CN105018735B - A kind of processing method of more metal alloy waste materials containing nickel cobalt - Google Patents
A kind of processing method of more metal alloy waste materials containing nickel cobalt Download PDFInfo
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Abstract
A kind of processing method of more metal alloy waste materials containing nickel cobalt, comprises the following steps：More metal alloy scrap meltings are formed into alloy melt；Containing at least one of nickel, cobalt metal in more metal alloy waste materials, and it is practically free of Mn and Si；Also containing the one or more in tungsten, molybdenum, vanadium in more metal alloy waste materials；Add material containing manganese and containing silicon materials, while be passed through oxygen-containing gas and carry out blowing slag making；The slag making of gained is separated from alloy melt；The alloy melt after slag making will be isolated and be atomized into alloy powder；At least containing 0.5% Mn elements in alloy powder；Obtained alloy powder is subjected to acidleach；The slag making of gained is leached with highly basic, reclaims valuable metal therein.The present invention has the advantages that the utilization of resources is abundant, raw material availability is high, body of heater service efficiency is high, cost is low, simple to operate, energy-conserving and environment-protective.
Description
Technical field
The present invention relates to chemical metallurgy technical field, more particularly to a kind of processing method of more metal alloy waste materials.
Background technology
Nickel (cobalt) is that have ferromagnetic strategy metal, in large quantities with alloy form be used for produce stainless steel, high temperature alloy,
Magnetic material and catalyst etc., applied to fields such as petrochemical industry, space flight, military project, electronics.As modern industry needs to nickel, cobalt
The continuous improvement asked, and nickel, cobalt mineral resources are increasingly poor, petrochemical industry, space flight, military project, waste and old caused by electronics industry urge
The alloyed scraps such as agent, high temperature alloy turn into the rare important secondary resource of nickel cobalt metal, and in such alloy except
Outside nickel, cobalt metal, also containing the infusibility dissipated metal such as tungsten, molybdenum, rhenium, vanadium, therefore, its comprehensive reutilization has important strategy
Meaning.
The roasting of the method that the metals such as nickel, cobalt at present, are reclaimed from nickel (cobalt) dead catalyst, mainly alkali (or blank roasting
Burn) Metals from Spent Catalysts cycling of elements is soluble-salt into molten by-water logging (alkali leaching) method or acid, the step lixiviation process of alkali two
Liquid, then further purification separation.Chinese invention patent such as Application No. 201110147614.9 discloses one kind and is related to
Nickel-containing catalyst recoverying and utilizing method, this method calcine dead catalyst containing nickel at 300 DEG C -600 DEG C of temperature, and the time, 2-3 was small
When, the organic matter of catalyst residual is removed, is then crushed, is leached using concentration 1.5-4.5mol/L nitric acid two level, with
Nickel nitrate solution form reclaims nickel.The Chinese invention patent of Application No. 201310204476.2 discloses a kind of dead catalyst gold
Belong to the method for synthetical recovery, first levigate to dead catalyst progress dilute sulfuric acid preimpregnation, pre- phase analysis is cured using the concentrated sulfuric acid, Curing material water
Leaching or diluted acid prepreg solution, which leach, carries alum, and slag acid adds proper amount of silica and iron powder progress pyrometallurgical smelting after carrying alum, obtains
Rich in nickel, cobalt, the sulfonium phase of molybdenum and slag phase containing aluminium, silicon, after two-phase laminated flow, sulfonium mutually using pressurized acid leaching go out to reclaim nickel therein,
Cobalt, molybdenum, the preimpregnation alum rate of recovery are more than 85%, and nickel, cobalt, molybdenum enter sulfonium rate and respectively reach 90%-94%, 9%-95%, 79%-
82%.The Chinese invention patent of Application No. 201510012009.9 discloses a kind of processing method of more metal alloys, will
First pressure leaching oxygen-enriched in sulfuric acid system, nickel and cobalt therein are extracted into solution to alloy, and leached mud uses after separation of solid and liquid
Sodium Hydroxide Alkaline pressure leaching tungsten vanadium therein.Above-mentioned processing method pre-processes without the melting of alloy, its maximum
Deficiency is：Fail to effectively improve the acid/base leaching performance of alloy, cause leaching condition more harsh, or need pressurization,
Roasting, or need to use and easily pollute nitric acid, hydrochloric acid of environment etc., cause complex operation, environmental pollution is serious, economy effect
Benefit is poor.
