CN107460332A - A kind of method of copper ashes comprehensive utilization - Google Patents

A kind of method of copper ashes comprehensive utilization Download PDF

Info

Publication number
CN107460332A
CN107460332A CN201710630382.XA CN201710630382A CN107460332A CN 107460332 A CN107460332 A CN 107460332A CN 201710630382 A CN201710630382 A CN 201710630382A CN 107460332 A CN107460332 A CN 107460332A
Authority
CN
China
Prior art keywords
sio
copper ashes
naco
calcining materials
solution
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
CN201710630382.XA
Other languages
Chinese (zh)
Inventor
边妙莲
陈士朝
马冬阳
孙辉
吴道洪
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 Province Metallurgical Design Institute Co Ltd
Original Assignee
Jiangsu Province Metallurgical Design Institute Co Ltd
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 Province Metallurgical Design Institute Co Ltd filed Critical Jiangsu Province Metallurgical Design Institute Co Ltd
Priority to CN201710630382.XA priority Critical patent/CN107460332A/en
Publication of CN107460332A publication Critical patent/CN107460332A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/04—Working-up slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B13/00—Making spongy iron or liquid steel, by direct processes
    • C21B13/14—Multi-stage processes processes carried out in different vessels or furnaces
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B1/00—Preliminary treatment of ores or scrap
    • C22B1/14—Agglomerating; Briquetting; Binding; Granulating
    • C22B1/16—Sintering; Agglomerating
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
    • C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
    • C22B7/006—Wet processes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00—Technologies related to metal processing
    • Y02P10/20—Recycling

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Metallurgy (AREA)
  • Manufacturing & Machinery (AREA)
  • Materials Engineering (AREA)
  • Organic Chemistry (AREA)
  • Geology (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Environmental & Geological Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Manufacture And Refinement Of Metals (AREA)
  • Processing Of Solid Wastes (AREA)

Abstract

The present invention discloses a kind of method of copper ashes comprehensive utilization, including step：By copper ashes and NaCO3After well mixed, calcined at 1350~1400 DEG C, obtain calcining materials and CO2Gas, copper ashes and NaCO3Mass ratio be 1:(0.9~1.2)；Calcining materials cooling is broken, obtain broken calcining materials；Filtered after broken calcining materials are carried out into water logging, obtain Na2SiO3Solution and ferrous material；After ferrous material is dried, reduction reaction occurs in the environment of being 800~900 DEG C in temperature with also Primordial Qi, obtains reduced iron；Magnetic separation is carried out to reduced iron, obtains iron powder and tailings.Method of the invention it is achieved that the zero release of pollutant of copper ashes processing procedure, environment protecting is obvious, and waste utilization generates very high economic value.

