method as described above, it is preferable that in the step S1, the method for condition a regulation and control is：

As 1050 DEG C of the temperature ＜ of the reaction slag, using the heating function of reaction unit itself, or into slag Add fuel or melt nickel fibers slags, fusion of lead metallurgical slag, molten blast furnace slag, molten steel slag or melt ferroalloy slag one kind or It is a variety of, when spraying into fuel, while oxidizing gas is sprayed into, the temperature of reaction slag is reached 1050~1500 DEG C；

As 1500 DEG C of the temperature ＞ of the reaction slag, added into the reaction slag nickel fibers slag, copper-contained material, One or more in blast furnace slag, slag, ferroalloy slag, flux for metallurgy, ferrous material or fluorine-containing material are well mixed, and make mixing The temperature of reaction slag reach 1050~1500 DEG C；

It is for the condition b methods regulated and controled：

As basicity CaO/SiO in the reaction slag₂Ratio<When 0.15, to reaction slag in add alkaline material and/or Alkaline ferrous material；

As basicity CaO/SiO in the reaction slag₂Ratio>When 1.5, to reaction slag in add acid material and/or Iron-containing acidic material.

Method as described above, it is preferable that in the step S1, while meeting the condition a and b, should expire simultaneously Foot, Cu oxide, nickel oxide, cobalt/cobalt oxide and ferriferous oxide in the reaction slag is controlled to be reduced to metallic copper, gold respectively Belong to nickel, metallic cobalt and FeO, metal Ferrum content in slag<3%.Can be by adding one kind in reducing agent, carbon containing ferrous material Or two kinds regulated and controled, wherein, the dosage of the reducing agent is Cu oxide, nickel oxide, cobalt/cobalt oxide and iron oxygen in slag Compound is reduced to metallic copper, metallic nickel, metallic cobalt and FeO theoretical amount 110~140%；The carbon containing ferrous material is steel Iron dirt mud and cigarette ash, the carbon containing pre-reduced pellet of iron ore concentrate, iron ore concentrate carbonaceous metallized pellet, zinc hydrometallurgy volatilization kiln slag, coke Furnace dust mud and cigarette ash.

Method as described above, it is preferable that the melting reaction device is for rotatable melting reaction device or with slag The melting reaction device of mouth or iron mouth.

Method as described above, it is preferable that the nickel fibers slag is Ni-B alloy slag, copper ice caused by " matte smelting " technique The blowing slag after blowing slag, the blowing of " nickel convering of copper ice " technique after the blowing of nickel convering " technique through dilution clinker caused by dilution, Ni-B alloy slag caused by top blow smelting, Ni-B alloy slag caused by top blow smelting are one or more in slag through being settled caused by sedimentation； The nickel fibers slag is molten state or cold conditions, wherein, melting nickel fibers slag is obtained by nickel fibers stove slag notch, or by nickel fibers slag It is heated to molten condition；

The blast furnace slag, slag and ferroalloy slag are molten state, or cold conditions, wherein：Molten state clinker (blast furnace slag, slag With ferroalloy slag) obtained by slag notch, or cold conditions clinker (blast furnace slag, slag and ferroalloy slag) is heated to molten condition；Institute Slag is stated as molten iron pre-desulfurization slag (desulfurization slag, desiliconization slag, dephosphorized slag), vessel slag, electroslag, VOD/VAD slags, VD slags, centre Bag waste；The ferro-alloy cinder be ferroalloy production process in caused clinker, including smelt carbon ferromanganese caused by clinker, Smelt clinker caused by ferrochrome, clinker caused by smelting ferronickel, clinker caused by smelting ferrovanadium, clinker caused by smelting duriron, Smelt clinker caused by ferro-niobium, clinker caused by Smelting Ferromolybdenum.

Method as described above, it is preferable that the copper-contained material is blister copper copper fire refining slag, nominal group process, copper ashes, zinc Metallurgical slag, zinc abstraction cigarette ash and dirt mud, plumbum smelting slag, Pb-Zn tailings, lead copper matte, setting form, fire refining of crude lead slag, lead smelting Refine flue dust and cigarette ash, lead-acid battery, Copper making cigarette ash and dirt mud, composition brass, cupric rubbish, containing copper circuit board, tin metallurgical slag, tin tail One or more in ore deposit；Wherein, the zinc smelting dreg is zinc hydrometallurgy and zinc smelting dreg caused by pyrometallurgy of zinc, including is leached Slag, iron vitriol slag, copper-cadmium slag, goethite slag, bloodstone slag, volatilization kiln slag, zinc vertical retorting slag, blast furnace slag, vortex clinker, fuming Clinker, electric furnace zinc smelting slag；Lead metallurgical slag is fuming furnace clinker and leaded smelting slag, " reduction of ISP imperial smelting furnaces " or " sintering deposit Blast furnace reduction " or " solid-state high lead dross reduction " or " liquid high lead dross reduction technique " reducing process produce leaded smelting slag, contain Lead smelting slag is smelted by fuming furnace produces leaded fuming slag；The copper ashes is that cupric smelting slag, slag containing copper converting, dilution are abandoned One or more in slag, flotation tailings, wet type copper smelting slag, what cupric smelting slag resulted from the pyrometallurgical smelting process of copper " makes sulfonium Melting " process；The slag containing copper converting results from " Copper Matte Converting " process of the pyrometallurgical smelting process of copper；Dilution waste is cupric Smelting slag and waste after the dilution of slag containing copper converting, flotation tailings are cupric smelting slag and tailings after the ore dressing of slag containing copper converting.Wherein, Copper-contained material and ferrous material are hot or cold conditions, wherein hot material is directly obtained by metallurgical furnace discharging opening or slag notch.

Method as described above, it is preferable that the fuel and reducing agent be one kind in solid, liquid or gaseous fuel or It is a variety of, sprayed into, be loaded into 0-1200 DEG C of gas, the gas is oxidizing gas in a manner of being blown or feeding intake；

The alkaline material is pulverized limestone, red mud, after removing sodium in high calcium red mud, carbide slag, dolomite dust or calcium lime powder One or more；Described alkaline ferrous material is alkaline sintering deposit, alkaline iron ore concentrate, alkaline pre-reduced pellet, alkalescence gold Belong to the one or more in pellet or slag.

Method as described above, it is preferable that the acid material is in silica, silica containing gold and silver, flyash, gangue It is one or more；Described iron-containing acidic material is CaO/SiO₂≤ 1 ferrous material, acid sinter ore, acid iron ore concentrate, acid In property pre-reduced pellet, acid metal pellet, copper ashes, lead metallurgical slag, zinc smelting dreg, nickel fibers slag, ferroalloy slag, blast furnace slag One or more.

Method as described above, it is preferable that the ferrous material is common iron ore concentrate, common iron ore concentrate DRI, Common iron ore concentrate sintered ore deposit, common Iron Ore Pellets, common iron ore concentrate metallized pellet, the carbon containing prereduction ball of common iron ore concentrate Group, slag, zinc smelting dreg, coke smelting smoke dust and dirt mud, steel flue dust and dirt mud, nickeliferous metallurgical slag, copper ashes, lead metallurgical slag, One or more after copper ashes, tin metallurgical slag, red mud, removing sodium in high calcium red mud, coal dust ash, pyrite cinder；The steel flue dust With dirt mud drum include blast furnace gas mud, bof sludge, electric furnace dust mud, heat (cold) roll sludge, sintering dust, pelletizing dust, go out ironworks Dust, blast furnace dust, electric stove dust ash, steel rolling iron scale；Described fluorine-containing material is fluorite, CaF₂Or fluorine-containing blast furnace slag In one or more；Zinc Hydrometallurgy Residue is needed to be dehydrated with dirt mud, dried.

Further, the solid fuel and reducing agent are one kind in coal dust, coke powder, flyash, bituminous coal or anthracite Or it is a variety of, granular or powdery is shaped as, granular material granularity is 5~25mm, and granular material granularity is≤150 μm；The liquid Fuel is heavy oil with reducing agent, and the gaseous fuel and reducing agent are coal gas and/or natural gas.

Preferably, in the step S1, described to be well mixed to mix or being stirred naturally, agitating mode is argon gas Stirring, nitrogen gas stirring, nitrogen-argon gas mixing gas agitating, reducibility gas stirring, oxidizing gas stirring, electromagnetic agitation or machine One or more in tool stirring.

Method as described above, it is preferable that in being separated and recovered in the step S2, to the copper-rich nickel phase, Fe-riched phase Can be mutually respectively processed with Iron containing silicate minerals, or two-phase will be appointed to combine processing, the migration of golden component and silver components, be enriched with into Enter copper-rich nickel phase, component containing zinc and leaded component volatilization, in the form of an oxide into fume recovery.

Specifically, the separation and recovery in the step S2, with the following method any one of one to method five processing：

Method one, when can flow out melting reaction device using slag, walked as follows after the slag separation after the completion of reaction Suddenly：

S2-1-01, the Iron containing silicate minerals phase, carry out any of following method A-G processing；

Method A：Cement raw material is directly used as after water quenching or air cooling；

Method B：The part or all of molten state Iron containing silicate minerals are mutually returned in the reaction slag of cupric and iron；

Method C：The Iron containing silicate minerals are mutually used to pour devitrified glass or as mineral wool；

Method D：Air cooling or water quenching after the Iron-containing silicate slag oxidation, method include：Into melting reaction device In Iron-containing silicate slag, it is blown into temperature and is 0~1200 DEG C of preheating oxidizing gas, and ensure silicate slag temperature> 1450℃；When slag ferrous oxide weight percent content<1%, the slag after being aoxidized；Slag after the oxidation is direct Air cooling or water quenching, as the additive or clinker in slag cements, cement regulator, manufacture of cement；

Further, when Iron-containing silicate slag temperature<1450 DEG C, pre-heating fuel and the oxidizing gas of preheating are sprayed into, Combustion heat release, additional heat, or device conducting self-heating, make silicate slag temperature>1450℃；

Method E：The Iron containing silicate minerals are mutually used for the clinker for producing high added value, comprise the following steps：

E-1, into the slag of Iron containing silicate minerals phase, add molten steel slag, lime, lime stone, ferro-alloy cinder, powder One or more after coal ash, basic iron lean ore, bauxite, molten blast furnace slag, red mud, removing sodium in red mud or carbide slag, fully Mixing, obtain slag mixed material；

Preheating temperature is blown into E-2, upward slag mixed material and is 0~1200 DEG C of oxidizing gas, and ensures slag Mixed material temperature>1450℃；When ferrous oxide weight percent content<1%, the slag after being aoxidized；

Slag after E-3, the oxidation, air cooling or water quenching are carried out, the clinker of high added value is made；

Method F：The slag of the Iron-containing silicate is as blast furnace ironmaking raw material or direct reduction iron making raw material：By iron content silicon After hydrochlorate slag air cooling, water quenching or slow cooling, as blast furnace ironmaking or direct reduction iron making raw material, after direct-reduction, using magnetic separation Separation or molten point of electric furnace, magnetic separation product are metallic iron and mine tailing, and molten point of electric furnace, product is molten iron and slag；

Method G：The Iron-containing silicate carries out reduction iron production, comprises the following steps：

G-1, ferrous material, reducing agent are added into molten state Iron-containing silicate slag, carry out melting and reducing, in real time monitoring Slag is reacted, meets condition simultaneously by regulation and control：The temperature for reacting slag is 1350~1640 DEG C and the basicity of reaction slag CaO/SiO₂Ratio=0.6~2.4, the slag after the completion of being reacted；

Wherein, the method for temperature for controlling reaction slag is：

When reaction slag 1350 DEG C of temperature ＜, by the heating of reaction unit itself, or into slag add fuel with The oxidizing gas of preheating, the temperature of reaction slag is set to reach 1350~1640 DEG C；

As 1640 DEG C of the temperature ＞ of reaction slag, flux for metallurgy, ferrous material or fluorine-containing material are added into reaction slag In one or more, the temperature of reaction slag is reached 1350~1640 DEG C, wherein, described flux for metallurgy be containing CaO or SiO₂Mineral, high calcium red mud, carbide slag, dolomite or lime specially after quartz sand, quartz sand containing gold and silver, red mud, removing sodium One or more in stone；

