CN103233114A - Method for producing nickel/ferrum from nickel laterite ores - Google Patents

Method for producing nickel/ferrum from nickel laterite ores Download PDF

Info

Publication number
CN103233114A
CN103233114A CN2013101546263A CN201310154626A CN103233114A CN 103233114 A CN103233114 A CN 103233114A CN 2013101546263 A CN2013101546263 A CN 2013101546263A CN 201310154626 A CN201310154626 A CN 201310154626A CN 103233114 A CN103233114 A CN 103233114A
Authority
CN
China
Prior art keywords
nickel
red soil
iron
soil nickel
nickel ore
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2013101546263A
Other languages
Chinese (zh)
Inventor
章钦成
王�华
张兴泽
魏永刚
李博
宣汤校
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU XIYUAN METAL MATERIAL CO Ltd
Kunming University of Science and Technology
Original Assignee
JIANGSU XIYUAN METAL MATERIAL CO Ltd
Kunming University of Science and Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU XIYUAN METAL MATERIAL CO Ltd, Kunming University of Science and Technology filed Critical JIANGSU XIYUAN METAL MATERIAL CO Ltd
Priority to CN2013101546263A priority Critical patent/CN103233114A/en
Publication of CN103233114A publication Critical patent/CN103233114A/en
Pending legal-status Critical Current

Links

Abstract

The invention relates to a method for producing nickel/ferrum from nickel laterite ores, in particular relates to a fire-wet combined smelting method for metallization reducing roasting-separating of valuable metals, and belongs to the technical field of nickel laterite ore comprehensive utilization. The method comprises steps of: completing the metallization reducing roasting of the nickel laterite ores in a rotary kiln, and carrying out floatation, magnetic separation and reselection on roasted products so as to effectively separate the valuable metals. A fire method effectively combined with a wet method, and the method is a brand-new exploration and development of a nickel laterite ore resource comprehensive utilization technology. By implementing the technology, the energy consumption in a smelting process can be effectively reduced, the smelting production efficiency is increased, and the nickel laterite ore resource comprehensive utilization is realized.