Description

A kind of method of copper ashes comprehensive utilization
Technical field
The invention belongs to metallurgical material technical field, more particularly to a kind of method of copper ashes comprehensive utilization.
Background technology
Copper ashes contain Cu-S ore caused by referring to during pyrometallurgical smelting, and copper production in China's is based on pyrogenic process, copper smelting by pyrometallurgy 1t copper is produced by output 2~3t clinkers.The annual output of copper ashes is very big, plus the accumulation of decades, enormous amount.Copper ashes contains Iron, better than the grade of domestic industry ore dressing iron ore, because copper mine source is different, also contains between 30~40% in copper ashes The valuable metals such as cobalt, nickel, zinc or heavy metal element, comprehensive extraction and application value are higher so that the utilization of copper smelting slag receives extensively General concern.
Iron in copper ashes is mainly distributed in olivine and magnetic iron oxide two-phase, and optional magnetic oxygenated iron mineral is few, And the two mutual embedding cloth, granularity is smaller, and it is difficult to carry out to make magnetic separation process, the low yield of traditional ore-dressing technique gained iron ore concentrate, contains Silicon amount is seriously higher, cost is high, of poor quality, can not use, and causes the copper utilization rate of current copper smelting slag less than 12%, and iron utilizes Rate is less than 1%.Because the particularity of copper ashes valuable mineral structure increases the difficulty of pyrogenic process and hydrometallurgy, iron can not all be entered Row high efficiente callback.
The processing method of existing waste copper slag can not make copper ashes obtain sufficiently effectively utilizing, and some even produces pollution Solid waste.
The content of the invention
For above-mentioned deficiency, the present invention provides a kind of method of copper ashes comprehensive utilization, comprises the following steps：
A, by copper ashes and NaCO3After well mixed, calcined at 1350~1400 DEG C, obtain calcining materials and CO2Gas Body, the copper ashes and NaCO3Mass ratio be 1:(0.9~1.2)；
The calcining materials are cooled down to broken, acquisition broken calcining materials B,；
C, filtered after the broken calcining materials being carried out into water logging, obtain Na2SiO3Solution and ferrous material；
D, after the ferrous material is dried, reduced in the environment of being 800~900 DEG C in temperature with also Primordial Qi Reaction, obtains reduced iron；
E, magnetic separation is carried out to the reduced iron, obtains iron powder and tailings.
As preferred embodiments of the present invention, in the step A, heated up by 35~50 DEG C/min during calcining, temperature is risen to 1350~1400 DEG C.
Further, after temperature being risen into 1350~1400 DEG C during the calcining, it is incubated 20~30min.
As preferred embodiments of the present invention, reduction gas bag in the step D includes hydrogen, carbon monoxide, coke-stove gas It is one or more of.
As preferred embodiments of the present invention, in the step D, the time of reduction reaction is 40~60min.
As preferred embodiments of the present invention, the tailings obtained in step E can be as the adjusting material of production rock wool.
As preferred embodiments of the present invention, the CO that step A is obtained2Gas is passed through Na2SiO3Solution, CO2With Na2SiO3Hair Raw reaction, generates NaCO3Solution and SiO2Sediment.
Further, by the NaCO3After solution is dried, the NaCO of acquisition3For in the step A, being mixed with copper ashes.
Further, by SiO2Reclaimed after drying precipitate.
As preferred embodiments of the present invention, in the step B, particle diameter≤150 μm of calcining materials are crushed.
The method of copper ashes comprehensive utilization provided by the invention, technological process is compact, carries out classification processing to copper ashes, can obtain The SiO of high-purity2；Additive NaCO3Sodium carbonate reusable edible, save raw materials for production；The iron powder of production can be used for making steel, tail Adjusting material of the slag as rock wool；So that copper ashes is fully used, technological process realizes zero-emission, can obtain good warp Ji benefit.
Brief description of the drawings
Fig. 1 is the process chart of the embodiment of the present invention；
Fig. 2 is the flow chart that the embodiment of the present invention selects particular device to be produced.
Embodiment
Below in conjunction with drawings and examples, the embodiment of the present invention is described in more details, so as to energy The advantages of enough more fully understanding the solution of the present invention and its various aspects.However, specific embodiments described below and implementation Example is for illustrative purposes only, rather than limitation of the present invention.