High temperature alloy is another important nickel, cobalt secondary resource, and the method for its conventional leaching recovery nickel cobalt has electrification
The methods of learning dissolving, pressurized acid leaching.Such as Liu Song exists《Inorganic chemicals industry》2nd phase in 1997 is elaborated using electrochemical dissolution
Method leaches the nickel cobalt in nickel base superalloy (Ni70%, Co 5%), and specifically using alloy as anode, copper sheet uses for negative electrode
YJ63 D.C. regulated power supplies have carried out electrochemical dissolution, and electrolyte uses hydrochloric acid system, concentration 4mol/L, current density 1000A/
m2, lysate composition Ni 60g/L, Co 4.3g/L.A kind of high temperature alloy of US2008/0110767Al U.S. Patent Publications
The method of electrochemical decomposition processing recovery valuable metal, high temperature alloy compositing range is Ni 50%-75%, Co, Cr, Al 3%-
15%, Ta, Nb, W, Mo, Re, Pt, Hg 1%-10%, anode, 15%-25% hydrochloric acid solutions or sulphur are specifically done with high temperature alloy
Acid/hydrochloric acid mixed solution is electrolyte.201210402385.5 a number Chinese invention patent discloses a kind of waste high-temperature alloy thing
The nickel of material and the leaching method of cobalt, first the waste high-temperature alloy containing nickel, cobalt is first melted in intermediate frequency furnace, then dusted, ball
Mill, and the nickel in diluted acid Selectively leaching alloy, cobalt in atmospheric conditions, obtain rich in nickel, the solution of cobalt, the invented technology compared with
Simply, nickel cobalt leaching rate is all higher than 98%, but Ni, Co content are still relatively low in filter residue, and according to correlative theses, (row defends east, Fan Xing
It is auspicious, Dong Hai is firm etc., the experimental study of leaching nickel cobalt from waste high-temperature alloy, Central South University's journal (natural science edition), 2014,
45(2)：361-366), nickel, cobalt content are respectively 6.77%, 0.96% in leached mud.The US2009/0255372Al U.S. is special
Profit application discloses a kind of high-temperature alloy waste material melting-fine grinding-leaching-magnetic separation separating technology, first by alloyed scrap and NaOH
And Na2SO4Deng flux and oxidant together smelting, Mo, W is converted into the sodium salt of solubility, and Co, Ni, Cu, Fe, Mn and
Cr keeps metallic state, and after material cooling, fine grinding water logging W, Mo, Re therein are extracted into solution, leached mud after separation of solid and liquid
Magnetic separation recovery Ni, Co therein, the melting process of the technique do not pass through slag making melting, realize Co, Ni, Cu, Fe, Mn, Cr
With Mo, V separation, i.e. the melting process of high-temperature operation just corresponds to alkali roasting transition process, is converted into Mo, V in alloy
Can water logging material.The deficiency of foregoing existing method essentially consists in：First, recovery rate of valuable metals is undesirable, magnetic separation is difficult to effectively
Recovery obtains high-purity N i, Co resource；First, flux price needed for melting is high, dosage is big, the deficiency in economic performance of technique.
In summary, although the method for the valuable metal such as recovery nickel cobalt of waste nickel (cobalt) alloy material processing at present is a variety of more
Sample, but unreasonable part all be present, recovery rate of valuable metals is undesirable, or operating condition is harsh, or less economical, safety and environmental protection
Risk is big, and therefore, suddenly a kind of technique to be developed is simple, synthetical recovery effect is good for this area, safety and environmental protection handling process.
The content of the invention
The technical problems to be solved by the invention are to overcome the shortcomings of to mention in background above technology and defect, there is provided one
The kind utilization of resources is abundant, raw material availability is high, body of heater service efficiency is high, low, simple to operate, energy-conserving and environment-protective the one kind of cost contains
The processing method of more metal alloy waste materials of nickel cobalt.