Description

A kind of red soil nickel ore is produced the method for nickel/iron
Technical field
The present invention relates to a kind of red soil nickel ore and produce the method for nickel/iron, specifically is that a kind of fire of metallization reducing roasting-separating valuable metals is wet in conjunction with smelting process, belongs to red soil nickel ore comprehensive utilization technique field.
Background technology
Nickel is the important strategic resource, is widely used in fields such as special steel, plating, petrochemical catalyst, battery material.Nickel is mainly consumed in stainless steel production, and this demand accounts for 66% of global nickel total quantity consumed.2012, global stainless steel output reached 3,460 ten thousand t, increases by 2.6% on a year-on-year basis, and wherein China's stainless steel output reaches 1,530 ten thousand t, increases by 7.6% on a year-on-year basis, accounts for 45% of world's total amount, and China has become stainless steel production and consumption big country.Along with developing rapidly of stainless steel industry, the demand of nickel also rapidly increases.
Main employing nickel sulfide ore smelting both at home and abroad at present obtains metallic nickel, but the nickel sulfide ore reserves are limited and major part is developed.The reserves of red soil nickel ore are abundant in the world wide, and explored continental rise nickel resources reserves are about 2.3 hundred million t, and wherein red soil nickel ore accounts for 72.2%, and average grade is 1.28%.Ratio at nineteen fifty red soil nickel ore production nickel had only 15%, utilized the nickel of red soil nickel ore production to reach 48% of world's nickel output by 2010, estimated that this ratio in 2015 will rise to 57%.Therefore, can predict that the increase of the following nickel output in the world will be mainly derived from the exploitation of red soil nickel ore resource.
Red soil nickel ore can be divided into two types, and a kind of is the limonite type, is positioned at the top in mineral deposit, and iron height, nickel are low, and silicon, magnesium are lower, but cobalt contents is higher, and this ore should adopt hydrometallurgical processes to handle, and the slag that smelting ferronickel produces is used for the production of steel; Another kind is silicon magnesium type, is positioned at the bottom in mineral deposit, and silicon, Mg content are higher, and iron, cobalt contents are lower, but nickel content is higher, and this ore should adopt fire metallurgy process to handle, and produces the slag that ferronickel produces and can be used as material of construction and produce chemical fertilizer; The ore of transition of mediating can adopt pyrometallurgy, also can adopt hydrometallurgical processes.Aspect industrial application, smelting the most frequently used technology of red soil nickel ore both at home and abroad is rotary kiln-electrosmelting (RKEF) at present.Use the purpose of rotary kiln: be dry red soil nickel ore on the one hand, remove free water a large amount of in the red soil nickel ore and crystal water, be that red soil nickel ore is carried out to a certain degree prereduction on the other hand, guarantee that electric furnace provides the high-temperature calcination ore deposit sustainedly and stably and finishes the reduction of ferronickel oxide compound.The RKEF method is handled red soil nickel ore need consume a large amount of secondary energy-electric energy, is fit to the abundant place of electric power resource, and product generally can only obtain Rhometal, and is more single.Except the RKEF method, Japan's big rivers and mountains method is the technology model that the non-electric furnace of red soil nickel ore is produced ferronickel, this method adopts rotary kiln high temperature reduction roasting output granulated iron, but production temperature height (1350 ℃), the roasting process easy-sintering, produce waywardly, energy consumption is higher relatively, and this method does not obtain wide popularization and application at present.
In a word, at present the treatment technology of red soil nickel ore is all relatively more independent and single, and have smelting energy consumption height, problem such as recovery rate of valuable metals is low, added value of product is low.
Summary of the invention
The present invention is for overcoming the deficiencies in the prior art, provide a kind of red soil nickel ore to produce the method for nickel, iron, energy consumption and the production cost of red soil nickel ore smelting process have been reduced effectively, changed the deficiency that traditional pyrogenic attack red soil nickel ore can only obtain Rhometal, really realize the efficient utilization of red soil nickel ore resource, can be widely used in industrial production.
Technical scheme of the present invention be by pelletizingization and metallization technology red soil nickel ore to be realized preheating and metallization reducing roasting respectively in preheater and rotary kiln, product of roasting obtains metallic nickel, metallic iron, three kinds of products of Rhometal and tailings by flotation, magnetic separation, gravity treatment.Concrete steps comprise as follows:
(1) at first red soil nickel ore is carried out successively fragmentation, oven dry and fine grinding for the first time, prepare burden with carbonaceous reducing agent, additive then and mix, suppress, and under 150~250 ℃ condition, dry 0.5~2h again, material through again the oven dry after under 200~400 ℃ condition preheating 0.5~1.5h, reducing roasting 1~4h under 850~1250 ℃ condition obtains the reducing roasting product at last;