The present invention is carried out except silicon carries iron first using copper ashes as raw material, and sodium carbonate (Na is added into copper ashes2CO3), high temperature is forged Na is generated after burning2SiO3Deng material, water is dissolved in after product cooling after calcining is crushed, Na2SiO3It is dissolved in the aqueous solution, will calcines Shi Shengcheng CO2It is passed through Na2SiO3In the aqueous solution, the SiO2 dried recovereds of generation, Na2CO3Reusable edible after drying, with copper ashes Continue calcining generation Na2SiO3.Part not soluble in water is dried after wherein calcining, and afterwards into fluid bed reduction, obtains gold Belong to the reduced iron of rate more than 90%, by slag sluicing system after reduced iron magnetic separation, content is mainly MgO and CaO in tailings, Ke Yizuo For rock wool adjusting material.
Specifically, as shown in figure 1, the method for comprehensive utilization copper ashes provided in an embodiment of the present invention, comprises the following steps：
1st, by copper ashes and NaCO3After well mixed, calcined at 1350~1400 DEG C, obtain calcining materials and CO2Gas Body, copper ashes and NaCO3Mass ratio be 1:(0.9~1.2).
The 2nd, calcining materials are cooled down to broken, the broken calcining materials of acquisition, crush particle diameter≤150 μm of calcining materials.
3rd, filtered after broken calcining materials being carried out into water logging, obtain Na2SiO3Solution and insoluble matter, insoluble matter are iron content Material.
4th, it is anti-that reduction occurs after ferrous material is dried, in the environment of being 800~900 DEG C in temperature with also Primordial Qi Should, the time is 40~60min, obtains reduced iron.
5th, magnetic separation is carried out to reduced iron, obtains iron powder and tailings；Iron powder is directly used in steel-making, and tailings is as production rock wool Adjusting material.
6th, the CO for obtaining step 12Gas is passed through Na2SiO3Solution, CO2With Na2SiO3React, generate NaCO3It is molten Liquid and SiO2Sediment.
7th, by NaCO3After solution is dried, the NaCO of acquisition3For in step 1, being mixed with copper ashes.
8th, by SiO2Reclaimed after drying precipitate, SiO2Available for other industrial uses.
Preferably, in step 1, when being calcined to material, calcining heat is heated up by 35~50 DEG C/min, and temperature is risen to After 1350~1400 DEG C, 20~30min is incubated.
In step 4, reduction gas bag includes the one or more of hydrogen, carbon monoxide, coke-stove gas.
The method of copper ashes comprehensive utilization provided by the invention, realizes the cleaning treatment of copper ashes, environment protecting is good, zero-emission Put, both realized the effective recycling of resource, reduced environmental pollution, also achieve good economic benefit.
Embodiment 1
As shown in Fig. 2 the present embodiment has selected specific equipment to handle copper ashes, the chemical composition of copper ashes is shown in Table 1.
The copper ashes chemical composition of table 1, wt%
This implementation handles the flow of copper ashes：
1st, by 100 parts of copper ashes and 120 parts of NaCO3It is well mixed, it is sent into heating furnace and is calcined, by 35~40 DEG C/min Heating, 25min is incubated after being warming up to 1350 DEG C, obtains calcining materials and CO2Gas.
The 2nd, calcining materials are cooled down to broken, the broken calcining materials of acquisition, crush particle diameter≤150 μm of calcining materials.
3rd, broken calcining materials are carried out into water logging in water immersion fully to dissolve, Na2SiO3Water is dissolved in, is filled afterwards in filtering Put and filtered, obtain Na2SiO3Solution and insoluble matter, insoluble matter are ferrous material, the rate of recovery of silica 95~ 97%.
4th, fluidized furnace is sent into after ferrous material is dried, be passed through into fluidized furnace also Primordial Qi, also Primordial Qi be hydrogen and The volume ratio of CO mixed gas, wherein hydrogen accounts for also Primordial Qi cumulative volume amount 75%, and fluidisation furnace temperature rises to 850 DEG C, chalybeate Reduction reaction occurs for material, recovery time 60min, obtains the reduced iron that degree of metalization is 90%.
5th, magnetic separation is carried out to reduced iron using concentration equipment, obtains iron powder and tailings；Iron recovery is 93~94%, tailings Middle main component is CaO and MgO, can be used as rock wool adjusting material.
6th, by Na2SiO3Solution imports reactor, the CO that step 1 is obtained2Gas is passed through the Na of reactor2SiO3Solution In, CO2With Na2SiO3React, generate NaCO3Solution and SiO2Sediment, NaCO is separated by filter3Solution and SiO2Sediment.
7th, by NaCO3Solution is dried in concentration and crystallization device, obtains NaCO3, NaCO3For in step 1, being mixed with copper ashes Close, calcination cycle utilizes again.
8th, by SiO2Reclaimed after drying precipitate, SiO2Purity 95.3%, SiO2Available for other industrial uses.
Embodiment 2