The method of basicity for controlling reaction slag is：

When reacting basicity CaO/SiO in slag₂Ratio<When 0.6, alkaline material and/or alkaline iron content are added into slag Material；

When reacting basicity CaO/SiO in slag₂Ratio>When 2.4, acid material and/or iron-containing acidic are added into slag Material；

The oxidizing gas into slag after 0~1200 DEG C of preheating of injection is also needed to enter in G-2, the G-1 during melting and reducing Row melting and reducing, the slag formed after reduction；

G-3, separation and recovery：Using one kind in following methods：

Method I：Mixing slag after reduction is poured into insulation slag ladle, is slowly cooled to room temperature, obtains slow cooling slag；Wherein, Metallic iron is deposited to the bottom of reaction unit, forms iron and sticks together, by containing metal iron layer in remaining slow cooling slag, be crushed to granularity 20~ 400 μm, residual metallic iron and mine tailing are isolated in ore grinding, magnetic separation；

Method II：Mixing slag after reduction, cooling-sedimentation, slag-gold separation, obtain molten iron and the slag after reduction；Institute The slag after reduction is stated, slag treatment is carried out according to one or more of methods in method A~E；The molten iron, be sent to converter or Electric furnace steel making；

S2-1-02, the copper-rich nickel phase, it is sent to converter or converting furnace or the raw material as the separation of copper cobalt nickel；

S2-1-03, the part component containing zinc and leaded component volatilization, in the form of an oxide into fume recovery；

S2-1-04, partly contain golden component with entering copper-rich nickel phase containing silver components, nickel, cobalt component respectively enter copper-rich nickel phase With Fe-riched phase；

It is former as blast furnace ironmaking after S2-1-05, the Fe-riched phase layer carry out water quenching or air cooling or pour into attemperator slow cooling Material or direct reduction iron making raw material or iron making by smelting reduction iron material or flotation carry copper raw material；In floatation process, float product is copper Concentrate, nickel ore concentrate, nickel-containing alloys and iron ore concentrate, iron ore concentrate are gone back as blast furnace ironmaking raw material or direct reduction iron making raw material or melting Former iron-smelting raw material；The Direct Reduction is using rotary hearth furnace, tunnel cave, underbody road, shaft furnace, rotary kiln or induction furnace as also Original equipment, using gas base or coal base reduction technology, gas-based reduction uses natural gas and/or coal gas, coal base reduction using anthracite, One or more in bituminous coal, lignite, coking coal, coke powder or coke, it is 900~1400 DEG C to control reduction temperature, controls basicity CaO/SiO₂Ratio=0.8~1.5；Coal gas caused by reduction is in slag surface second-time burning, there is provided heat, and by stove The coal gas of outflow can be as drying furnace charge and the thermal source of attemperator；

In addition, because containing potassium, sodium in red mud, dirt mud is with silver-colored containing lead, zinc, bismuth, indium in steel cigarette ash, so adding these During raw material, part indium component, bismuth component, component containing potassium, component volatilization containing sodium, in the form of an oxide into flue dust.

When method two, the melting reaction device that can be flowed out using slag, Fe-riched phase and the Iron-containing silicate ore deposit of acquisition One or more are handled thing phase processor method in one step process A~G described in method one, or after pouring into attemperator slow cooling Copper-rich nickel phase, be sent to converter or converting furnace or as copper cobalt nickel separation raw material.

Method three, using the rotatable converter of slag with reaction slag ladle when, obtain molten state described in Iron containing silicate minerals Phase, one or more are handled processing method in one step process A~G described in method one；Or used containing the Fe-riched phase Step S2-1-05 processing in method one；The molten state or the copper-rich nickel phase poured into after attemperator slow cooling, are sent to converter Or converting furnace or the raw material as the separation of copper cobalt nickel.

Method four, using the rotatable converter of slag with reaction slag ladle when, the molten state Iron containing silicate minerals phase of acquisition With Fe-riched phase, one or more are handled processing method in one step process A~G described in method one；The molten state richness nickel Copper phase or after pouring into attemperator slow cooling, is sent to converter or converting furnace or the raw material as the separation of copper cobalt nickel.

Method five：During using attemperator, or the melting reaction device that can be flowed out using slag, slag is poured into insulation dress When putting, following steps are carried out：

S201, sedimentation cooling：Slag is cooled to room temperature, obtains slow cooling slag；The copper-rich nickel is mutually deposited to reaction unit Bottom, form copper-rich nickel and stick together；The Iron containing silicate minerals mutually float；Centre is that slow cooling slag is Fe-riched phase, while generation contains zinc Component and leaded component；Wherein, nickel, cobalt, gold, silver component move to copper-rich nickel phase, wherein, gold, silver component moves to copper-rich nickel Phase, nickel, cobalt component move to copper-rich nickel phase and Fe-riched phase respectively；

S202, separation：The copper-rich nickel that artificial taking-up is deposited in bottom sticks together, and is sent to converter or converting furnace or as copper cobalt nickel point From raw material；The Fe-riched phase uses the S2-1-05 processing of method one；

S203, the artificial Iron containing silicate minerals phase for taking out top, silicate phase is obtained as blast furnace ironmaking raw material or straight Connect reduction iron production raw material or iron making by smelting reduction iron material or cement raw material；

S204, part zinc component and lead component volatilization, in the form of an oxide into fume recovery；

S205, added with red mud or when dirt mud and these raw materials of steel cigarette ash, part indium component, bismuth component, group containing potassium Divide, component volatilization containing sodium, into fume recovery.Method as described above, it is preferable that the oxidizing gas for preheating air, One kind in oxygen, oxygen-enriched air, nitrogen-air, argon gas-air, oxygen-nitrogen, oxygen-argon gas；

The reducing agent and the one or more that fuel is in solid, liquid or gaseous fuel, with the side for being blown or feeding intake Formula sprays into, and the injection is loaded into gas as the one or more in the oxidizing gas, nitrogen or argon gas of preheating, the preheating Temperature is 0~1200 DEG C；The solid fuel and reducing agent be one kind in coal dust, coke powder, flyash, bituminous coal or anthracite or It is a variety of, granular or powdery is shaped as, granular material granularity is 5~25mm, and granular material granularity is≤150 μm, the liquid combustion Material is heavy oil with reducing agent, and gaseous fuel and reducing agent are coal gas and/or natural gas.

Method as described above, it is preferable that in the step S1, described be well mixed is to mix naturally with being stirred, Agitating mode is argon gas stirring, nitrogen gas stirring, nitrogen-argon gas mixing gas agitating, reducibility gas stir, oxidizing gas stirs Mix, the one or more in electromagnetic agitation or mechanical agitation；It is described to be settled into natural subsidence or rotation is heavy in the step S2 Drop or centrifugal sedimentation；Type of cooling when carrying out cooling-sedimentation is natural cooling or rotation cooling or centrifugation cooling, the separation When, with gravity separation method be separation by shaking table, sluicing or the two be combined.

The method for mixing slag production, compared with prior art, it is characteristic of the invention that：

(1) method by the nickeliferous mixing slag production with iron of the invention, can both handle hot molten slag, make full use of Melt nickel fibers slag and one in fusion metallurgy slag (fusion of lead metallurgical slag, molten blast furnace slag, molten steel slag, melting ferroalloy slag) Kind or it is several) physics thermal resource and hot flux for metallurgy, cold conditions clinker can be handled again, mixed by slag mixing or cold conditions, It is metallurgical modified to realize slag；

(2) the slag metallurgical reaction in slag is mixed, fayalite disintegrates, and ferriferous oxide fully discharges, and realizes length Greatly with sedimentation, the aggregation of the metallic iron component in slag is mixed, grows up and settles, Fe-riched phase includes metallic iron, FeO phases, iron olive It is a variety of in stone phase, as blast furnace ironmaking or direct-reduction or the raw material of fused reduction iron-smelting；

(3) copper component, nickel cobalt component, gold, silver component in slag are mixed and is enriched in copper-rich nickel phase respectively, and realizes and grows up With sedimentation；Wherein, copper-rich nickel mutually includes a variety of in copper, white metal, copper ice nickel, copper-rich nickel cobalt phase, Fe containing component, or part Copper, nickel, cobalt component enter Fe-riched phase；

(4) zinc component, the lead component mixed in slag is enriched in cigarette ash respectively, is reclaimed；Part component containing indium, bismuth group Divide, component containing potassium, component volatilization containing sodium are reclaimed into flue dust；

(5) silicon in slag is mixed, calcium migrates with phosphorus component, is enriched in silicate mineral phase, floating；

(6) mix free cao in slag to disappear with magnesia, mixing slag is realized quenched；

(7) separation is deposited in copper-rich nickel phase, ferriferous oxide and the silicate mineral phase on top of different parts, realizes mixing The high efficiente callback of copper component in slag, nickel cobalt component, gold and silver component, iron component, phosphorus, calcium and silicon components, Copper in Slag<0.1wt%, Low copper silicate phase can obtain metallic iron or iron with rich iron component by blast furnace ironmaking, direct-reduction or fused reduction iron-smelting Water；

(8) solid-state cupric, iron material can be handled；

(9) slag is realized quenched, and top tailings is disappeared using limiting factor, can be used as cement raw material or construction material or generation Make aggregate and road material or as blast furnace ironmaking and the raw material or phosphate fertilizer of direct reduction iron making and fused reduction iron-smelting for rubble；

(10) this technique is using mixing slag, and whole process is without heating or a small amount of heat compensation；This technique is using mixing Slag, whole process compensate flux for metallurgy without flux for metallurgy or on a small quantity, can handle cold conditions material.The inventive method can be continuous Or the progress of interruption, meet industrial production needs.

(3) beneficial effect

The beneficial effects of the invention are as follows：

(1) present invention realize copper component in Non-ferrous metallurgical slag and Ferrous Metallurgy clinker, iron component, zinc component, lead component, The comprehensive utilization of nickel component, cobalt component, gold, silver, bismuth component, sodium component, potassium component valuable component, solve a large amount of heaps of current clinker Product, problem of environmental pollution.

(2) present invention can handle nickel fibers slag, ferro-alloy cinder, slag, blast furnace slag, lead metallurgical slag and cupric on a large scale Clinker, can solve the problems, such as heavy metal contamination, realize the recovery of heavy metal components.

(3) present invention can handle cold conditions cupric, ferrous material.

(4) raw material of the invention can be the liquid molten nickel fibers slag and the (melting of fusion metallurgy slag flowed out in slag notch One or more in lead metallurgical slag, molten blast furnace slag, molten steel slag, melting ferroalloy slag), there is high-temperature, high heat Feature, take full advantage of slag physics thermal resource；Mix containing substantial amounts of hot flux for metallurgy in slag, be all physical chemistry Good slag system of fine quality, realize the efficient utilization of Metallurgical resources and thermal resource；Take full advantage of the high reactionization of mixing slag The characteristics of active is learned, realizes slag metallurgy.

(5) present invention makes copper group in slag, nickel component, cobalt component, white metal, matte phase, golden component by controlling oxygen gesture Be enriched to copper-rich nickel phase with silver components, realize aggregation, grow up and settle, iron component is enriched in Fe-riched phase, realize aggregation, grow up with Sedimentation, indium component, bismuth component, sodium component, potassium component, lead component and zinc component, which are enriched in cigarette ash to be reclaimed, enters flue dust, Wherein, copper-rich nickel mutually includes a variety of in copper, white metal, copper ice nickel, Cu, Ni and Co phase, Fe containing component, or part copper component is entered Enter Fe-riched phase, Fe-riched phase is including a variety of in metallic iron, FeO phases, fayalite phase, as blast furnace ironmaking or direct-reduction or molten Melt the raw material of reduction iron production.

(6) in the inventive method, cold conditions material and molten copper slag too high, the raising attemperator that avoids slag temperature are added Life-span；Add cold conditions material and improve feed throughput with molten copper slag, can not only handle molten slag, and can locate A small amount of cold conditions material is managed, adaptability to raw material is strong；Adding cold conditions material realizes the chemical heat and slag of the release of slag metallurgical reaction The efficient utilization of physical thermal.