(2) product of roasting that obtains in the step (1) is cooled to fine grinding below 200 ℃, add flotation agent then in the product of roasting after the fine grinding and carry out flotation, the foam layer that obtains is metallic nickel, product is flotation dreg in the groove, flotation dreg is carried out obtaining metallic iron and magnetic separation slag after the magnetic separation again, at last the magnetic separation slag is carried out table concentration, cross side obtains tailings, vertically side obtains the ferronickel particle, reaches the purpose of scanning.
The composition of described red soil nickel ore is iron 10~50wt%, nickel 0.8~3wt%, magnesium oxide 3~35wt%, cobalt 0.02~0.2wt%.
Fine grinding in the described step (1) is that to be milled to particle diameter be 75~150 μ m with the red soil nickel ore after the oven dry for the first time.
Described batching is at first to be that carbonaceous reducing agent is evenly mixed with red soil nickel ore, and the carbonaceous reducing agent add-on is 8%~30% of red soil nickel ore quality, adds additive then and mixes, and the add-on of additive is 5~25% of red soil nickel ore quality.
Described carbonaceous reducing agent refers to one or more arbitrary proportion mixtures in bituminous coal, hard coal or the coke of carbon content more than 70wt%.
Described additive is one or more arbitrary proportion mixtures of silicon-dioxide, calcium oxide or Calcium Fluoride (Fluorspan).
Preheating is carried out then in the oven dry kiln dry in the compound of preparation compacting back in the described step (1) in preheater, puts into rotary kiln at last and carries out reducing roasting; 200~400 ℃ the flue gas that reducing roasting produces in the rotary kiln enters and carries out preheating in the preheater, and 150~250 ℃ the flue gas of discharging from preheater enters in the drying kiln dries; The flue gas of discharging in the preheater can also enter in the cloth bag and gather dust, the flue dust of collecting returns feed proportioning system and recycles, can continue on for drying kiln dry from the bag collection expellant gas, the flue dust (dry coal powder) that collection obtains is as the fuel of rotary kiln.Whole production technology has realized the maximum using of residual heat resources.
Product of roasting in the described step (2) is finely ground to below the granularity 75 μ m.
Described nickel flotation recovery rate is more than 91%, and iron recovery is more than 90%.
The purity of metallic nickel is more than 96% in the described product, the purity of metallic iron is more than 95%.
The tailings that obtains after the described gravity treatment can be recycled.
As shown in Figure 1, there are waste residue, waste water, exhaust gas discharging because traditional red soil nickel ore is smelted, exist energy consumption higher, and can only obtain the Rhometal product.In this technology, no harmful exhaust produces, the gravity treatment water cycle is used in the ore dressing, tailings can get utilization (pave the way, cement additire etc.), and fume afterheat has carried out the classification use, has realized the cascade utilization of the energy, metallization reducing roasting temperature lower (1350 ℃ of the maturing temperatures in the big rivers and mountains of Japan), significantly reduced energy consumption, roasting kiln is simple to operate, is difficult for the knot kiln.
The advantage that the present invention has compared with the prior art and positively effect:
(1) nickel, iron effectively can be separated acquisition metallic nickel, metallic iron product by flotation and magnetic separation after the fine grinding of red soil nickel ore reducing roasting product, two kinds of products all have good income, and traditional RKEF and traditional reducing roasting-magnetic separation technology only can obtain the Rhometal product, and comprehensive income is low;
(2) residual heat resources are fully used in technology;
(3) compare with RKEF technology, reduction temperature is low, is that main energy sources is supplied with the coal, and energy consumption significantly reduces, and compares with traditional reducing roasting-magnetic separation process and can obtain nickel, iron product respectively, realizes nickel, iron high efficiency separation.
Description of drawings
Fig. 1 is process flow sheet of the present invention.
Embodiment
Below in conjunction with embodiment and accompanying drawing the present invention is further described, but the invention is not restricted to the following stated scope.
Embodiment one: the step that the present embodiment red soil nickel ore is produced the method for nickel/iron is:
(1) at first red soil nickel ore (composition is iron 11wt%, nickel 2wt%, magnesium oxide 22.7wt%, cobalt 0.02wt%) is carried out successively fragmentation, for the first time the oven dry and fine grinding (to granularity be 110~130 μ m), preparing burden with carbonaceous reducing agent, additive then and mixing (at first is that carbonaceous reducing agent is evenly mixed with red soil nickel ore, the carbonaceous reducing agent add-on is 8% of red soil nickel ore quality, add additive then and mix, the add-on of additive is 5% of red soil nickel ore quality; Carbonaceous reducing agent refers to the arbitrary proportion mixture of bituminous coal, hard coal and the coke of carbon content more than 70wt%; Additive is silicon-dioxide), compacting, and under 180~200 ℃ condition, dry 1h again, material is through oven dry back preheating 1.5h under 350 ℃ condition again, reducing roasting 1h under 1250 ℃ condition obtains the reducing roasting product at last;