This implementation equipment used is same as Example 1, and the chemical composition of copper ashes is shown in Table 2.
The copper ashes chemical composition of table 2, wt%
This implementation handles the flow of copper ashes：
1st, by 100 parts of copper ashes and 90 parts of NaCO3It is well mixed, it is sent into heating furnace and is calcined, by 40~45 DEG C/min Heating, 20min is incubated after being warming up to 1400 DEG C, obtains calcining materials and CO2Gas.
The 2nd, calcining materials are cooled down to broken, the broken calcining materials of acquisition, crush particle diameter≤150 μm of calcining materials.
3rd, broken calcining materials are carried out into water logging in water immersion fully to dissolve, Na2SiO3Water is dissolved in, is filled afterwards in filtering Put and filtered, obtain Na2SiO3Solution and insoluble matter, insoluble matter are ferrous material, the rate of recovery of silica 94~ 96%.
4th, fluidized furnace is sent into after ferrous material is dried, be passed through into fluidized furnace also Primordial Qi, also Primordial Qi be hydrogen and The volume ratio of CO mixed gas, wherein hydrogen accounts for also Primordial Qi cumulative volume amount 85%, and fluidisation furnace temperature rises to 900 DEG C, chalybeate Reduction reaction occurs for material, recovery time 40min, obtains the reduced iron that degree of metalization is 92%.
5th, magnetic separation is carried out to reduced iron using concentration equipment, obtains iron powder and tailings；Iron recovery is 94~95%, tailings Middle main component is CaO and MgO, can be used as rock wool adjusting material.
6th, by Na2SiO3Solution imports reactor, the CO that step 1 is obtained2Gas is passed through the Na of reactor2SiO3Solution In, CO2With Na2SiO3React, generate NaCO3Solution and SiO2Sediment, NaCO is separated by filter3Solution and SiO2Sediment.
7th, by NaCO3Solution is dried in concentration and crystallization device, obtains NaCO3, NaCO3For in step 1, being mixed with copper ashes Close, calcination cycle utilizes again.
8th, by SiO2Reclaimed after drying precipitate, SiO2Purity 95.8%, SiO2Available for other industrial uses.
Embodiment 3
This implementation equipment used is same as Example 1, and the chemical composition of copper ashes is shown in Table 3.
The copper ashes chemical composition of table 3, wt%
This implementation handles the flow of copper ashes：
1st, by 100 parts of copper ashes and 104 parts of NaCO3It is well mixed, it is sent into heating furnace and is calcined, by 40~50 DEG C/min Heating, 30min is incubated after being warming up to 1380 DEG C, obtains calcining materials and CO2Gas.
The 2nd, calcining materials are cooled down to broken, the broken calcining materials of acquisition, crush particle diameter≤150 μm of calcining materials.
3rd, broken calcining materials are carried out into water logging in water immersion fully to dissolve, Na2SiO3Water is dissolved in, is filled afterwards in filtering Put and filtered, obtain Na2SiO3Solution and insoluble matter, insoluble matter are ferrous material, the rate of recovery of silica 95~ 96%.
4th, fluidized furnace is sent into after ferrous material is dried, be passed through into fluidized furnace also Primordial Qi, also Primordial Qi be hydrogen and The volume ratio of CO mixed gas, wherein hydrogen accounts for also Primordial Qi cumulative volume amount 70%, and fluidisation furnace temperature rises to 800 DEG C, chalybeate Reduction reaction occurs for material, recovery time 60min, obtains the reduced iron that degree of metalization is up to 91%.
5th, magnetic separation is carried out to reduced iron using concentration equipment, obtains iron powder and tailings；Iron recovery is 94~95%, tailings Middle main component is CaO and MgO, can be used as rock wool adjusting material.
6th, by Na2SiO3Solution imports reactor, the CO that step 1 is obtained2Gas is passed through the Na of reactor2SiO3Solution In, CO2With Na2SiO3React, generate NaCO3Solution and SiO2Sediment, NaCO is separated by filter3Solution and SiO2Sediment.
7th, by NaCO3Solution is dried in concentration and crystallization device, obtains NaCO3, NaCO3For in step 1, being mixed with copper ashes Close, calcination cycle utilizes again.
8th, by SiO2Reclaimed after drying precipitate, SiO2Purity 96.7%, SiO2Available for other industrial uses.
It should be noted that each embodiment above by reference to described by accompanying drawing only limits this to illustrate rather than The scope of invention, it will be understood by those within the art that, it is right under the premise without departing from the spirit and scope of the present invention The modification or equivalent substitution that the present invention is carried out, all should cover within the scope of the present invention.It is in addition, signified unless the context Outside, the word occurred in the singular includes plural form, and vice versa.In addition, unless stated otherwise, then any embodiment All or part of can combine any other embodiment all or part of use.