(7) in the inventive method natural cooling process, copper component, nickel component, cobalt component, gold and silver component are rich respectively in slag Combine in copper-rich nickel phase, and realize aggregation, grow up and settle, iron component is enriched in Fe-riched phase in slag, and realize aggregation, grow up with Sedimentation, silicate mineral mutually realize floating；Attemperator equipped with slag, which is placed on rotation platform, to be rotated, acceleration copper-rich nickel phase, The aggregation of Fe-riched phase, grow up and settle；The addition of fluorine-containing material, copper-rich nickel phase, Fe-riched phase is accelerated to grow up and settle.

(8) method that the inventive method is separated using manual sorting, magnetic separation, gravity treatment or slag-gold, respectively to being distributed on Portion, middle part ferrosilicate mineral facies low with bottom, Fe-riched phase, copper-rich nickel are mutually separated, and realize copper component in slag, nickel group Divide, the high efficiente callback of cobalt component, gold and silver component, indium component, bismuth component, iron component, the Iron-containing silicate phase of acquisition and rich iron group The Copper in Slag divided<0.1wt%, in being deposited in due to copper-rich nickel phase, Fe-riched phase, bottom, therefore, it is small to sort slag amount, mineral Grindability increase, ore grinding, magnetic separation and gravity treatment cost are low；Follow-up separation process uses magnetic separation or gravity treatment, and the medium of separation is water, Will not generation environment pollution in separation process；Mine tailing makees aggregate as cement raw material, construction material, instead of rubble, road material uses.

(9) present invention is mutually settled by copper-rich nickel, and the copper content of Iron-containing silicate phase and rich iron component is less than 0.1%, makees For blast furnace ironmaking or direct-reduction or the raw material of melting and reducing, metallic iron and molten iron are obtained.

(10) present invention had both made full use of liquid slag physics thermal resource and hot flux for metallurgy, can handle cold conditions stove again Slag, slag metallurgy is realized, copper component, nickel component, cobalt component, gold and silver component are enriched in copper-rich nickel phase in slag, and realize poly- Collect, grow up and settle, iron component is enriched in Fe-riched phase, realizes aggregation, grows up and settle, separation is deposited in the copper-rich of different parts Nickel phase and Fe-riched phase, realize the high efficiente callback of valuable component in slag；Solid-state copper-contained material, this method technological process can be handled It is short, metal recovery rate is high, production cost is low, adaptability to raw material is strong, treating capacity is big, environment-friendly, economic well-being of workers and staff is high, can solve smelting Golden resource and heat energy high efficiente callback Utilizing question.

Embodiment

A kind of method by the nickeliferous mixing slag recovery valuable component with iron of the present invention, specifically includes following steps：

Step 1, clinker mixes：

By nickel fibers slag, add in the melting reaction device that insulation transposition or slag can flow out, and add lead metallurgical slag (cigarette Change stove clinker and/or leaded smelting slag), blast furnace slag, the one or more in slag and ferroalloy slag, form mixing slag；

Mixing slag is heated to molten condition, forms the nickeliferous and reaction slag of iron；It is well mixed, monitoring reaction in real time Slag, ensure following (a) and (b) two parameters, the slag after the completion of being reacted simultaneously by regulation and control；

(a) temperature of the nickeliferous reaction slag with iron is 1050~1500 DEG C；

(b) the basicity CaO/SiO of the nickeliferous reaction slag with iron₂Ratio=0.15~1.5；

Regulation and control method is：

Corresponding (a)：The temperature for controlling the nickeliferous reaction slag with iron is in the method for design temperature scope：

When 1050 DEG C of the temperature ＜ design temperatures range lower limit of the reaction slag of cupric and iron, pass through reaction unit itself Heating function, or fuel or melting nickel fibers slag, fusion of lead metallurgical slag, molten blast furnace slag, molten steel slag are added into slag Or the one or more of melting ferroalloy slag, when spraying into fuel, while oxidizing gas is sprayed into, reach the temperature of reaction slag In the range of 1050~1500 DEG C of design temperature, during injected fuel, while oxidizing gas is blown；

When 1500 DEG C of the temperature ＞ design temperatures range limit of the nickeliferous reaction slag with iron, to nickeliferous with iron reaction Nickeliferous metallurgical slag, copper-contained material, blast furnace slag, slag, ferroalloy slag, flux for metallurgy, ferrous material or fluorine-containing thing are added in slag One or more in material, the temperature of mixing slag is set to reach in the range of 1050~1500 DEG C of design temperature；

Corresponding (b)：

As basicity CaO/SiO in the nickeliferous and reaction slag of iron₂Ratio<When 0.15, basic species are added into reaction slag Material and/or alkaline ferrous material；

As basicity CaO/SiO in the nickeliferous and reaction slag of iron₂Ratio>When 1.5, acid material is added into reaction slag And/or iron-containing acidic material；

Step 2, separate and recover：

Slag after the completion of reaction, 5~50min, sedimentation being incubated, slag-gold separates, the copper-rich nickel of acquisition bottom molten state, The Fe-riched phase of middle and lower part molten state and the Iron containing silicate minerals phase of middle and upper part molten state, while generate component containing zinc and leaded group Point, wherein, indium, bismuth, nickel, cobalt, gold, silver component move to the copper-rich nickel phase, and part nickel cobalt component moves to Fe-riched phase；

Each phase is recycled using one kind in following methods：

Method one：When can flow out melting reaction device using slag, the slag after the completion of reaction carries out following steps：

(1) molten state Iron containing silicate minerals phase, slag treatment is carried out；

(2) molten state copper-rich nickel phase, converter or converting furnace or the raw material as the separation of copper cobalt nickel are sent to；

(3) part lead component, zinc component, indium component, bismuth component, sodium component, potassium component volatilization enter fume recovery；

(4) Fe-riched phase carries out water quenching or air cooling or pours into attemperator slow cooling or acquisition is combined with gravity treatment through manual sorting, Cupro-nickel raw material is carried as blast furnace ironmaking raw material or direct-reduction nickel metallurgy iron material or iron making by smelting reduction ferronickel raw material or flotation；Flotation Product is copper concentrate, nickel ore concentrate, nickel-containing alloys and iron ore concentrate, and iron ore concentrate is as blast furnace ironmaking raw material or direct reduction iron making raw material Or iron making by smelting reduction iron material；The Direct Reduction uses rotary hearth furnace, tunnel cave, underbody road, shaft furnace, rotary kiln or sensing Stove is as reduction apparatus, and using gas base or coal base reduction technology, gas-based reduction is natural gas and/or coal gas, and coal base reduction is nothing One or more in bituminous coal, bituminous coal, lignite, coking coal, coke powder or coke, reduction temperature are 900~1400 DEG C, basicity CaO/ SiO₂Ratio=0.8~1.5.

Wherein, the Iron containing silicate minerals phase in step (1), slag treatment is carried out, using one kind in method A~G：

Method A：Iron containing silicate minerals are mutually used as cement raw material：

The water quenching of Iron containing silicate minerals phase or air cooling are directly as cement raw material or are further processed into the water of high added value Mud raw material；

Method B：Part or all of Iron containing silicate minerals mutually return to cupric reaction slag：

Part or all of Iron containing silicate minerals mutually return to cupric and iron reaction slag, as hot flux for metallurgy, adjust Whole cupric reacts slag composition, control cupric and iron reaction slag temperature；

Method C：Iron containing silicate minerals mutually pour devitrified glass or as mineral wools；

Method D：Air cooling or water quenching after the oxidation of Iron-containing silicate slag, method include：

(1) in the Iron-containing silicate slag into melting reaction device, the oxidizing gas of preheating is blown into, when slag aoxidizes Ferrous weight percent content<1%, the oxidation of slag is completed, the slag after being aoxidized, wherein, the preheating of oxidizing gas Temperature is 0~1200 DEG C；And in whole process, ensure (c) silicate slag temperature>1450℃；

The control method that corresponding (c) is used：

When Iron-containing silicate slag temperature<1450 DEG C, spray into pre-heating fuel with preheating oxidizing gas, combustion heat release, Additional heat, or device conducting self-heating, make silicate slag temperature>1450℃；

(2) slag Direct Air-Cooled or water quenching after aoxidizing, as adding in slag cements, cement regulator, manufacture of cement Add agent or clinker；

Method E：Iron-containing silicate slag treatment produces the clinker of high added value：

(1) in the Iron-containing silicate slag into melting reaction device, molten steel slag, lime, lime stone, ferroalloy are added Red mud or one kind or several in carbide slag after clinker, flyash, basic iron lean ore, bauxite, molten blast furnace slag, red mud, removing sodium Kind, it is sufficiently mixed, obtains slag mixed material；

(2) oxidizing gas of preheating is blown into slag mixed material, when ferrous oxide weight percent content<1%, The oxidation of completion slag, the slag after being aoxidized, wherein, the preheating temperature of oxidizing gas is 0~1200 DEG C；And whole During, ensure (d) slag mixed material temperature>1450℃；Temprature control method melts with the silicate in method D steps (1) Slag temprature control method；

(3) slag after aoxidizing, air cooling or water quenching are carried out, the clinker of high added value is made；

Method F：Iron-containing silicate slag is as blast furnace ironmaking raw material or direct reduction iron making raw material：

After Iron-containing silicate slag air cooling, water quenching or slow cooling, as blast furnace ironmaking or direct reduction iron making raw material, directly go back After original, using molten point of magnetic separation separation or electric furnace, magnetic separation product is metallic iron and mine tailing, and molten point of electric furnace, product is molten iron and slag；

In reduction process, component containing zinc and leaded component volatilization, flue dust is entered in the form of ZnO and PbO；

Or after the slag of the Iron containing silicate minerals phase is poured into attemperator, separated using following methods：It is molten The modified magnetic separation separation of slag：Slag into attemperator, is blown into the oxidizing gas of 0~1200 DEG C of preheating, and ensures it Slag temperature>1250 DEG C, complete the conversion of magnetic iron ore in slag；By the slag slow cooling after above-mentioned oxidation to room temperature, crush, magnetic Choosing, product is magnetite concentrate and mine tailing, and mine tailing is as construction material；

Method G：Iron-containing silicate slag fused reduction iron-smelting：

(1) the Iron-containing silicate slag in melting reaction device, or ferrous material is added, reducing agent is added in slag, is entered Row melting and reducing, the slag of monitoring reaction in real time, ensures following (a) and (b) two parameters simultaneously by regulation and control, obtains reaction and completes Slag afterwards；

(a) temperature for reacting slag is 1350~1640 DEG C；

(b) the basicity CaO/SiO of slag is reacted₂Ratio=0.6~2.4；

Regulation and control method is：

Corresponding (a)：

Control reaction slag temperature be in the method for design temperature scope：

When reacting 1350 DEG C of the temperature ＜ design temperatures range lower limit of slag, pass through the heating work(of reaction unit itself Can, or fuel and the oxidizing gas of preheating are added into slag, the temperature of reaction slag is reached in the range of design temperature；

When reacting 1640 DEG C of the temperature ＞ design temperatures range limit of slag, added into reaction slag flux for metallurgy, One or more in ferrous material or fluorine-containing material, make the temperature of reaction slag reach in the range of design temperature；

Corresponding (b)：

(2) oxidizing gas into slag after blowing preheated carries out melting and reducing, the slag formed after reduction, wherein： The preheating temperature of oxidizing gas is 0~1200 DEG C, and during injection, ensures (a) and (b) two ginsengs simultaneously by regulation and control Number：

(a) temperature of the slag after the completion of reacting is 1350~1640 DEG C；

(b) the basicity CaO/SiO of the slag after the completion of reacting₂Ratio=0.6~2.4；

Wherein, design temperature scope and basicity regulate and control method with method G steps (1)；

(3) separate and recover：

Using one kind in following methods：

Method I：Carry out following steps：

(a) cool down：Mixing slag after reduction is poured into insulation slag ladle, is cooled to room temperature, obtains slow cooling slag；

(b) separate：Metallic iron is deposited to the bottom of reaction unit, forms iron and sticks together, and the artificial iron that takes out sticks together；By remaining slow cooling slag Middle containing metal iron layer, 20~400 μm of granularity is crushed to, residual metallic iron and mine tailing are isolated in ore grinding, magnetic separation；

(c) recycling of mine tailing, making aggregate, road material or phosphate fertilizer as cement raw material, construction material, instead of rubble makes With；

Method II：Carry out following steps：

(a) the mixing slag after reducing, cooling-sedimentation, slag-gold separation, molten iron and the slag after reduction are obtained；

(b) slag after reducing, carries out the outer slag treatment of stove, and concrete mode is：Using the separation and recovery method one of step 2 In method A~E in one or more, carry out slag treatment；

(c) molten iron, converter or electric furnace steel making are sent to；

(d) component containing zinc and leaded component volatilization, in the form of an oxide into fume recovery；

(e) part indium component, bismuth component, sodium component, potassium component volatilization enter flue dust；

(f) coal gas caused by reduction is in slag surface second-time burning, there is provided heat, and also the coal gas by being flowed out in stove can Using the thermal source as drying furnace charge and attemperator；

Method two：During the melting reaction device that can be flowed out using slag, the slag after the completion of reaction carries out following steps：

(1) molten state copper-rich nickel phase, converter or converting furnace or the raw material as the separation of copper cobalt nickel are sent to；

(2) molten state Fe-riched phase layer is mutually used with Iron containing silicate minerals in the step of separation method one (4) in step 2 Fe-riched phase layer processing method is handled；

(3) partly component containing zinc and leaded component volatilization, in the form of an oxide into fume recovery；

(4) part indium component, bismuth component, sodium component, potassium component volatilization enter flue dust.