(2) be finely ground to below the granularity 70 μ m after being cooled to the reducing roasting product that obtains in the step (1) below 200 ℃, add flotation agent then in the reducing roasting product after the fine grinding and carry out flotation, the foam layer that obtains is metallic nickel, product is flotation dreg in the groove, again flotation dreg is carried out obtaining metallic iron and magnetic separation slag after the magnetic separation, at last the magnetic separation slag is carried out table concentration, cross side obtains tailings, and vertically side obtains the ferronickel particulate.The rate of recovery of nickel is 94.6%, and the rate of recovery of iron is 93.8%, metallic nickel purity 97.2% in the product, metallic iron purity 95.8%, nickeliferous 10.5wt%, iron content 78.6wt% in the alloy.
Embodiment two: the step that the present embodiment red soil nickel ore is produced the method for nickel/iron is:
(1) at first red soil nickel ore (composition is iron 10wt%, nickel 1.5wt%, magnesium oxide 25.6wt%, cobalt 0.2wt%) is carried out successively fragmentation, for the first time the oven dry and fine grinding (to granularity be 75~100 μ m), preparing burden with carbonaceous reducing agent, additive then and mixing (at first is that carbonaceous reducing agent is evenly mixed with red soil nickel ore, the carbonaceous reducing agent add-on is 10% of red soil nickel ore quality, add additive then and mix, the add-on of additive is 11% of red soil nickel ore quality; Carbonaceous reducing agent refers to bituminous coal and the anthracitic arbitrary proportion mixture of carbon content more than 70wt%; Additive is the arbitrary proportion mixture of silicon-dioxide, calcium oxide and Calcium Fluoride (Fluorspan)), the compacting, and in drying kiln, dry 0.5h again under 150~200 ℃ the condition, material through again the oven dry after under the condition of 200 ℃ of preheaters preheating 1.1h, reducing roasting 2h under the condition of 1000 ℃ in rotary kiln obtains the reducing roasting product at last; 200~300 ℃ the flue gas that reducing roasting produces in the rotary kiln enters and carries out preheating in the preheater, and 150~180 ℃ the flue gas of discharging from preheater enters in the drying kiln dries; The flue gas of discharging in the preheater can also enter in the cloth bag and gather dust, and the flue dust of collection returns feed proportioning system and recycles, and continues on for drying kiln dry from the bag collection expellant gas, and the flue dust that collection obtains is as the fuel of rotary kiln.
(2) the reducing roasting product that obtains in the step (1) being cooled to 200 ℃ is finely ground to below the granularity 75 μ m, add flotation agent then in the reducing roasting product after the fine grinding and carry out flotation, the foam layer that obtains is metallic nickel, product is flotation dreg in the groove, again flotation dreg is carried out obtaining metallic iron and magnetic separation slag after the magnetic separation, at last the magnetic separation slag is carried out table concentration, cross side obtains tailings, and vertically side obtains the ferronickel particulate.The rate of recovery of nickel is 93.2%, and the rate of recovery of iron is 91.7%, metallic nickel purity 95.7% in the product, metallic iron purity 94.9%, nickeliferous 12.3wt%, iron content 71.4wt% in the alloy.
By way of example three: the step that the present embodiment red soil nickel ore is produced the method for nickel/iron is:
(1) at first red soil nickel ore (composition is iron 12wt%, nickel 1.09wt%, magnesium oxide 29.8wt%, cobalt 0.03wt%) is carried out successively fragmentation, for the first time the oven dry and fine grinding (to granularity be 100~150 μ m), preparing burden with carbonaceous reducing agent, additive then and mixing (at first is that carbonaceous reducing agent is evenly mixed with red soil nickel ore, the carbonaceous reducing agent add-on is 30% of red soil nickel ore quality, add additive then and mix, the add-on of additive is 25% of red soil nickel ore quality; Carbonaceous reducing agent refers to the coke of carbon content more than 70wt%; Additive is Calcium Fluoride (Fluorspan)), compacting, and in drying kiln, dry 2h again under 250 ℃ the condition, material is through oven dry back preheating 0.5h under the condition of 400 ℃ of preheaters again, reducing roasting 4h under the condition of 850 ℃ in rotary kiln obtains the reducing roasting product at last; 350~400 ℃ the flue gas that reducing roasting produces in the rotary kiln enters and carries out preheating in the preheater, and 180~250 ℃ the flue gas of discharging from preheater enters in the drying kiln dries; The flue gas of discharging in the preheater can also enter in the cloth bag and gather dust, and the flue dust of collection returns feed proportioning system and recycles, and continues on for drying kiln dry from the bag collection expellant gas, and the flue dust that collection obtains is as the fuel of rotary kiln.
(2) after being cooled to 180 ℃, the reducing roasting product that obtains in the step (1) is finely ground to below the granularity 60 μ m, add flotation agent then in the reducing roasting product after the fine grinding and carry out flotation, the foam layer that obtains is metallic nickel, product is flotation dreg in the groove, again flotation dreg is carried out obtaining metallic iron and magnetic separation slag after the magnetic separation, at last the magnetic separation slag is carried out table concentration, cross side obtains tailings, and vertically side obtains the ferronickel particulate.The rate of recovery of nickel is 91.1%, and the rate of recovery of iron is 90.4%, metallic nickel purity 96.5% in the product, metallic iron purity 95.3%, nickeliferous 11.8wt%, iron content 73.6wt% in the alloy.