In order to solve the above technical problems, technical scheme proposed by the present invention is a kind of more metal alloy waste materials containing nickel cobalt
Processing method, comprise the following steps：
(1) more metal alloy scrap meltings are formed into alloy melt；Contain nickel, cobalt in more metal alloy waste materials
At least one of metal, and Mn and Si are practically free of, also containing one kind in tungsten, molybdenum, vanadium in more metal alloy waste materials
It is or a variety of；The process of more metal alloy scrap meltings is carried out using electric furnace, and preferable electric furnace is electric induction furnace；
(2) add material containing manganese and containing silicon materials, while be passed through oxygen-containing gas and carry out blowing slag making；
(3) slag making of gained is separated from alloy melt；
(4) alloy melt after slag making will be isolated and is atomized into alloy powder；At least contain 0.5% in the alloy powder
Mn elements to obtain the alloy powder containing MnO；
(5) obtained alloy powder is subjected to acidleach；
(6) slag making of gained is leached with highly basic (preferably with NaOH solution), reclaims the valuable gold such as tungsten therein, molybdenum, alum
Category.
Above-mentioned processing method, preferably：The material containing manganese by material containing Mn oxide, material containing manganese Metal, containing manganese
At least one of alloy material forms；It is furthermore preferred that the material containing Mn oxide is included in manganese dioxide, pyrolusite extremely
Few one kind；The material containing manganese Metal selects manganese metal；The material containing manganese alloy is selected in ferromanganese, manganese-silicon extremely
Few one kind.It is described to be made up of containing silicon materials at least one of oxide containing silicon material, silicon-containing alloy material；It is furthermore preferred that institute
State oxide containing silicon material and select silica；The silicon-containing alloy material selects manganese-silicon.The material containing manganese that the present invention adds, both
SiO can also can be simultaneously used as the oxidant of the metals such as tungsten, molybdenum, vanadium in more metal alloy waste materials2The slag former of reaction, lead to
The leaching performance of more metal alloys can be significantly improved by crossing addition material containing manganese.Further, since the present invention is used as the more golden of raw material
Belong to general not siliceous in alloyed scrap, in order to preferably obtain slag making, further preferably add it is a certain amount of containing silicon materials so as to containing
Manganese material is coordinated, and collectively acts as slag former.Certainly, manganese and silicon (such as manganese-silicon) may be contained in some materials simultaneously,
Slag making can be carried out as material containing manganese and containing silicon materials simultaneously by now adding a kind of material.
Above-mentioned processing method, preferably：Described when being passed through gas and carrying out blowing slag making, gas is to alloy melt inside
And/or surface is passed through, the gas preferably comprises at least one of air, oxygen, carbon dioxide, but not limited to this.It is passed through
The amount and flow velocity of gas are depending on the partial pressure of oxygen (oxygen gesture) in the severe degree of reaction in furnace and stove, under the conditions of suitable partial pressure of oxygen
Valuable metal nickel, cobalt in stove are hardly aoxidized, and most manganese and most tungsten, molybdenum, vanadium etc. can be then oxidized.Base
In our achievement in research, above-mentioned gas are passed through to alloy melt inside and/or surface, its most important purpose is to ensure subsequently
The alloy powder obtained during powder by atomization have loose and porous inner surface and it is in irregular shape the characteristics of, such alloy powder knot
Structure low intensity, surface-active point is more, specific surface area is big, and this significantly improves the leaching performance of alloy powder.Without being passed through gas
The obtained alloying pellet of the direct powder by atomization of alloy melt inside without gas hole, rule of surface is spherical, and structural strength is big, leaching
Go out poor performance.
Above-mentioned processing method, preferably：The alloy powder is by the alloy melt after the metals such as removing tungsten, molybdenum, vanadium
Using forming alloy melt atomization after high-pressure water jet, the content of wherein Mn elements is preferably 0.5%~20%, more preferably
0.5%~15%.And the Mn in alloy powder mainly exists in the form of MnO, the alloy powder of loose and porous structure is formed, and then
Play a part of reduction alloy powder structural strength as described above.