Method three：During the melting reaction device that can be flowed out using slag, the slag after the completion of reaction carries out following steps：

(1) molten state Iron containing silicate minerals phase, carries out slag treatment, and specific processing mode is：Using the separation of step 2 One or more of progress slag treatments in method A~G in recovery method one；Or used containing the Fe-riched phase in method one The step of (4) handled；

(2) molten state copper-rich nickel phase or after pouring into attemperator slow cooling, is sent to converter or converting furnace or as copper cobalt nickel point From raw material；

(3) part indium component, bismuth component, sodium component, potassium component volatilization enter fume recovery；

Method four：During using the rotatable converter of slag with reaction slag ladle, the slag after the completion of reaction carries out following steps：

(1) molten state Iron containing silicate minerals phase and Fe-riched phase, carry out slag treatment, and concrete mode is：Using step 2 The one or more in method A~G in separation and recovery method one are handled；

(3) part lead zinc component, indium component, bismuth component, sodium component, potassium component volatilization enter cigarette into soot oxidation thing Dirt.

Method five：During using attemperator, or the melting reaction device that can be flowed out using slag, slag is poured into insulation dress When putting, the slag after the completion of reaction carries out following steps：

(1) sedimentation cooling：Slag after the completion of reaction is cooled to room temperature, obtains slow cooling slag；Copper-rich nickel is mutually deposited to reaction The bottom of device, form copper-rich nickel and stick together；Iron containing silicate minerals mutually float；It is slow among copper-rich nickel phase and Iron containing silicate minerals Cold slag is Fe-riched phase, while generates component containing zinc and leaded component；Gold and silver component moves to copper-rich nickel phase；

(2) separate：The copper-rich nickel that artificial taking-up is deposited in bottom sticks together, toward converter or converting furnace or as the separation of copper cobalt nickel Raw material；The Fe-riched phase layer at middle part is as blast furnace nickel metallurgy iron material or direct-reduction nickel metallurgy iron material or iron making by smelting reduction ferronickel raw material Or flotation carries copper raw material；In floatation process, float product is copper concentrate, nickel ore concentrate, nickel alloy and iron ore concentrate, iron ore concentrate conduct Blast furnace ironmaking raw material or direct reduction iron making raw material or iron making by smelting reduction iron material；

The Direct Reduction is using rotary hearth furnace, tunnel cave, underbody road, shaft furnace, rotary kiln or induction furnace as reduction Equipment, using gas base or coal base reduction technology, gas-based reduction uses natural gas and/or coal gas, and coal base reduction is using anthracite, cigarette One or more in coal, lignite, coking coal, coke powder or coke, and it is 900~1400 DEG C to control reduction temperature, controls basicity CaO/SiO₂Ratio=0.8~1.5；

(3) the Iron containing silicate minerals phase on top is manually taken out, as blast furnace ironmaking raw material or direct reduction iron making raw material Iron making by smelting reduction iron material or as cement raw material, construction material, instead of rubble make aggregate, road material uses；

(4) part lead component, zinc component, indium component, bismuth component, sodium component, potassium component volatilization enter flue dust.

Method as described above, it is preferable that in described step 1, the nickel fibers slag is that " matte smelting " technique produces Ni-B alloy slag, the nickel convering of copper ice " technique blowing after blowing slag, " nickel convering of copper ice " technique blowing after blowing slag through dilution Caused by Ni-B alloy slag caused by caused dilution clinker, top blow smelting, Ni-B alloy slag caused by top blow smelting are settled through electric furnace Settle one or more in slag；The nickel fibers slag is molten state or cold conditions, wherein：Melting nickel fibers slag is slagged tap by nickel fibers stove Mouth is obtained, or nickel fibers slag is heated into molten condition；

The blast furnace slag, slag and ferroalloy slag are molten state, or cold conditions, wherein：Molten state clinker (blast furnace slag, slag With ferroalloy slag) obtained by slag notch, or cold conditions clinker (blast furnace slag, slag and ferroalloy slag) is heated to molten condition；Institute Slag is stated as molten iron pre-desulfurization slag (desulfurization slag, desiliconization slag, dephosphorized slag), vessel slag, electroslag, VOD/VAD slags, VD slags, centre Bag waste；The ferro-alloy cinder be ferroalloy production process in caused clinker, including smelt carbon ferromanganese caused by clinker, Smelt clinker caused by ferrochrome, clinker caused by smelting ferronickel, clinker caused by smelting ferrovanadium, clinker caused by smelting duriron, Smelt clinker caused by ferro-niobium, clinker caused by Smelting Ferromolybdenum, clinker caused by Smelting Simn In A；

The copper-contained material be blister copper copper fire refining slag, nominal group process, copper ashes, zinc smelting dreg, zinc abstraction cigarette ash and dirt Mud, Pb-Zn tailings, plumbum smelting slag, lead copper matte, setting form, fire refining of crude lead slag, lead smelt lead fume ash and dirt mud, plumbic acid electricity Pond, Copper making cigarette ash and dirt mud, composition brass, cupric rubbish, containing the one or more in copper circuit board, tin metallurgical slag, tailing；Its In, zinc smelting dreg is zinc smelting dreg caused by zinc hydrometallurgy and pyrometallurgy of zinc, including leached mud, iron vitriol slag, copper-cadmium slag, goethite Slag, bloodstone slag, volatilization kiln slag, zinc vertical retorting slag, blast furnace slag, fuming slag, vortex clinker, electric furnace zinc smelting slag；Leaded smelting It is fuming furnace clinker and leaded smelting slag to refine slag, and " reduction of ISP imperial smelting furnaces " or " sintering deposit blast furnace reduction " or " solid-state is high Lead skim reduction " or " liquid high lead dross reduction technique " reducing process produce leaded smelting slag, and leaded smelting slag passes through fuming furnace smelting Refining produces leaded fuming slag；The copper ashes is cupric smelting slag, slag containing copper converting, dilution waste, flotation tailings, wet type copper smelting One or more in slag, cupric smelting slag result from " matte smelting " process of the pyrometallurgical smelting process of copper；The cupric blows Refining slag results from " Copper Matte Converting " process of the pyrometallurgical smelting process of copper；Dilution waste is that cupric smelting slag and slag containing copper converting are poor Waste after change, flotation tailings are cupric smelting slag and tailings after the ore dressing of slag containing copper converting.

In side as described above, it is preferable that melting reaction device is what slag can flow out, and specially rotatable melting is anti- Answer device or the melting reaction device with cinder notch or iron mouth；Wherein：

Described attemperator fills for dumpable melting reaction slag, thermal insulation pit；

Described rotatable melting reaction device is converter, melting reaction slag ladle；

The described melting reaction device that can be flowed out with cinder notch or iron mouth slag is plasma heating furnace, direct current electric arc furnace, friendship Flow electric arc furnaces, mineral hot furnace, blast furnace, blast furnace, induction furnace, furnace cupola, side-blowing bath smelting furnace, bottom blowing molten pool smelting furnace, top blast Bath smelting furnace, reverberatory furnace, Ausmelt furnace, Isa furnace, watt button can husband's bath smelting furnace, side-blown rotary furnace, bottom blowing rotary furnace, Top blast rotary furnace.

In described step 1, ensure following (a) and (b) two parameters simultaneously by regulation and control, while ensure to react in slag Cu oxide, nickel oxide, cobalt/cobalt oxide and ferriferous oxide are reduced to metallic copper, metallic nickel, metallic cobalt and FeO, slag respectively Middle metal Ferrum content<3%.It can be regulated and controled by adding one or both of reducing agent, carbon containing ferrous material, wherein, The dosage of the reducing agent is that Cu oxide, nickel oxide, cobalt/cobalt oxide and ferriferous oxide are reduced to metallic copper, metal in slag The theoretical amount 110~140% of nickel, metallic cobalt and FeO；The carbon containing ferrous material is that steel dust and mud contains with cigarette ash, iron ore concentrate Carbon pre-reduced pellet, iron ore concentrate carbonaceous metallized pellet, zinc hydrometallurgy volatilization kiln slag, coke furnace dust mud and cigarette ash.

In described step 1 and 2, described fuel and the one or more that reducing agent is in solid, liquid or gas, with The mode of injection sprays into, and is loaded into oxidizing gas of the gas for preheating, and preheating temperature is 0~1200 DEG C；Solid fuel and reduction Agent is the one or more in coal dust, flyash, coke powder, coke, bituminous coal or anthracite, is shaped as granular or powdery or bulk, The granularity of granular material is 5~25 μm, and the granularity of granular material is≤150 μm, and liquid fuel is heavy oil with reducing agent, and gas fires Material and reducing agent are one or both of coal gas and/or natural gas；Described flux for metallurgy is containing CaO or SiO₂Mineral, One kind specially after quartz sand, quartz sand containing gold and silver, red mud, removing sodium in high calcium red mud, carbide slag, dolomite or lime stone or It is several；

Described ferrous material is common iron ore concentrate, common iron ore concentrate DRI, common iron ore concentrate sintered ore deposit, common Iron Ore Pellets, common iron ore concentrate metallized pellet, the carbon containing pre-reduced pellet of common iron ore concentrate, slag, zinc smelting dreg, coke Smelting smoke dust and dirt mud, steel flue dust and dirt mud, nickeliferous metallurgical slag, lead metallurgical slag, copper ashes, lead metallurgical slag, zinc smelting dreg, tin smelting One or more after refining slag, red mud, removing sodium in high calcium red mud, coal dust ash, pyrite cinder；The steel flue dust includes with dirt mud drum Blast furnace gas mud, bof sludge, electric furnace dust mud, heat (cold) roll sludge, sintering dust, pelletizing dust, go out ironworks dust, high tile This ash, electric stove dust ash, steel rolling iron scale；The zinc metallurgy slag of wet method and dirt mud need to through being dehydrated, dry；Described fluorine-containing material is Fluorite, CaF₂Or the one or more in fluorine-containing blast furnace slag.

In above-mentioned raw material, zinc smelting dreg and flue dust, lead metallurgical slag and cigarette ash contain indium and bismuth, in red mud containing sodium and Potassium, steel cigarette ash contain indium with dirt mud, and bismuth is silver-colored, and sodium and potassium, above material have iron, and lead metallurgical slag and zinc smelting dreg have copper, Bellamya aeruginosa contains indium and bismuth with dirt mud, therefore in the method for invention, indium, bismuth, sodium, potassium, zinc, lead can enter in the form of the oxide Enter flue dust, so as to be reclaimed.

In described step 1 and 2, the temperature of control mixing slag is in the method for design temperature scope：

The copper-contained material, ferrous material and fluorine-containing material are pelletizing or granular material or granulation；Wherein, granular material Granularity be 5~25 μm, the granularity of granular material is≤150 μm, and granular material is sprayed into a manner of being blown, and it is pre- to be loaded into gas The argon gas of heat, nitrogen, reducibility gas (coal gas and/or natural gas), the one or more in oxidizing gas, preheating temperature are 0~1200 DEG C, described injection method be using refractory lance insert slag or be placed in cupric and iron reaction slag top or Side is blown into；

Copper-contained material and ferrous material are hot or cold conditions, and described hot material is the heat of the direct output from metallurgical furnace State material, hot temperature of charge are 200~1550 DEG C.