Embodiment four: the step that the present embodiment red soil nickel ore is produced the method for nickel/iron is:
(1) at first red soil nickel ore (composition is iron 50wt%, nickel 0.8wt%, magnesium oxide 3wt%, cobalt 0.02wt%) is carried out successively fragmentation, for the first time the oven dry and fine grinding (to granularity be 100~150 μ m), preparing burden with carbonaceous reducing agent, additive then and mixing (at first is that carbonaceous reducing agent is evenly mixed with red soil nickel ore, the carbonaceous reducing agent add-on is 10% of red soil nickel ore quality, add additive then and mix, the add-on of additive is 25% of red soil nickel ore quality; Carbonaceous reducing agent refers to bituminous coal and the hard coal arbitrary proportion mixture of carbon content more than 70wt%; Additive is the arbitrary proportion mixture of silicon-dioxide, calcium oxide and Calcium Fluoride (Fluorspan)), the compacting, and in drying kiln, dry 2h again under 220 ℃ the condition, material through again the oven dry after under the condition of 300 ℃ of preheaters preheating 1h, reducing roasting 4h under the condition of 900 ℃ in rotary kiln obtains the reducing roasting product at last; 300~380 ℃ the flue gas that reducing roasting produces in the rotary kiln enters and carries out preheating in the preheater, and 200~250 ℃ the flue gas of discharging from preheater enters in the drying kiln dries; The flue gas of discharging in the preheater can also enter in the cloth bag and gather dust, and the flue dust of collection returns feed proportioning system and recycles, and continues on for drying kiln dry from the bag collection expellant gas, and the flue dust that collection obtains is as the fuel of rotary kiln.
(2) after being cooled to 200 ℃, the reducing roasting product that obtains in the step (1) is finely ground to below the granularity 75 μ m, add flotation agent then in the reducing roasting product after the fine grinding and carry out flotation, the foam layer that obtains is metallic nickel, product is flotation dreg in the groove, again flotation dreg is carried out obtaining metallic iron and magnetic separation slag after the magnetic separation, at last the magnetic separation slag is carried out table concentration, cross side obtains tailings, and vertically side obtains the ferronickel particulate.The rate of recovery of nickel is 91.2%, and the rate of recovery of iron is 90.8%, metallic nickel purity 96.1% in the product, metallic iron purity 95 %, nickeliferous 11.1wt%, iron content 72.1wt% in the alloy.
Embodiment five: the step that the present embodiment red soil nickel ore is produced the method for nickel/iron is:
(1) at first red soil nickel ore (composition is iron 13wt%, nickel 3wt%, magnesium oxide 35wt%, cobalt 0.1wt%) is carried out successively fragmentation, for the first time the oven dry and fine grinding (to granularity be 120~150 μ m), preparing burden with carbonaceous reducing agent, additive then and mixing (at first is that carbonaceous reducing agent is evenly mixed with red soil nickel ore, the carbonaceous reducing agent add-on is 15% of red soil nickel ore quality, add additive then and mix, the add-on of additive is 20% of red soil nickel ore quality; Carbonaceous reducing agent refers to the arbitrary proportion mixture of bituminous coal, hard coal and the coke of carbon content more than 70wt%; Additive is the arbitrary proportion mixture of calcium oxide and Calcium Fluoride (Fluorspan)), the compacting, and in drying kiln, dry 1.5h again under 240 ℃ the condition, material through again the oven dry after under the condition of 400 ℃ of preheaters preheating 0.5h, reducing roasting 1h under the condition of 1200 ℃ in rotary kiln obtains the reducing roasting product at last; 200~400 ℃ the flue gas that reducing roasting produces in the rotary kiln enters and carries out preheating in the preheater, and 220~250 ℃ the flue gas of discharging from preheater enters in the drying kiln dries; The flue gas of discharging in the preheater can also enter in the cloth bag and gather dust, and the flue dust of collection returns feed proportioning system and recycles, and continues on for drying kiln dry from the bag collection expellant gas, and the flue dust that collection obtains is as the fuel of rotary kiln.
(2) after being cooled to 200 ℃, the reducing roasting product that obtains in the step (1) is finely ground to below the granularity 75 μ m, add flotation agent then in the reducing roasting product after the fine grinding and carry out flotation, the foam layer that obtains is metallic nickel, product is flotation dreg in the groove, again flotation dreg is carried out obtaining metallic iron and magnetic separation slag after the magnetic separation, at last the magnetic separation slag is carried out table concentration, cross side obtains tailings, and vertically side obtains the ferronickel particulate.The rate of recovery of nickel is 91 %, and the rate of recovery of iron is 90%, metallic nickel purity 95.5% in the product, metallic iron purity 94.3%, nickeliferous 11wt%, iron content 73.2wt% in the alloy.
Below by reference to the accompanying drawings the specific embodiment of the present invention has been done detailed description, but the present invention is not limited to above-mentioned embodiment, in the ken that those of ordinary skills possess, can also under the prerequisite that does not break away from aim of the present invention, make various variations.