Above-mentioned processing method, preferably：The alloy melt after slag making will be isolated in the step (3) to continue in repetition
The step of stating (2)~(3) once more than, until the tungsten, molybdenum, the metal such as vanadium in alloy powder reach qualified horizontal requirement.
Above-mentioned processing method, preferably：The acidleach refers to carry out normal pressure leaching under sulfuric acid solution system.More preferably
, the dosage of the sulfuric acid is cobalt in alloy powder, 1.05 times~2.5 of theoretical amount needed for the whole leaching of nickel metallic element
Times, extraction temperature is more than 50 DEG C.Under the conditions of the preferable acidleach, nickel, the leaching rate of cobalt can be higher than 98%.Based on our grind
Study carefully achievement, it has been found that retain a certain amount of manganese in nickel, cobalt alloy melt, can obtained containing MnO's after powder by atomization
Alloyed powder, because Ni, Co of MnO and metallic state are immiscible, the structural strength of alloy powder can be significantly reduced, and then ensure acid
Acid solution quickly can be penetrated into inside alloy powder particle during leaching, accelerated Leach reaction and carried out, improve its leaching performance.
The technical scheme of the invention described above is based primarily upon following principle：We are using the stability of Mn oxide between more golden
This property between the stability of metal oxide such as the stability of nickel cobalt oxide and tungsten, molybdenum, vanadium in category alloyed scrap, I
Add material containing Mn first into more metallic alloy melts, and adjust the oxygen gesture in stove by being passed through oxygen-containing gas, closing
Under suitable oxygen potential condition, the part Mn in the metal such as tungsten, molybdenum, vanadium in alloy and additional material containing Mn is converted into oxide
Form, and now the nickel cobalt in alloy then exists still in the form of metallic state.We recycle material containing Mn and making containing silicon materials
Slag characteristic, appropriate material containing Mn and material containing Si are added into stove, obtains the MnO-SiO that fusing point is low, mobility is high2Blow slag
Type, the MnO-SiO2Clinker can dissolve the metal oxides such as tungsten, molybdenum, vanadium, but then immiscible with alloy state nickel cobalt, the slag type
Clinker is formed with metal oxides such as the tungsten, molybdenum, vanadium that trap, and floats on nickel cobalt alloy melt surface, reaches separation nickel cobalt
With the effect of the metal such as tungsten, molybdenum, vanadium.Based on this, the oxygen-containing gas being passed through in the present invention can both ensure the thing of step (2) addition
Mn and Si change into MnO and SiO respectively in material2, promote the MnO-SiO with metal oxides such as trapping tungsten, molybdenum, vanadium2Slag system
Formed, while alloy powder can also be facilitated to form loose porous mealy structure, so that follow-up acidleach is handled.
In the slag making that the present invention obtains, it is preferred that MnO/SiO2≥0.3.Blowing slag type under the conditions of this will have more
The properties such as the metal oxide dissolubilities such as significant low melting point, high fluidity, high tungsten, molybdenum, vanadium, ensure that the blowing of step (2) is made
Slag process is more smoothly carried out towards target.The present invention finally obtain containing the valuable metal oxide such as tungsten, molybdenum, vanadium
Slag making can be leached with strong base solutions such as NaOH, reclaim the valuable metals such as tungsten therein, molybdenum, alum.
Compared with prior art, the advantage of the invention is that：
(1) method of the invention may be such that existing various more metal alloy waste materials containing nickel cobalt are more filled first
Divide and effectively utilize, be advantageously implemented the efficient utilization of waste and old resource, more conform to the thinking of development of recycling economy；
(2) material containing Mn added in processing method of the present invention can play simultaneously tungsten in alloy, molybdenum, vanadium oxidant, with
SiO2The slag former of reaction, improve many-sided effect such as alloy leaching performance, have auxiliary material utilization rate high, body of heater uses effect
The advantages of rate is high；
(3) Mn and the conversion containing Si in silicon materials can release substantial amounts of heat in the material containing manganese that the present invention adds, or even reach
To the effect for maintaining furnace temperature, it reduce the energy resource consumption during reaction treatment, remarkable in economical benefits；
(4) present invention uses MnO-SiO2System's blowing slag type, has fusing point low, separates the metal such as nickel cobalt and tungsten, molybdenum, vanadium
The advantages of effect is good, operation is simple and reliable.