In described step 1, the temperature of control mixing slag is in the method for design temperature scope：

When mixing the temperature ＞ design temperature upper limits of slag, nickel metallurgical residue, copper-contained material, ferrous material, blast furnace are added One or more in slag, slag, ferroalloy slag, flux for metallurgy or fluorine-containing material, it is therefore an objective to avoid temperature too high, protect fire resisting Material；Another effect for adding fluorine-containing material be reduce viscosity, accelerate slag in copper-rich nickel phase, Fe-riched phase aggregation, grow up with Sedimentation, be advantageous to silicate floating；

In described step 1, in slag course of reaction, copper component, nickel component, cobalt component, the enrichment of gold and silver component in slag In copper-rich nickel phase, and aggregation is realized, grows up and settles, iron component discharges from olivine, is enriched in Fe-riched phase, realizes poly- Collect, grow up and settle, zinc component, lead component respectively enter flue dust in slag, wherein in cigarette ash in the form of zinc oxide and lead oxide Recovery, copper-rich nickel is mutually copper, white metal, copper ice nickel, Cu, Ni and Co phase, a variety of in Fe containing component, or part copper component enter it is rich Iron phase, Fe-riched phase include a variety of in metallic iron, FeO phases, fayalite phase；

In the step 1 and 2, when adjusting basicity, described alkaline material is pulverized limestone, red mud, high calcium red mud after removing sodium, It is one or more of in carbide slag, dolomite dust or calcium lime powder；Described alkaline ferrous material is CaO/SiO₂>=1 chalybeate Material, alkaline sintering deposit, slag, ferroalloy slag, alkaline iron ore concentrate, alkaline pre-reduced pellet, alkalinous metal pellet, slag or height It is one or more of in clinker；

In the step 1 and 2, when adjusting basicity, in the step 1 and 2, when adjusting basicity, described acid material is One or more in silica, silica containing gold and silver, flyash, gangue；Described iron-containing acidic material is CaO/SiO₂≤ 1 Ferrous material, acid sinter ore, acid iron ore concentrate, acid pre-reduced pellet, acid metal pellet, copper ashes, lead metallurgical slag, zinc One or more in metallurgical slag, nickel fibers slag, tin metallurgical slag, blast furnace slag；

In described step 1 and 2, copper-rich nickel phase, Fe-riched phase are assembled, grow up and settle in slag, are advantageous on silicate It is floating；

In described step 1, while ensureing (a) and (b) two parameters, it is sufficiently mixed mixing slag, hybrid mode To mix or being stirred naturally, agitating mode is one kind in the following manner：Argon gas stirring, nitrogen gas stirring, argon-nitrogen mix Close the one or more in gas, reducibility gas (coal gas and/or natural gas), oxidizing gas, electromagnetic agitation, mechanical agitation；

In described step 2, Direct Reduction is using rotary hearth furnace, tunnel cave, underbody road, shaft furnace, rotary kiln, induction furnace As reduction apparatus, using gas base or coal base reduction technology, gas base is natural gas and/or coal gas, and coal base reduction is anthracite, cigarette One or more in coal, lignite, coking coal, coke powder, coke, reduction temperature are 900~1400 DEG C, basicity CaO/SiO₂Ratio= 0.7~1.9,

In described step 1 and 2, oxidizing gas for preheating air, oxygen, oxygen-enriched air, nitrogen-air, argon gas- One kind in air, oxygen-nitrogen, oxygen-argon gas, preheating temperature are 0~1200 DEG C, and described injection method is using fire resisting Spray gun inserts slag or is placed in cupric and the reaction slag top of iron or side or bottom is blown into；

The type of cooling used in described step 2, during separation is natural cooling or rotation cooling or centrifugation cooling, sedimentation Mode is natural subsidence or spun down or centrifugation cooling；

Further, rotate and the concrete operations of centrifugation cooling are：Device equipped with the slag after the completion of reaction is placed in rotation Turn on platform, rotated according to certain speed, rotary speed is depending on slag quality and attemperator height or depth, rotation Time is depending on slag quality and slag solidification situation；Device equipped with the slag after the completion of reaction is placed on rotation platform and revolved Turn, it is therefore an objective to accelerate copper-rich nickel phase, Fe-riched phase aggregation, grow up and settle, be advantageous to silicate (rich phosphorus phase) floating, shorten sedimentation Time, improve effect of settling, improve production efficiency；

In described step 2, in the slag cooling procedure after the completion of reaction, because density is different different from mineral size, Most of copper-rich nickel phase, Fe-riched phase fall to middle and lower part；

In described step 2, copper component, nickel component, cobalt component, gold and silver component continue to move in the slag after the completion of reaction Move, be enriched in copper-rich nickel phase, mix iron component in slag and continue to migrate, be enriched in Fe-riched phase respectively, and realize and grow up and settle；

In method as described above, Copper in Slag≤0.1% that finally obtains, the rate of recovery of iron is >=91%, the recovery of zinc Rate is >=92%, and the rate of recovery of lead is >=93%, and the accumulation rate of nickel is >=92%, and the accumulation rate of cobalt is >=92%, golden enrichment Rate is >=90%, and silver-colored accumulation rate is >=90%.

In order to preferably explain the present invention, in order to understand, by embodiment, the present invention is described in detail. Wherein, detection method used is not known what is pointed out with raw material in following examples, this area routine techniques can be used, unless separately It is described, percentage used is percetage by weight in the present invention.

When step (1) slag in example 1 below -10 mixes, pass through (a) and (b) the two parameters tools for regulating and controlling and ensureing Body is：

(a) temperature of the reaction slag of cupric and iron is 1050~1500 DEG C；

(b) the reaction slag basicity CaO/SiO of cupric and iron₂Ratio=0.15~1.5；

Embodiment 1

A kind of method by the nickeliferous mixing slag recovery valuable component with iron, comprise the following steps：

Step 1, clinker mixes：Will by " making sulfonium technique " technique smelting furnace slag notch obtain melting nickel fibers slag with by " nickel convering of copper ice " technique converting furnace slag notch adds direct current electric arc furnace, while adds cold conditions blast furnace slag, VOD/VAD slags and smelting Ferro-alloy cinder caused by carbon ferromanganese, the leaded smelting slag of liquid high lead dross reduction stove, form mixing slag；Slag will be mixed Molten condition is heated to, forms the reaction slag of cupric and iron, and makes reaction slag electromagnetic agitation, realizes that nature mixes；In real time Monitoring reaction slag, ensure (a) and (b) two parameters, the slag after the completion of being reacted simultaneously by regulation and control；Corresponding (a)：Contain The temperature of the reaction slag of copper and iron is 1660 DEG C, using in refractory lance intercalation reaction slag, using nitrogen as gas is loaded into, is sprayed into The copper ashes of normal temperature powdery granularity≤150 μm, containing Bellamya aeruginosa, composition brass and cupric rubbish and containing copper circuit board, while add high tile This mud, electric furnace dust mud, bof sludge, common iron ore concentrate DRI and blast furnace dust, make temperature be down to 1480 DEG C；(b)： The basicity CaO/SiO of the reaction slag of cupric and iron₂Ratio=2.8, silica, flyash and gangue are added into reaction slag Mixture, the reaction slag basicity ratio of cupric and iron is set to be down to 1.4；Metal Ferrum content is 0.5% in slag；

Step 2, separation and recovery uses method one：

48min is incubated, slag natural subsidence, slag-gold separation, obtains molten state copper-rich nickel phase, Fe-riched phase and iron content silicic acid Salt mineral facies, while zinc component and lead component are generated, carry out following steps：(1) molten state Iron containing silicate minerals phase, stove is carried out Outer slag treatment, using method F, after silicate slag air cooling, as direct reduction iron making raw material, carried out using rotary kiln direct Reduction, using gas-based reduction technology, gas-based reduction agent is natural gas and coal gas, and reduction temperature is 900 DEG C, basicity CaO/SiO₂Than It is worth for 0.8, metallic iron and slag is separately won to obtain using magnetoelectricity stove is molten after reduction, it is molten to divide temperature to be 1550 DEG C；Product is metal molten iron With slag；(2) molten state copper-rich nickel phase, is sent to converter；(3) Fe-riched phase pours into attemperator, is used as blast furnace ironmaking former after air cooling Material；(4) zinc component indium component, lead component, bismuth component, potassium component, sodium component volatilization, in the form of an oxide into fume recovery, Copper in Slag<0.1%, zinc recovery 93%, indium recovery 93%, the bismuth rate of recovery is 94%, and the sodium rate of recovery is 95%, and potassium returns Yield is 96%, lead recovery 94%, iron recovery 95%, and the accumulation rate of nickel is 93%, and the accumulation rate of cobalt is 95%, gold Accumulation rate be 91%, silver-colored accumulation rate be 92%.

Wherein, in all embodiments of the invention, Copper in Slag refers to the slag phase after the phase separation of copper-rich nickel, specially rich iron Mutually and the copper content in silicate mineral phase, nickel, the accumulation rate of cobalt refer to the content in copper-rich nickel phase account in raw material correspond to nickel, The percentage of cobalt total amount, the accumulation rate of gold, silver refer to that copper-rich nickel phase and the content of gold, silver in cigarette ash account for gold, silver total amount in raw material Percentage.

Embodiment 2

Step 1, clinker mixes：Will by " making sulfonium technique " technique smelting furnace slag notch obtain melting nickel fibers slag with by The melting nickel fibers slag that " nickel convering of copper ice " technique blowing slag obtains through dilution stove slag notch adds dumpable melting reaction slag Fill, while add ferro-alloy cinder caused by the molten state smelting ferrochrome obtained as slag notch, formation mixing slag；With oxygen-enriched sky Gas, Natural GasInjecting, granularity are 20mm anthracites and char particle, and mixing slag is heated into molten condition, form cupric and iron Slag is reacted, and makes reaction slag electromagnetic agitation, realizes mixing；In real time monitoring reaction slag, by regulation and control simultaneously ensure (a) and (b) two parameters, slag after the completion of being reacted；1660 DEG C of corresponding (a) cupric and iron reaction slag temperature, using refractory lance In intercalation reaction slag, using argon gas as carrier gas, spray into normal temperature powdery granularity≤150 μm copper ashes, burnt containing Bellamya aeruginosa, composition brass, steel Knot dust, agglomerates of sintered pellets dust, go out the common iron ore concentrate of ironworks dust, common iron ore concentrate DRI and common iron ore concentrate sintered Ore deposit, temperature is set to be down to 1480 DEG C；(b) cupric and iron reaction slag basicity CaO/SiO₂Ratio is 2.7, is added into reaction slag Acid sinter ore, acid iron ore concentrate and acid pre-reduced pellet, cupric is reacted slag basicity ratio with iron and be down to 1.3；Slag Middle metal Ferrum content is 2.9%；

Step 2, separation and recovery uses method two：It is incubated 50min, the slag spun down after the completion of reaction, slag-gold point From, molten state copper-rich nickel phase, Fe-riched phase and Iron containing silicate minerals phase are obtained, while zinc component, lead component and indium component are generated, Carry out following steps：(1) molten state silicate mineral phase and Fe-riched phase layer, slag treatment outside stove is carried out using method G, slag melts Melt reduction nickel metallurgy iron, step is as follows：(1-1) slag is poured into dumpable converter, and it is that 20mm is smokeless that granularity is added into slag Coal and bituminous coal, melting and reducing is carried out, the slag of monitoring reaction in real time, by regulating and controlling to ensure that the temperature that following (a) reacts slag is 1350~1640 DEG C, and (b) reaction slag basicity CaO/SiO₂Ratio=0.6~2.4 two parameter, after the completion of being reacted Slag；Corresponding (a)：The temperature of slag is 1480 DEG C, in temperature range；Corresponding (b)：React basicity CaO/SiO in slag₂Than Be worth for 0.8 when, in alkalinity ranges；(1-2) 200 DEG C of oxygen-enriched air of blowing preheated into slag after the completion of reaction melt also Original, slag is mixed after forming reduction, and during injection, ensured simultaneously by regulation and control (a) react slag temperature be 1350~ 1640 DEG C, and (b) reaction slag basicity CaO/SiO₂Ratio=0.6~2.4 two parameter；(1-3) is separated and recovered：(a) reduce After mix slag, sedimentation slag-gold separation, slag after obtaining molten iron and reducing；(b) slag after reducing, using in step 2 method one High added value cement raw material is made in method A processing；(c) nickel-containing molten iron is sent to converter or electric furnace steel making；(d) component containing zinc, leaded group Point, bismuth component and indium component volatilization, in the form of an oxide into flue dust；(e) component containing sodium, component volatilization containing potassium, into flue dust Recovery；

(2) molten state copper-rich nickel phase, is sent to converter；(3) zinc component, lead component, bismuth component and indium component volatilization, oxide Form enters fume recovery.Last Copper in Slag<0.1%, zinc recovery 95%, lead recovery 93%, indium recovery is 96%, the bismuth rate of recovery is 96%, and the sodium rate of recovery is 97%, and the potassium rate of recovery is 98%, Copper in Slag<0.1%, iron recovery is 97%；The accumulation rate of nickel is 92%, and the accumulation rate of cobalt is 96%, and golden accumulation rate is 92%, and silver-colored accumulation rate is 92%.