Claims (8)

1. a red soil nickel ore is produced the method for nickel/iron, and it is as follows to it is characterized in that concrete steps comprise:
(1) at first red soil nickel ore is carried out successively fragmentation, oven dry and fine grinding for the first time, prepare burden with carbonaceous reducing agent, additive then and mix, suppress, and under 150~250 ℃ condition, dry 0.5~2h again, material through again the oven dry after under 200~400 ℃ condition preheating 0.5~1.5h, reducing roasting 1~4h under 850~1250 ℃ condition obtains the reducing roasting product at last;
(2) the reducing roasting product that obtains in the step (1) is cooled to fine grinding below 200 ℃, add flotation agent then in the reducing roasting product after the fine grinding and carry out flotation, the foam layer that obtains is metallic nickel, product is flotation dreg in the groove, again flotation dreg is carried out obtaining metallic iron and magnetic separation slag after the magnetic separation, at last the magnetic separation slag is carried out table concentration, cross side obtains tailings, and vertically side obtains the ferronickel particle.
2. red soil nickel ore according to claim 1 is produced the method for nickel/iron, and it is characterized in that: the composition of described red soil nickel ore is iron 10~50wt%, nickel 0.8~3wt%, magnesium oxide 3~35wt%, cobalt 0.02~0.2wt%.
3. red soil nickel ore according to claim 1 is produced the method for nickel/iron, it is characterized in that: the fine grinding in the described step (1) is that the red soil nickel ore after the oven dry for the first time is milled to particle diameter is 75~150 μ m.
4. red soil nickel ore according to claim 1 is produced the method for nickel/iron, it is characterized in that: described batching is at first to be that carbonaceous reducing agent is evenly mixed with red soil nickel ore, the carbonaceous reducing agent add-on is 8%~30% of red soil nickel ore quality, add additive then and mix, the add-on of additive is 5~25% of red soil nickel ore quality.
5. according to the method for claim 1 or 4 described red soil nickel ores production nickel/iron, it is characterized in that: described carbonaceous reducing agent refers to one or more arbitrary proportion mixtures of bituminous coal, hard coal or the coke of carbon content more than 70wt%.
6. according to the method for claim 1 or 4 described red soil nickel ores production nickel/iron, it is characterized in that: described additive is one or more arbitrary proportion mixtures of silicon-dioxide, calcium oxide or Calcium Fluoride (Fluorspan).
7. red soil nickel ore according to claim 1 is produced the method for nickel/iron, it is characterized in that: preheating is carried out then in the oven dry kiln dry in the compound of preparation compacting back in the described step (1) in preheater, puts into rotary kiln at last and carries out reducing roasting; 200~400 ℃ the flue gas that reducing roasting produces in the rotary kiln enters and carries out preheating in the preheater, and 150~250 ℃ the flue gas of discharging from preheater enters in the drying kiln dries; The flue gas of discharging in the preheater can also enter in the cloth bag and gather dust, and the flue dust of collection returns feed proportioning system and recycles, and continues on for drying kiln dry from the bag collection expellant gas, and the flue dust that collection obtains is as the fuel of rotary kiln.
8. red soil nickel ore according to claim 1 is produced the method for nickel/iron, and it is characterized in that: the product of roasting in the described step (2) is finely ground to below the granularity 75 μ m.
CN2013101546263A 2013-04-28 2013-04-28 Method for producing nickel/ferrum from nickel laterite ores Pending CN103233114A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2013101546263A CN103233114A (en) 2013-04-28 2013-04-28 Method for producing nickel/ferrum from nickel laterite ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2013101546263A CN103233114A (en) 2013-04-28 2013-04-28 Method for producing nickel/ferrum from nickel laterite ores