(5) present invention not only obtains the slag making of the valuable metals such as tungstenic, molybdenum, rhenium, vanadium, and can obtain having irregularly
The nickel cobalt alloy powder of loose porous pattern, also most of all, the alloy powder and the leaching performance of slag making are good, both
Product need not add catalyst in follow-up leaching process, avoid drawing for system other impurities and poisonous and harmful element
Enter, reduce the difficulty of follow-up each valuable metal separating-purifying, equipment is easily realized, mixed economy, the environment-friendly advantage ten of technique
Divide notable.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the required accompanying drawing used in technology description to be briefly described, it should be apparent that, drawings in the following description are the present invention
Some embodiments, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
These accompanying drawings obtain other accompanying drawings.
Fig. 1 is the process chart of the processing method of more metal alloy waste materials of the invention containing nickel cobalt.
Embodiment
For the ease of understanding the present invention, the present invention is made below in conjunction with Figure of description and preferred embodiment more complete
Face, meticulously describe, but protection scope of the present invention is not limited to embodiment in detail below.
Unless otherwise defined, the implication that all technical terms used hereinafter are generally understood that with those skilled in the art
It is identical.Technical term used herein is intended merely to describe the purpose of specific embodiment, is not intended to the limitation present invention
Protection domain.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the present invention can pass through city
Field is commercially available or can be prepared by existing method.
Embodiment 1：
A kind of processing method of more metal alloy waste materials containing nickel cobalt of the present invention as shown in Figure 1, comprises the following steps：
(1) more metal alloys are melted：More metal alloy waste materials of the present embodiment derive from dead catalyst pyrometallurgical smelting, its
Alloying component is Ni 19.12%, Co 2.50%, Fe 58.10%, Mo 8.72%, W 1.08%, V 2.30%；Using
50kg levels intermediate frequency furnace carries out blowing slag test, and more metal alloy waste material additions are 35kg, 1500 DEG C of smelting temperature；
(2) material containing manganese is added and containing silicon materials, the material containing manganese in the present embodiment uses manganese metal (Mn contents 99%),
Addition is 5.0kg, and silica (SiO is used containing silicon materials2Content 98%), an addition 9.32kg；Simultaneously to alloy
Inside melt and surface is passed through air and carries out blowing slag making；Air is passed through flow (2.5m3/ h) and flow velocity is passed through according in stove
Depending on partial pressure of oxygen, by controlling suitable partial pressure of oxygen the valuable metal nickel in stove, cobalt is hardly aoxidized, and manganese, tungsten in stove,
Other metals of molybdenum, vanadium are then oxidized；
(3) drag for slag 1 time, the slag making of gained is separated from alloy melt；MnO/SiO in blowing slag making2=1.58；
(4) alloy melt after slag making will be isolated and be atomized into alloy powder 26.92kg (dry meter)；The composition of alloy powder
In containing Ni 23.30%, Co 3.82%, Fe 60.12%, MnO 0.87%；
(5) obtained alloy powder is subjected to acidleach；Using sulfuric acid leaching, sulfuric acid dosage is needed for cobalt, nickel all leach
1.10 times of theoretical amount, 55 DEG C of extraction temperature, extraction time 6.0h, Ni, Co leaching rate are respectively 99.25%,
99.03%；
(6) slag making containing Mo, W, V of gained is leached with NaOH solution, 60 DEG C of extraction temperature, Mo, W, V rate of recovery
Respectively 96.80%, 96.62%, 97.00%.