Embodiment 3

Step 1, clinker mixes：By by the melting nickel fibers slag that " making sulfonium technique " technique smelting furnace slag notch obtains with by pushing up Blow bath smelting and produce smelting slag through settling the melting nickel fibers slag addition direct current electric arc furnace that electric furnace slag notch obtains, add simultaneously The slag obtained by pneumatic steelmaking slag notch, form mixing slag；With the oxygen that preheating temperature is 600 DEG C, injection granularity is 20mm anthracites, char particle and coal dust, mixing slag is heated to molten condition, forms the reaction slag of cupric and iron, and make to melt Slag realizes mixing；Monitoring slag in real time, ensure (a) and (b) two parameters simultaneously by regulation and control, it is molten after the completion of being reacted Slag；Corresponding (a)：The temperature of the reaction slag of cupric and iron is 1685 DEG C, and quartz sand, red mud, white clouds are added into reaction slag Stone and lime stone, while add copper-contained material, lead-containing material, common Iron Ore Pellets, steel rolling scale oxide and common iron essence The carbon containing pre-reduced pellet of ore deposit, makes temperature be down to 1430 DEG C；(b)：The basicity CaO/SiO of the reaction slag of cupric and iron₂Ratio= 3.0, the mixture of acid metal pellet, cupric smelting slag and the slag containing copper converting is added into reaction slag, makes cupric and iron The basicity ratio of reaction slag be down to 0.8；Metal Ferrum content is 2.2% in slag；

Step 2, separation and recovery uses method two：It is incubated 35min, the slag natural subsidence after the completion of reaction, slag-gold point From, acquisition molten state copper-rich nickel phase, Fe-riched phase layer and Iron containing silicate minerals phase, while generate component containing zinc, leaded component, contain Sodium component, component containing potassium, into flue dust, reclaim in the form of an oxide, carry out following steps：

(1) molten state copper-rich nickel phase, is sent to converter；

(2) molten state Fe-riched phase layer mutually carries out separating treatment with silicate mineral using following methods：

As direct-reduction nickel metallurgy iron material；In reduction process, zinc component, lead component, bismuth component and indium component volatilization, enter Enter flue dust；In Direct Reduction, using rotary hearth furnace, reduction temperature is 1200 DEG C, basicity CaO/SiO₂Ratio=1.0, granularity For≤150 μm of anthracite and coal dust；

(3) component containing sodium, potassium component, zinc component, indium component, bismuth component and leaded component volatilization, into fume recovery.

Copper in Slag<0.1%, the rate of recovery of iron is 97%, and the rate of recovery of sodium is 93%, and the rate of recovery of potassium is 95%, zinc The rate of recovery is 97%, and the rate of recovery of lead is 93%, and indium recovery 94%, the bismuth rate of recovery is 94%；The accumulation rate of nickel is 96%, The accumulation rate of cobalt is 97%, and golden accumulation rate is 91%, and silver-colored accumulation rate is 93%.

Embodiment 4

Step 1, clinker mixes：Cold conditions is produced what smelting slag obtained through settling electric furnace slag notch by top-blown bath melting Melt nickel fibers slag and add plasma heating furnace, while add converter slag, electric furnace slag and the smelting ferronickel obtained by slag notch and obtain The ferro-alloy cinder obtained, form mixing slag；Mixing slag is heated to molten condition, forms cupric and iron reaction slag, and Make the argon gas that reaction slag blowing preheated temperature is 400 DEG C, realize mixing；The slag of monitoring reaction in real time, is protected simultaneously by regulation and control Demonstrate,prove (a) and (b) two parameters, the slag after the completion of being reacted；The temperature of the reaction slag of corresponding (a) cupric and iron is 1670 DEG C, red mud, pyrite cinder, fluorite, lead copper matte, lead-containing soot, soot containing zinc, setting form and wet method refining are added into reaction slag Cadmia, temperature is set to be down to 1430 DEG C；(b) the reaction slag basicity CaO/SiO of cupric and iron₂Ratio is 2.9, into reaction slag Slag containing copper converting is added, cupric is reacted slag basicity ratio with iron and is down to 1.1；Natural GasInjecting, and be 800 with preheating temperature DEG C air blown granularity be 20mm char particle, metal Ferrum content is 1.7% in slag；

Step 2, separation and recovery uses method four：19min, slag natural subsidence after the completion of reaction are incubated, slag-gold separates, Molten state copper-rich nickel phase, Fe-riched phase layer and Iron containing silicate minerals phase are obtained, and containing zinc and leaded component, carries out following steps： (1) molten state copper-rich nickel phase, is sent to converter；(2) molten state Fe-riched phase layer and Iron containing silicate minerals phase step 2 side of separation and recovery Method I in method one, oxidation modification magnetic separation separation：1. slag is poured into insulation slag ladle, preheating temperature is sprayed into slag is

900 DEG C of oxygen-enriched air, realize the conversion of magnetic iron ore；2. slow cooling magnetic separation separation, obtains iron ore concentrate and tail to room temperature Ore deposit；(3) partly component containing zinc, bismuth component, indium component and leaded component volatilization, into fume recovery, the Copper in Slag finally obtained< 0.1%, the rate of recovery of iron is 94%, and the rate of recovery of zinc is 92%, and the rate of recovery of lead is 94%, and indium recovery 95%, bismuth returns Yield is 94%, and the accumulation rate of nickel is 94%, and the accumulation rate of cobalt is 93%, and golden accumulation rate is 90%, and silver-colored accumulation rate is 92%.

Embodiment 5

Step 1, clinker mixes：Will by " making sulfonium technique " technique smelting furnace slag notch obtain melting nickel fibers slag, by " copper The melting nickel fibers slag that ice nickel convering " technique converting furnace slag notch obtains adds insulation slag ladle, while it is pre- de- to add cold conditions molten iron Sulphur slag and the converter molten steel slag obtained by slag notch, form mixing slag；With the air that preheating temperature is 800 DEG C, grain is blown Spend for 20mm bituminous coal and coal dust, mixing slag is heated to molten condition, forms the reaction slag of cupric and iron, and melt reaction Slag realizes mixing；The slag of monitoring reaction in real time, ensure (a) and (b) two parameters simultaneously by regulation and control, after the completion of being reacted Slag；Corresponding (a)：The reaction slag temperature of cupric and iron is 1450 DEG C；(b)：Cupric and iron reaction slag basicity CaO/SiO₂ Ratio is 0.5, in claimed range；Metal Ferrum content is 1.4% in slag；

Step 2, separation and recovery uses method five：Slag after the completion of reaction is subjected to following steps：(1) sedimentation cooling： 38min is incubated, the slag after the completion of reaction naturally cools to room temperature, obtains slow cooling slag；Copper-rich nickel is mutually deposited to reaction unit Bottom, form copper-rich nickel and stick together；Iron containing silicate minerals mutually float；Copper-rich nickel phase metal sticks together is with slow cooling slag among silicate mineral Fe-riched phase, while generate containing zinc and leaded component；(2) separate：The copper-rich nickel that artificial taking-up is deposited in bottom sticks together, as Cu, Ni and Co The raw material of separation；The Fe-riched phase layer at middle part is as direct-reduction nickel metallurgy iron material；(3) the Iron-containing silicate ore deposit on top is manually taken out Thing phase, silicate mine tailing is obtained, is used as cement raw material；(4) part zinc component, lead component, bismuth component and indium component volatilization, Enter fume recovery, Copper in Slag in the form of an oxide<0.1%, the rate of recovery of iron is 91%, and the rate of recovery of zinc is 94%, lead The rate of recovery is 95%；The accumulation rate of nickel is 95%, and the accumulation rate of cobalt is 93%, and golden accumulation rate is 91%, and silver-colored accumulation rate is 92%.

Embodiment 6

Step 1, clinker mixes：Will by " making sulfonium technique " technique obtain cold conditions nickel fibers slag, by " nickel convering of copper ice " work The cold conditions nickel fibers slag that skill blowing slag obtains through dilution stove adds ac arc furnace, while adds iron caused by cold conditions smelting ferrovanadium Ferro-alloy cinder caused by alloy clinker and smelting duriron, form mixing slag；Mixing slag is heated to molten condition, formed Cupric and iron reaction slag, and make the argon-nitrogen gaseous mixture that reaction slag blowing preheated temperature is 400 DEG C, mixing；Prison in real time Reaction slag is surveyed, ensures (a) (b) two parameter simultaneously by regulation and control, slag after the completion of being reacted；Corresponding (a)：Cupric is anti-with iron It is 1040 DEG C to answer slag temperature, and oxygen-enriched air, heavy oil and melting slag containing copper converting are added into reaction slag, rises to temperature 1330℃；(b)：Cupric and iron slag basicity CaO/SiO₂Ratio is 0.1, and converter mud, alkaline prereduction are added into slag High calcium red mud after pelletizing, removing sodium, cupric is set to rise to 0.4 with iron slag basicity ratio；Metal Ferrum content is 1.9% in slag；

Step 2, separation and recovery uses method one：19min is incubated, by the slag natural subsidence after the completion of reaction, slag-gold point From, acquisition molten state copper-rich nickel, Fe-riched phase layer and Iron containing silicate minerals phase, and containing zinc and leaded component, walked as follows Suddenly：(1) molten state Iron containing silicate minerals mutually use the method A of step 2 separation and recovery method one, and cement raw material is directly made in water quenching；(2) Molten state copper-rich nickel phase, is sent to converter；(3) after Fe-riched phase layer pours into attemperator cooling, the raw material as direct reduction iron making； (4) partly component containing zinc, leaded component, component containing indium and bismuth-containing component volatilization, into fume recovery.Copper in Slag<0.1%, iron The rate of recovery be 92%, the rate of recovery of zinc is 94%, and the rate of recovery of lead is 95%, indium recovery 93%, and the bismuth rate of recovery is 94%, the sodium rate of recovery is 95%, and the potassium rate of recovery is 96%；The accumulation rate of nickel is 94%, and the accumulation rate of cobalt is 92%, golden enrichment Rate is 92%, and silver-colored accumulation rate is 94%.

Embodiment 7

Step 1, clinker mixes：Will by " making sulfonium technique " technique smelting furnace slag notch obtain melting nickel fibers slag, by " copper The melting nickel fibers slag that ice nickel convering " technique converting furnace slag notch obtains adds mineral hot furnace, while adds the smelting of slag notch acquisition Clinker caused by clinker caused by smelting ferro-niobium and Smelting Ferromolybdenum, form mixing slag；Mixing slag is heated to molten condition, shape Into cupric and the reaction slag of iron, and make reaction slag nitrogen-blow, realize mixing；The slag of monitoring reaction in real time, passes through regulation and control Ensure (a) and (b) two parameters, the slag after the completion of being reacted simultaneously；Corresponding (a)：The temperature of the reaction slag of cupric and iron Spend for 1320 DEG C；(b)：The basicity CaO/SiO of the reaction slag of cupric and iron₂Ratio is 0.8, in claimed range；Injection Natural gas, metal Ferrum content is 2.1% in slag.