Publications (1)

Publication Number Publication Date
CN103233114A true CN103233114A (en) 2013-08-07

Family

ID=48881178

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2013101546263A Pending CN103233114A (en) 2013-04-28 2013-04-28 Method for producing nickel/ferrum from nickel laterite ores

Country Status (1)

Country Link
CN (1) CN103233114A (en)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103537366A (en) * 2013-11-12 2014-01-29 攀枝花环业冶金渣开发有限责任公司 Method for recycling high grade iron from blast furnace dry slag
CN103937963A (en) * 2014-04-24 2014-07-23 中国恩菲工程技术有限公司 Laterite ore roasting method
CN104120263A (en) * 2014-07-25 2014-10-29 李成武 High-solid-gas-ratio rotary kiln direct reduction method for nickel iron smelting
CN106636670A (en) * 2016-12-12 2017-05-10 山西环能工程项目管理有限公司 System and method for preparing ferronickel from laterite-nickel ore
CN106661668A (en) * 2014-08-01 2017-05-10 住友金属矿山株式会社 Method for smelting nickel oxide ore
CN106824552A (en) * 2016-12-21 2017-06-13 广西睿桂涵农业有限公司 A kind of beneficiation method of lateritic nickel ore
CN106893875A (en) * 2017-03-16 2017-06-27 辽宁科技大学 A kind of method using magnetic separation treatment lateritic nickel ore is reduced directly
CN107233887A (en) * 2017-06-09 2017-10-10 太原理工大学 A kind of preparation method and application of the catalyst of hydrogenation of dinitro toluene synthesis toluencediamine
WO2017185946A1 (en) * 2016-04-26 2017-11-02 上海鑫和镍业科技有限公司 Method for processing low-grade laterite nickel ore and beneficiation method therefor
US10323297B2 (en) 2014-07-15 2019-06-18 Sumitomo Metal Mining Co., Ltd. Method for producing pellet and method for smelting nickel oxide ore
CN111172384A (en) * 2020-01-17 2020-05-19 北京矿冶科技集团有限公司 Method for reducing, enriching and recycling nickel and cobalt from nickel and cobalt multi-metal oxide ore

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA848377A (en) * 1970-08-04 Stojsic Aleksandar Method for producing of nickel concentrate from lateritic ores
CN101020957A (en) * 2006-12-22 2007-08-22 昆明贵金属研究所 Process of fast reducing carbon-containing red mud nickel ore pellet to beneficiate nickel in a bottom rotating furnace
CN101403043A (en) * 2008-10-27 2009-04-08 昆明理工大学 Method for producing ferronickel granule with direct reduction of laterite nickel mine with rotary kiln
CN101514401A (en) * 2009-03-18 2009-08-26 中南大学 Method for efficiently concentrating cobalt and nickel from low-grade nickeliferous laterite ore
CN101538645A (en) * 2008-03-20 2009-09-23 张建宏 Technique for roasting and dressing laterite nickel ore
CN101550483A (en) * 2009-04-28 2009-10-07 云南锡业集团(控股)有限责任公司 Combined flow path processing method of laterite nickel
CN102134656A (en) * 2011-01-06 2011-07-27 昆明理工大学 Method for fluidized drying and synchronous pre-reduction of laterite-nickel ore
CN102367512A (en) * 2011-09-07 2012-03-07 王号德 Method for deep reduction and magnetic separation of nickel and iron in lateritic nickel ore carbon-containing pellets

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA848377A (en) * 1970-08-04 Stojsic Aleksandar Method for producing of nickel concentrate from lateritic ores
CN101020957A (en) * 2006-12-22 2007-08-22 昆明贵金属研究所 Process of fast reducing carbon-containing red mud nickel ore pellet to beneficiate nickel in a bottom rotating furnace
CN101538645A (en) * 2008-03-20 2009-09-23 张建宏 Technique for roasting and dressing laterite nickel ore
CN101403043A (en) * 2008-10-27 2009-04-08 昆明理工大学 Method for producing ferronickel granule with direct reduction of laterite nickel mine with rotary kiln
CN101514401A (en) * 2009-03-18 2009-08-26 中南大学 Method for efficiently concentrating cobalt and nickel from low-grade nickeliferous laterite ore
CN101550483A (en) * 2009-04-28 2009-10-07 云南锡业集团(控股)有限责任公司 Combined flow path processing method of laterite nickel
CN102134656A (en) * 2011-01-06 2011-07-27 昆明理工大学 Method for fluidized drying and synchronous pre-reduction of laterite-nickel ore
CN102367512A (en) * 2011-09-07 2012-03-07 王号德 Method for deep reduction and magnetic separation of nickel and iron in lateritic nickel ore carbon-containing pellets