Embodiment 2：
A kind of processing method of more metal alloy waste materials containing nickel cobalt of the present invention as shown in Figure 1, comprises the following steps：
(1) by more metal alloy scrap meltings：More metal alloy waste materials of the present embodiment derive from waste high-temperature alloy, its
Alloying component is Ni 62.72%, Co 8.54%, Fe 0.64%, Mo 1.65%, W 7.64%, Al 5.87%, Re
2.42%th, Nb 0.51%, Cr 4.77%；Blowing slag making, more metal alloy waste materials are carried out using 1000kg levels intermediate frequency furnace
Addition be 700kg, 1700 DEG C of smelting temperature；
(2) material containing manganese is added and containing silicon materials, the material containing manganese in the present embodiment uses pyrolusite (Mn contents
39.86%th, SiO213.33%), an addition is 40kg, and silica (SiO is used containing silicon materials2Content 98%), once add
Measure 30.15kg；The mixed gas for being passed through air and oxygen to alloy melt inside and surface simultaneously carries out blowing slag making；Air
(12m3/ h) and oxygen 5m3/ h) be passed through flow and be passed through flow velocity depending on the partial pressure of oxygen in stove, by controlling suitable oxygen
Pressure makes valuable metal nickel in stove, cobalt hardly aoxidize, and manganese, tungsten, molybdenum in stove, vanadium other metals are then oxidized；
(3) drag for slag 1 time, the slag making of gained is separated from alloy melt；
(4) alloy melt after slag making will be isolated to continue to repeat above-mentioned step (2)~(3) twice, until alloyed powder
The metals such as tungsten, molybdenum, vanadium in end reach qualified horizontal requirement；MnO/SiO in blowing slag making2=0.55；
(5) alloy melt after slag making will be isolated and be atomized into alloy powder 496.10kg (dry meter)；Alloy powder into
Containing Ni 70.80%, Co 13.33%, MnO 9.87% in point；
(6) obtained alloy powder is subjected to acidleach；Using sulfuric acid leaching, sulfuric acid dosage is needed for cobalt, nickel all leach
1.75 times of theoretical amount, 75 DEG C of extraction temperature, extraction time 1.0h, Ni, Co leaching rate is respectively 99.30%,
99.86%；
(7) slag making containing Mo, W, V, Re, Nb, Cr, Al of gained is leached with NaOH solution, 75 DEG C of extraction temperature,
Mo, W, V rate of recovery are respectively 97.25%, 97.19%, 96.85%.
Embodiment 3：
A kind of processing method of more metal alloy waste materials containing nickel cobalt of the present invention as shown in Figure 1, comprises the following steps：
(1) by more metal alloy scrap meltings：More metal alloy waste material compositions of the present embodiment are Ni 65.80%, Co
6.72%th, Mo 1.65%, W 9.00%, Al 6.53%, Re 2.23%, Ta 4.10%；Using 1000kg level Medium frequency inductions
Stove carries out blowing slag making, and the additions of more metal alloy waste materials is 700kg, 1700 DEG C of smelting temperature；
(2) material containing manganese is added and containing silicon materials, the material containing manganese in the present embodiment uses manganese metal (Mn contents 99%)
With manganese dioxide powder (MnO2Content 95%) mixture (mass ratio of the two be 3: 7), an addition is 30kg, siliceous thing
Material is using manganese-silicon (Mn 68%, Si 18%) and the mixture (SiO of silica2Content 98%), one time addition manganese silicon closes
Golden 10.0kg and silica 8.0kg；The mixed gas for being passed through nitrogen and oxygen to alloy melt inside and surface simultaneously is blown
Slag making；Nitrogen (8m3/ h) and oxygen 20m3/ h) be passed through flow and be passed through flow velocity depending on the partial pressure of oxygen in stove, pass through to control and close
Suitable partial pressure of oxygen makes valuable metal nickel in stove, cobalt hardly aoxidize, and manganese, tungsten, molybdenum in stove, vanadium other metals are then by oxygen
Change；
(3) drag for slag 1 time, the slag making of gained is separated from alloy melt；
(4) alloy melt after slag making will be isolated to continue to repeat above-mentioned step (2)~(3) twice, until alloyed powder
The metals such as tungsten, molybdenum, vanadium in end reach qualified horizontal requirement；MnO/SiO in blowing slag making2=2.85；
(5) alloy melt after slag making will be isolated and be atomized into alloy powder 512.0kg (dry meter)；The composition of alloy powder
In containing Ni 72.30%, Co 12.50%, MnO 3.60%；
(6) obtained alloy powder is subjected to acidleach；Using sulfuric acid leaching, sulfuric acid dosage is needed for cobalt, nickel all leach
1.45 times of theoretical amount, 90 DEG C of extraction temperature, extraction time 2.0h, Ni, Co leaching rate is respectively 99.42%,
99.56%；
(7) slag making containing Mo, W, Re, Ta of gained is leached with NaOH solution, 90 DEG C of extraction temperature, Mo, W, Re's
The rate of recovery is respectively 98.03%, 98.56%, 97.96%.