Step 2, separation and recovery uses method three：9min is incubated, by slag natural subsidence after the completion of reaction, slag-gold separation Molten state copper-rich nickel phase, Fe-riched phase, Iron containing silicate minerals phase and zinc component and lead component are obtained, carries out following steps：(1) melt State copper-rich nickel phase, send converter；(2) molten state Fe-riched phase is specifically used with silicate mineral in the separation and recovery method one of step 2 Method F, after water quenching, the raw material as direct reduction iron making；(3) part zinc component, lead component, bismuth component and indium component are waved Hair, in the form of an oxide into fume recovery, Copper in Slag<0.1%, the rate of recovery of iron is 92%, and the rate of recovery of zinc is 93%, lead The rate of recovery be 93%, the accumulation rate of nickel is 94%, and the accumulation rate of cobalt is 96%, and golden accumulation rate is 91%, silver-colored accumulation rate For 93%.

Embodiment 8

Step 1, clinker mixes：Will by " making sulfonium technique " technique smelting furnace slag notch obtain melting nickel fibers slag, by " copper The melting nickel fibers slag that ice nickel convering " technique blowing slag obtains through dilution stove slag notch adds blast furnace, while adds by slagging tap The blast furnace slag and electric furnace slag that mouth obtains, form mixing slag；With the air that preheating temperature is 600 DEG C, injection granularity is 20mm Bituminous coal and coal dust, mixing slag is heated to molten condition, forms the reaction slag of cupric and iron, and it is mixed to realize reaction slag Close；The slag of monitoring reaction in real time, ensure (a) and (b) two parameters, the slag after the completion of being reacted simultaneously by regulation and control；It is right Answer (a)：The temperature of the reaction slag of cupric and iron is 1330 DEG C；(b)：The basicity CaO/SiO of the reaction slag of cupric and iron₂Than It is worth for 1.0, in claimed range；Metal Ferrum content is 1.3% in slag；

Step 2, separation and recovery uses method three：13min is incubated, by slag natural subsidence after the completion of reaction, slag-gold point From, copper-rich nickel phase and middle and upper part Iron containing silicate minerals phase are obtained, while generate containing zinc and leaded component, carry out following steps： (1) molten state Iron containing silicate minerals phase, smelting apparatus is poured into, carries out the outer slag treatment of stove, specifically separated and recovered using step 2 The method B of method one, middle and upper part slag is all returned to cupric and iron and reacts slag, as hot flux for metallurgy, adjustment cupric with Iron reacts slag composition, controls its temperature；(2) molten state copper-rich nickel phase, Fe-riched phase, are sent to converter or converting furnace；(3) part zinc Component, lead component volatilization, in the form of an oxide into fume recovery, Copper in Slag<0.1%, the rate of recovery of iron is 93%, and zinc returns Yield is 92%, and the rate of recovery of lead is 94%, and the sodium rate of recovery is 94%, and the potassium rate of recovery is 95%；The accumulation rate of nickel is 93%, cobalt Accumulation rate be 96%, golden accumulation rate be 93%, silver-colored accumulation rate be 95%.

Embodiment 9

Step 1, clinker mixes：Melting nickel of the smelting slag through sedimentation electric furnace slag notch acquisition will be produced by top-blown bath melting The melting nickel fibers slag joining side that metallurgical slag obtains with " nickel convering of copper ice " technique blowing slag through dilution stove slag notch blows back converter, The molten state blast furnace slag and VD slags obtained by slag notch is added simultaneously, forms mixing slag；Mixing slag is heated to molten State, the reaction slag of cupric and iron is formed, blowing preheated temperature is 400 DEG C of argon gas, slag is realized mixing；Monitoring reaction in real time Slag, ensure (a) and (b) two parameters, the slag after the completion of being reacted simultaneously by regulation and control；Corresponding (a)：Cupric and iron It is 1340 DEG C to react slag temperature；(b)：The reaction slag basicity CaO/SiO of cupric and iron₂Ratio is 1.2, is met the requirements； The char particle for being 20mm with air blown granularity, metal Ferrum content is 2.7% in slag；

Step 2, separation and recovery uses method two：35min is incubated, slag after the completion of reaction is subjected to following steps：(1) melt Melt state Iron containing silicate minerals and mutually pour into smelting apparatus, using step 2 separation and recovery method C, middle and upper part slag pours crystallite glass Glass；(2) bottom molten state copper-rich nickel phase, converter or converting furnace are sent to；(3) part zinc component, lead component component, with oxide shape Formula enters fume recovery, Copper in Slag<0.1%, the rate of recovery of iron is 94%, and the rate of recovery of zinc is 95%, and the rate of recovery of lead is 93%；The accumulation rate of nickel is 97%, and the accumulation rate of cobalt is 93%, and golden accumulation rate is 92%, and silver-colored accumulation rate is 93%.

Embodiment 10

Step 1, clinker mixes：

Smelting slag will be produced through settling the melting nickel fibers slag, " copper ice nickel that electric furnace slag notch obtains by top-blown bath melting The melting nickel fibers slag that blowing " technique blowing slag obtains through dilution stove slag notch by top-blown bath melting with producing smelting slag through heavy Drop the melting nickel fibers slag that electric furnace slag notch obtains and add thermal insulation pit, while add cold conditions slag, form mixing slag；With pre- Hot temperature is 1000 DEG C of oxygen-enriched air, is blown granularity≤150 μm bituminous coal, mixing slag is heated into molten condition, formation contains Copper reacts slag, and reaction slag is realized mixing；The slag of monitoring reaction in real time, ensures (a) and (b) two simultaneously by regulation and control Parameter, the slag after the completion of being reacted；

Corresponding (a)：The temperature of cupric reaction slag is 1430 DEG C；(b)：Cupric reacts the basicity CaO/SiO of slag₂Ratio For 1.3, in claimed range；Metal Ferrum content is 1.5% in slag；

Step 2, separation and recovery uses method five：

Slag after the completion of reaction is subjected to following steps：

(1) sedimentation cooling：42min is incubated, the slag after the completion of reaction naturally cools to room temperature, obtains slow cooling slag；Copper-rich Nickel is mutually deposited to the bottom of reaction unit, forms copper-rich nickel and sticks together；Iron containing silicate minerals mutually float；Copper-rich nickel phase metal sticks together and silicon Slow cooling slag is Fe-riched phase among hydrochlorate mineral, while generates component containing zinc and leaded component；

(2) separate：The copper-rich nickel that artificial taking-up is deposited in bottom sticks together, the raw material as Cu, Ni and Co separation；The rich iron at middle part Phase layer flotation, obtain nickel ore concentrate, copper concentrate, nickel alloy and iron ore concentrate；

(3) the Iron containing silicate minerals phase on top is manually taken out, silicate mine tailing is obtained, is used as cement raw material；

(4) part zinc component, lead component volatilization, in the form of an oxide into fume recovery, Copper in Slag<0.1%, iron returns Yield is 92%, and the rate of recovery of zinc is 94%, and the rate of recovery of lead is 93%；The accumulation rate of nickel is 95%, and the accumulation rate of cobalt is 96%, golden accumulation rate is 93%, and silver-colored accumulation rate is 94%.

The above described is only a preferred embodiment of the present invention, being not the limitation that other forms are done to the present invention, appoint What those skilled in the art changed or be modified as possibly also with the technology contents of the disclosure above equivalent variations etc. Imitate embodiment.But it is every without departing from technical solution of the present invention content, the technical spirit according to the present invention is to above example institute Any simple modification, equivalent variations and the remodeling made, still fall within the protection domain of technical solution of the present invention.

Claims

A kind of 1. method by the nickeliferous mixing slag recovery valuable component with iron, it is characterised in that it comprises the following steps：

S1, clinker mixing：Nickel fibers slag is added in melting reaction device, adds lead metallurgical slag, blast furnace slag, slag and ferroalloy One or more in slag, form mixing slag；Slag is heated to molten condition as reaction slag, is well mixed, in real time Monitoring reaction slag, while make mixed reaction slag by regulation and control while meet condition a and condition b, obtain reacted Slag；

Wherein, the condition a be control reaction slag temperature be 1050~1500 DEG C；

The condition b is the basicity CaO/SiO of control reaction slag₂Ratio=0.15~1.5；

S2, separation and recovery：The reacted slags of step S1,5~50min is incubated, slag gold separation settles, and obtains the richness of bottom Cupro-nickel phase, the Fe-riched phase of middle and lower part and the Iron containing silicate minerals phase of middle and upper part, while generate component containing zinc and leaded component Flue dust, the migration of gold and silver component, enrichment enter copper-rich nickel phase, and nickeliferous component, cobalt containing component migrate into copper-rich nickel phase and Fe-riched phase； Each phase is recycled.
2. the method as described in claim 1, it is characterised in that in the step S1, the method for the condition a regulation and control is：

When it is described reaction slag 1050 DEG C of temperature ＜, using the heating of reaction unit itself, or into slag add fuel or Nickel fibers slag, fusion of lead metallurgical slag, molten blast furnace slag, molten steel slag or the one or more for melting ferroalloy slag are melted, are sprayed into During fuel, while the oxidizing gas of preheating is sprayed into, the temperature of reaction slag is reached 1050~1500 DEG C；

As 1500 DEG C of the temperature ＞ of the reaction slag, nickel fibers slag, copper-containing substance are added into the reaction slag of cupric and iron One or more in material, blast furnace slag, slag, ferroalloy slag, flux for metallurgy, ferrous material or fluorine-containing material, it is well mixed, makes The temperature of the reaction slag of mixing reaches 1050~1500 DEG C；

The method of condition b regulation and control is：

As basicity CaO/SiO in the reaction slag₂Ratio<When 0.15, alkaline material and/or alkalescence are added into reaction slag Ferrous material；

As basicity CaO/SiO in the reaction slag₂Ratio>When 1.5, add acid material into reaction slag and/or acidity contains Iron material.
3. the method as described in claim 1, it is characterised in that the reaction unit is that attemperator or rotatable melting are anti- Answer device or the melting reaction device that can be flowed out with cinder notch or iron mouth slag；Wherein, the attemperator melts for dumpable Refining reaction slag fills or thermal insulation pit；

The rotatable melting reaction device is converter, melting reaction slag ladle；

The melting reaction device that can be flowed out with cinder notch or iron mouth slag is plasma heating furnace, direct current electric arc furnace, alternating current arc Stove, mineral hot furnace, blast furnace, blast furnace, induction furnace, furnace cupola, side-blowing bath smelting furnace, bottom blowing molten pool smelting furnace, top-blown bath melt Furnace, reverberatory furnace, Ausmelt furnace, Isa furnace, watt button can husband's bath smelting furnace, side-blown rotary furnace, bottom blowing rotary furnace, top blast time Converter.
4. the method as described in claim 1, it is characterised in that in the step S1, while meeting the condition a and b, It should simultaneously meet, control Cu oxide, nickel oxide, cobalt/cobalt oxide and ferriferous oxide in the reaction slag to be reduced to gold respectively Belong to copper, metallic nickel, metallic cobalt and FeO, metal Ferrum content in slag<3%.
5. the method as described in claim 1, it is characterised in that the nickel fibers slag be " matte smelting " technique caused by nickel melt The blowing slag after blowing slag, the blowing of " nickel convering of copper ice " technique after refining slag, the nickel convering of copper ice " technique blowing is through caused by dilution Ni-B alloy slag caused by dilution clinker, top blow smelting, Ni-B alloy slag caused by top blow smelting through electric furnace settle caused by sedimentation slag Middle one or more；The nickel fibers slag is molten state or cold conditions, wherein：Melting nickel fibers slag is obtained by nickel fibers stove slag notch , or nickel fibers slag is heated to molten condition；