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103537366A (en) * 2013-11-12 2014-01-29 攀枝花环业冶金渣开发有限责任公司 Method for recycling high grade iron from blast furnace dry slag
CN103537366B (en) * 2013-11-12 2015-10-28 攀枝花环业冶金渣开发有限责任公司 The method of high grade iron is reclaimed from blast furnace dry slag
CN103937963A (en) * 2014-04-24 2014-07-23 中国恩菲工程技术有限公司 Laterite ore roasting method
CN103937963B (en) * 2014-04-24 2016-08-24 中国恩菲工程技术有限公司 Laterite method of roasting
US10323297B2 (en) 2014-07-15 2019-06-18 Sumitomo Metal Mining Co., Ltd. Method for producing pellet and method for smelting nickel oxide ore
CN104120263A (en) * 2014-07-25 2014-10-29 李成武 High-solid-gas-ratio rotary kiln direct reduction method for nickel iron smelting
CN106661668A (en) * 2014-08-01 2017-05-10 住友金属矿山株式会社 Method for smelting nickel oxide ore
US10041144B2 (en) 2014-08-01 2018-08-07 Sumitomo Metal Mining Co., Ltd. Method for smelting nickel oxide ore
WO2017185946A1 (en) * 2016-04-26 2017-11-02 上海鑫和镍业科技有限公司 Method for processing low-grade laterite nickel ore and beneficiation method therefor
CN106636670A (en) * 2016-12-12 2017-05-10 山西环能工程项目管理有限公司 System and method for preparing ferronickel from laterite-nickel ore
CN106824552B (en) * 2016-12-21 2019-05-14 广西睿桂涵农业有限公司 A kind of beneficiation method of lateritic nickel ore
CN106824552A (en) * 2016-12-21 2017-06-13 广西睿桂涵农业有限公司 A kind of beneficiation method of lateritic nickel ore
CN106893875A (en) * 2017-03-16 2017-06-27 辽宁科技大学 A kind of method using magnetic separation treatment lateritic nickel ore is reduced directly
CN107233887A (en) * 2017-06-09 2017-10-10 太原理工大学 A kind of preparation method and application of the catalyst of hydrogenation of dinitro toluene synthesis toluencediamine
CN107233887B (en) * 2017-06-09 2020-10-13 太原理工大学 Preparation method and application of catalyst for synthesizing toluenediamine by hydrogenating dinitrotoluene
CN111172384A (en) * 2020-01-17 2020-05-19 北京矿冶科技集团有限公司 Method for reducing, enriching and recycling nickel and cobalt from nickel and cobalt multi-metal oxide ore

Similar Documents

Publication Publication Date Title
CN103233114A (en) Method for producing nickel/ferrum from nickel laterite ores
CN101413055B (en) Process for directly preparing nickel-iron alloy powder from laterite-nickel ore
CN102719676B (en) Method for rapidly reducing copper slags to produce iron-copper alloys in kiln in reducing atmosphere
CN101403043A (en) Method for producing ferronickel granule with direct reduction of laterite nickel mine with rotary kiln
CN101418389B (en) Method for directly reducing grain nickel iron in rotary kiln by using laterite nickle mine
CN106987673B (en) A kind of method that selecting smelting combination is enriched with niobium from titaniferous ferro-niobium concentrate
CN101323904A (en) Method for enriching nickel iron ore concentrate from laterite type nickel ore by means of rotary kiln
CN103740933B (en) A kind of method of nickel oxide material production Rhometal
CN102534194A (en) Method for producing ferronickel from lateritic nickel ores
CN102162017A (en) Method for comprehensively utilizing paigeite by rotary hearth furnace iron bead process
CN102021351A (en) Integrated approach to enriching nickel from nickel oxide laterite ore
CN101550483A (en) Combined flow path processing method of laterite nickel
CN103276219B (en) Clean production method for treating waste residues of reduction roasting nickel laterite ore to prepare ferronickel
CN102373329A (en) Method for gathering nickel and iron from laterite-nickel ores
CN101787407B (en) Method for reducing and extracting copper smelting waste slag through microwave carbon heating
CN101967571B (en) Method for using red-soil nickel ore to produce nickel-iron alloy in tunnel kiln-electric furnace
CN101879599A (en) Method for preparing reductive iron powder and high-purity refined iron powder by using iron ores
CN103866115B (en) The preparation of red soil nickel ore single stage method is containing the method for nickel and stainless steel raw material
CN102424875B (en) Method for preparing sponge iron from sulfate cinder
CN103572059A (en) Method for producing sponge iron and cement by using iron-containing materials through reduction and recovering valuable elements
CN103555930A (en) Method for reduction roasting of high-magnesium poor-quality nickel laterite
CN103602773B (en) Method for comprehensive utilization of paigeite through direct reduction-electric furnace melting separation of rotary hearth furnace
CN102168159B (en) Reducing agent for carrying out direct reduction roasting on limonite and hematite to produce reduced iron
CN103757200B (en) A kind of method of red soil nickel ore separation and concentration ferronickel
CN102268502B (en) Spongy iron preparation method by smelting refractory iron ore (slag) with reduction rotary kiln

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20130807