Claims (8)
1. a kind of processing method of more metal alloy waste materials containing nickel cobalt, comprises the following steps：
(1) more metal alloy scrap meltings are formed into alloy melt；Contain nickel, cobalt gold in more metal alloy waste materials
At least one of category, and it is practically free of Mn and Si；In more metal alloy waste materials also containing one kind in tungsten, molybdenum, vanadium or
It is a variety of；
(2) add material containing manganese and containing silicon materials, while be passed through oxygen-containing gas to alloy melt inside and/or surface and blown
Refine slag making；
(3) slag making of gained is separated from alloy melt, the slag making is MnO-SiO2Blow slag type, wherein MnO/SiO2≥
0.3；
(4) alloy melt after slag making will be isolated and alloy powder is atomized into using high-pressure water jet；Mn in the alloy powder
The content of element is 0.5%~15%, and the Mn parts in alloy powder exist in the form of MnO, form loose and porous structure
Alloy powder；
(5) obtained alloy powder is subjected to normal pressure acidleach under sulfuric acid solution system；
(6) slag making of gained is leached with highly basic, reclaims valuable metal therein；
Wherein, more metal alloys are one or both of nickel cobalt dead catalyst, high-temperature alloy waste material.
2. processing method according to claim 1, it is characterised in that：The process of more metal alloy scrap meltings is to adopt
Carried out with electric furnace.
3. processing method according to claim 1, it is characterised in that：The material containing manganese by material containing Mn oxide, contain
At least one of manganese Metal material, material containing manganese alloy form；The silicon materials that contain are by oxide containing silicon material, silicon-containing alloy
At least one of material forms.
4. processing method according to claim 3, it is characterised in that：Material containing Mn oxide includes manganese dioxide, soft manganese
At least one of ore deposit；The material containing manganese Metal selects manganese metal；The material containing manganese alloy is closed from ferromanganese, manganese silicon
At least one of gold；The oxide containing silicon material selects silica；The silicon-containing alloy material selects manganese-silicon.
5. according to processing method according to any one of claims 1 to 4, it is characterised in that：The gas that is passed through is blown
During slag making, the gas includes at least one of air, oxygen, carbon dioxide.
6. processing method according to claim 5, it is characterised in that：The intake of the gas and flow velocity is passed through according in stove
Partial pressure of oxygen depending on, by controlling suitable partial pressure of oxygen the valuable metal nickel in stove, cobalt is hardly aoxidized, and manganese in stove,
Other metals of tungsten, molybdenum, vanadium are then oxidized.
7. according to processing method according to any one of claims 1 to 4, it is characterised in that：It will be isolated in the step (3)
Alloy melt after slag making continue to repeat above-mentioned step (2)~(3) once more than, until tungsten, molybdenum, vanadium gold in alloy powder
Category reaches qualified horizontal requirement.
8. according to processing method according to any one of claims 1 to 4, it is characterised in that：The dosage of the sulfuric acid is alloy
1.05 times~2.5 times of theoretical amount needed for the whole leachings of cobalt, nickel metal in powder, extraction temperature is more than 50 DEG C.
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| CN201510505946.8A CN105018735B (en) | 2015-08-17 | 2015-08-17 | A kind of processing method of more metal alloy waste materials containing nickel cobalt |
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| CN201510505946.8A CN105018735B (en) | 2015-08-17 | 2015-08-17 | A kind of processing method of more metal alloy waste materials containing nickel cobalt |
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| CN105018735B true CN105018735B (en) | 2018-01-09 |
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