The blast furnace slag, slag and ferroalloy slag are molten state, or cold conditions, wherein：Molten state clinker is obtained by slag notch, or will Cold conditions clinker is heated to molten condition；The slag be molten iron pre-desulfurization slag, vessel slag, electroslag, VOD/VAD slags, VD slags, in Between bag waste；The ferro-alloy cinder is caused clinker in ferroalloy production process, including smelts stove caused by carbon ferromanganese Slag, smelt clinker caused by ferrochrome, clinker caused by smelting ferronickel, clinker caused by smelting ferrovanadium, stove caused by smelting duriron Slag, smelt clinker caused by ferro-niobium, clinker caused by Smelting Ferromolybdenum.
6. method as claimed in claim 2, it is characterised in that the copper-contained material is blister copper copper fire refining slag, selects copper tail Ore deposit, copper ashes, zinc smelting dreg, zinc abstraction cigarette ash and dirt mud, Pb-Zn tailings, plumbum smelting slag, lead copper matte, setting form, lead bullion pyrogenic process Refining slag, lead smelt lead fume ash with dirt mud, lead-acid battery, Copper making cigarette ash and dirt mud, composition brass, cupric rubbish, containing copper circuit board, One or more in tin metallurgical slag, tailing；Wherein, the zinc smelting dreg is zinc hydrometallurgy and zinc smelting caused by pyrometallurgy of zinc Refine slag, including leached mud, iron vitriol slag, copper-cadmium slag, goethite slag, bloodstone slag, volatilization kiln slag, zinc vertical retorting slag, fuming slag, Blast furnace slag, vortex clinker, electric furnace zinc smelting slag；Leaded metallurgical slag is fuming furnace clinker and leaded smelting slag, " ISP lead zinc air blast Stove reduces " or " sintering deposit blast furnace reduction " or " solid-state high lead dross reduction " or the production of " liquid high lead dross reduction technique " reducing process Raw leaded smelting slag, leaded smelting slag is smelted by fuming furnace produces leaded fuming slag；The copper ashes is cupric smelting slag, contained One or more in copper converting slag, dilution waste, flotation tailings, wet type copper smelting slag, cupric smelting slag result from the pyrogenic process of copper " matte smelting " process of smelting process；The slag containing copper converting results from " Copper Matte Converting " mistake of the pyrometallurgical smelting process of copper Journey；Dilution waste is cupric smelting slag and waste after the dilution of slag containing copper converting, and flotation tailings is cupric smelting slag and contains copper converting Tailings after slag ore dressing；

The ferrous material is common iron ore concentrate, common iron ore concentrate DRI, common iron ore concentrate sintered ore deposit, common iron ore concentrate Pellet, common iron ore concentrate metallized pellet, the carbon containing pre-reduced pellet of common iron ore concentrate, slag, zinc smelting dreg, coke smelt cigarette Dirt and dirt mud, steel flue dust and dirt mud, nickeliferous metallurgical slag, copper ashes, lead metallurgical slag, zinc smelting dreg, tin metallurgical slag, red mud, removing sodium One or more in high calcium red mud, coal dust ash, pyrite cinder afterwards；The steel flue dust includes blast furnace gas mud with dirt mud drum, turned Furnace dust mud, electric furnace dust mud, heat or cold rolling sludge, sintering dust, pelletizing dust, go out ironworks dust, blast furnace dust, electric stove dust Ash, steel rolling iron scale；

The copper-contained material and ferrous material are hot or cold conditions, wherein hot material is direct by metallurgical furnace discharging opening or slag notch Obtain；Zinc Hydrometallurgy Residue, wet type copper smelting slag and dirt mud need to through being dehydrated, dry；

Described fluorine-containing material is fluorite, CaF₂Or the one or more in fluorine-containing blast furnace slag；

The fuel is the one or more in solid, liquid or gaseous fuel；The fuel is added in a manner of being blown or feeding intake Enter, during the injection, use and be loaded into oxidizing gas of the gas for preheating, the temperature of the preheating is 0~1200 DEG C；

Described alkaline material is pulverized limestone, red mud, after removing sodium in high calcium red mud, carbide slag, dolomite dust or calcium lime powder It is one or more of；Described alkaline ferrous material is CaO/SiO₂>=1 ferrous material, alkaline sintering deposit, alkaline iron ore concentrate, alkalescence One or more in pre-reduced pellet, alkalinous metal pellet, slag or blast furnace slag；The acid material is silica, containing gold One or more in silver-colored silica, flyash, gangue；Described iron-containing acidic material is CaO/SiO₂≤ 1 ferrous material, Acid sinter ore, acid iron ore concentrate, acid pre-reduced pellet, acid metal pellet, copper ashes, lead metallurgical slag, zinc smelting dreg, nickel One or more in metallurgical slag, tin metallurgical slag, ferroalloy slag, blast furnace slag.
7. method as claimed in claim 1 or 2, it is characterised in that the blast furnace slag, slag and ferroalloy slag be molten state or Cold conditions, the slag are to include desulfurization slag, desiliconization slag, molten iron pre-desulfurization slag, vessel slag, electroslag, the VOD/VAD of dephosphorized slag Slag, VD slags, tundish waste；The ferro-alloy cinder is caused clinker in ferroalloy production process, including smelts carbon manganese Clinker caused by iron, smelt clinker caused by ferrochrome, clinker caused by smelting ferronickel, clinker, smelting Si caused by smelting ferrovanadium Clinker caused by iron, smelt clinker caused by ferro-niobium, clinker caused by Smelting Ferromolybdenum.
8. such as the method any one of claim 1-7, it is characterised in that in the step S2 separation and recovery, carry out such as Lower processing：

Containing copper-rich nickel phase described in hot or cold conditions, converter or converting furnace or the raw material as the separation of copper cobalt nickel are sent to；

The component containing zinc and leaded component volatilization, in the form of an oxide into flue dust；

Nickeliferous component, cobalt containing component migrate into copper-rich nickel phase and Fe-riched phase；

Containing the Iron containing silicate minerals phase and/or the Fe-riched phase, any of following method A-G processing is carried out；

Method A：After water quenching or air cooling, directly as cement raw material；

Method B：It is molten that the part or all of molten state Iron containing silicate minerals phase and/or the Fe-riched phase return to the reaction Hot flux for metallurgy is used as in slag；

Method C：The Iron containing silicate minerals phase and/or the Fe-riched phase are used to pour devitrified glass or as mineral wool；

Method D：In Iron-containing silicate slag and/or the Fe-riched phase into melting reaction device, temperature is blown into as 0~1200 DEG C preheating oxidizing gas, and ensure slag temperature>1450℃；When slag ferrous oxide weight percent content<1%, obtain Slag after must aoxidizing；Slag Direct Air-Cooled or water quenching after the oxidation, as slag cements, cement regulator, cement life Additive or clinker in production；

Method E：For producing the clinker of high added value, method is as follows：

E-1, into the slag of Iron containing silicate minerals phase and/or the Fe-riched phase, add molten steel slag, lime, lime stone, iron One kind after alloy clinker, flyash, basic iron lean ore, bauxite, molten blast furnace slag, red mud, removing sodium in red mud or carbide slag Or it is several, it is sufficiently mixed, obtains slag mixed material；

Preheating temperature is blown into E-2, upward slag mixed material and is 0~1200 DEG C of oxidizing gas, and ensures that slag mixes Temperature of charge>1450℃；When ferrous oxide weight percent content<1%, the slag after being aoxidized；

E-3, to the slag after the oxidation, carry out air cooling or water quenching, the clinker of high added value be made；

Method F：The slag of the Iron containing silicate minerals phase and/or the Fe-riched phase is as blast furnace ironmaking raw material or direct-reduction Iron-smelting raw material：After Iron containing silicate minerals phase and/or the Fe-riched phase slag air cooling, water quenching or slow cooling, as blast furnace ironmaking or Direct reduction iron making raw material, after direct-reduction, using molten point of magnetic separation separation or electric furnace, magnetic separation product be metallic iron and mine tailing, electric Molten point of stove, product is molten iron and slag；

Method G：The Iron containing silicate minerals phase and/or the Fe-riched phase carry out reduction iron production, comprise the following steps：

G-1, ferrous material, reducing agent are added into molten state Iron containing silicate minerals phase and/or the Fe-riched phase slag, carried out Melting and reducing, the slag of monitoring reaction in real time, meet condition simultaneously by regulation and control：React the temperature of slag for 1350~1640 DEG C and React the basicity CaO/SiO of slag₂Ratio=0.6~2.4, the slag after the completion of being reacted；

Wherein, the method for temperature for controlling reaction slag is：

As 1350 DEG C of the temperature ＜ of reaction slag, by the heating of reaction unit itself, or fuel and preheating are added into slag Oxidizing gas, the temperature of reaction slag is reached 1350~1640 DEG C；

As 1640 DEG C of the temperature ＞ of reaction slag, added into reaction slag in flux for metallurgy, ferrous material or fluorine-containing material One or more, the temperature of reaction slag is set to reach 1350~1640 DEG C；Wherein, the flux for metallurgy is containing CaO or SiO₂'s Mineral；

The method of basicity for controlling reaction slag is：

When reacting basicity CaO/SiO in slag₂Ratio<When 0.6, alkaline material and/or alkaline ferrous material are added into slag；

When reacting basicity CaO/SiO in slag₂Ratio>When 2.4, acid material and/or iron-containing acidic material is added into slag；

The oxidizing gas into slag after 0~1200 DEG C of preheating of injection is also needed to be melted in G-2, the G-1 during melting and reducing Melt reduction, the slag formed after reduction；

G-3, separation and recovery：Using one kind in following methods：

Method I：Mixing slag after reduction is poured into insulation slag ladle, is cooled to room temperature, obtains slow cooling slag；Wherein, metallic iron sinks The bottom of reaction unit is dropped to, iron is formed and sticks together, by containing metal iron layer in remaining slow cooling slag, be crushed to 20~400 μm of granularity, grind Residual metallic iron and mine tailing are isolated in ore deposit, magnetic separation；

Method II：Mixing slag after reduction, cooling-sedimentation, slag-gold separation, obtain molten iron and the slag after reduction；It is described to go back Slag after original, slag treatment is carried out according to one or more of methods in method A~E；The molten iron, it is sent to converter or electric furnace Steel-making；

Or carry out water quenching or air cooling containing the Fe-riched phase layer or pour into attemperator slow cooling or combined through manual sorting with gravity treatment Obtain, cupro-nickel original is put forward as blast furnace nickel metallurgy iron material or direct-reduction nickel metallurgy iron material or iron making by smelting reduction ferronickel raw material or flotation Material；Float product is containing copper concentrate, nickel ore concentrate, dilval and iron ore concentrate, and iron ore concentrate is gone back as blast furnace ironmaking raw material or directly Former iron-smelting raw material or iron making by smelting reduction iron material；The Direct Reduction using rotary hearth furnace, tunnel cave, underbody road, shaft furnace, return Rotary kiln or induction furnace, using gas base or coal base reduction, gas-based reduction uses natural gas and/or coal gas, and coal base reduction is using smokeless One or more in coal, bituminous coal, lignite, coking coal, coke powder or coke, and it is 900~1400 DEG C to control reduction temperature, controls alkali Spend CaO/SiO₂Ratio=0.8~1.5.
9. method as claimed in claim 8, it is characterised in that the oxidizing gas is the air, oxygen, oxygen-enriched sky of preheating One kind in gas, nitrogen-air, argon gas-air, oxygen-nitrogen, oxygen-argon gas；

The reducing agent and the one or more that fuel is in solid, liquid or gaseous fuel, are sprayed in a manner of being blown or feeding intake Enter, the injection is loaded into gas as the one or more in the oxidizing gas, nitrogen or argon gas of preheating, the temperature of the preheating For 0~1200 DEG C；The solid fuel and one kind that reducing agent is in coal dust, coke powder, coke, flyash, bituminous coal or anthracite Or it is a variety of, granular or powdery is shaped as, granular material granularity is 5~25mm, and granular material granularity is≤150 μm, the liquid Fuel is heavy oil with reducing agent, and gaseous fuel and reducing agent are coal gas and/or natural gas.
10. the method as described in claim 1, it is characterised in that described to be well mixed to mix naturally in the step S1 Or be stirred, wherein the mode being stirred is argon gas stirring, nitrogen gas stirring, nitrogen-argon gas mixing gas agitating, reduction Property Gas Stirring, oxidizing gas stirring, the one or more in electromagnetic agitation or mechanical agitation；

It is described to be settled into natural subsidence or spun down or centrifugal sedimentation in the step S2；It is cold during progress cooling-sedimentation But mode is natural cooling or rotation cooling or centrifugation cooling, is separation by shaking table, chute point with gravity separation method during the separation Select or the two is combined.