Claims (10)

  1. A kind of 1. method of copper ashes comprehensive utilization, it is characterised in that including step：
    A, by copper ashes and NaCO3After well mixed, calcined at 1350~1400 DEG C, obtain calcining materials and CO2Gas, institute State copper ashes and NaCO3Mass ratio be 1:(0.9~1.2)；
    The calcining materials are cooled down to broken, acquisition broken calcining materials B,；
    C, filtered after the broken calcining materials being carried out into water logging, obtain Na2SiO3Solution and ferrous material；
    D, it is anti-that reduction occurs after the ferrous material is dried, in the environment of being 800~900 DEG C in temperature with also Primordial Qi Should, obtain reduced iron；
    E, magnetic separation is carried out to the reduced iron, obtains iron powder and tailings.
  2. 2. according to the method for claim 1, it is characterised in that press 35~50 DEG C/min liters in the step A, during calcining Temperature, temperature is risen to 1350~1400 DEG C.
  3. 3. according to the method for claim 2, it is characterised in that after temperature is risen into 1350~1400 DEG C, insulation 20~ 30min。
  4. 4. according to the method for claim 1, it is characterised in that the reduction gas bag in the step D includes hydrogen, an oxidation The one or more of carbon, coke-stove gas.
  5. 5. according to the method for claim 1, it is characterised in that in the step D, time of reduction reaction for 40~ 60min。
  6. 6. according to the method for claim 1, it is characterised in that using the tailings as rock wool adjusting material.
  7. 7. according to the method for claim 1, it is characterised in that the CO for obtaining step A2Gas is passed through Na2SiO3Solution, CO2With Na2SiO3React, generate NaCO3Solution and SiO2Sediment.
  8. 8. according to the method for claim 7, it is characterised in that by the NaCO3After solution is dried, the NaCO of acquisition3For In the step A, mixed with copper ashes.
  9. 9. according to the method for claim 7, it is characterised in that by SiO2Reclaimed after drying precipitate.
  10. 10. according to the method for claim 1, it is characterised in that in the step B, crush particle diameter≤150 of calcining materials μm。
CN201710630382.XA 2017-07-28 2017-07-28 A kind of method of copper ashes comprehensive utilization Pending CN107460332A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710630382.XA CN107460332A (en) 2017-07-28 2017-07-28 A kind of method of copper ashes comprehensive utilization

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710630382.XA CN107460332A (en) 2017-07-28 2017-07-28 A kind of method of copper ashes comprehensive utilization

Publications (1)

Publication Number Publication Date
CN107460332A true CN107460332A (en) 2017-12-12

Family

ID=60547825

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710630382.XA Pending CN107460332A (en) 2017-07-28 2017-07-28 A kind of method of copper ashes comprehensive utilization

Country Status (1)

Country Link
CN (1) CN107460332A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020077851A1 (en) * 2018-10-17 2020-04-23 江西理工大学 Method for recovering iron by means of copper slag calcination and modification

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104404260A (en) * 2014-11-24 2015-03-11 北京神雾环境能源科技集团股份有限公司 Method for separating valuable metals from copper slag
CN106916958A (en) * 2017-03-15 2017-07-04 中南大学 A kind of method that iron is reclaimed in copper smelting slag direct-reduction

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104404260A (en) * 2014-11-24 2015-03-11 北京神雾环境能源科技集团股份有限公司 Method for separating valuable metals from copper slag
CN106916958A (en) * 2017-03-15 2017-07-04 中南大学 A kind of method that iron is reclaimed in copper smelting slag direct-reduction

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
詹保峰 等: "焙烧-浸出-磁选回收铜渣中的铁", 《矿冶工程》 *
詹保峰: "奥斯麦特炼铜炉渣改性及铜铁回收的研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020077851A1 (en) * 2018-10-17 2020-04-23 江西理工大学 Method for recovering iron by means of copper slag calcination and modification

Similar Documents

Publication Publication Date Title
CN101413055B (en) Process for directly preparing nickel-iron alloy powder from laterite-nickel ore
Zhou et al. Extraction and separation of copper and iron from copper smelting slag: A review
Gao et al. Effect of microwave irradiation and conventional calcification roasting with calcium hydroxide on the extraction of vanadium and chromium from high-chromium vanadium slag
CN103898330B (en) The method of the valuable metal such as comprehensive recovery of iron, aluminium, scandium, titanium, vanadium from red mud
CN101886179B (en) Method for separating ferrum, copper and silicon components from copper smelting residues
CN106048251B (en) A kind of process of clean and effective processing setting form
CN103740933B (en) A kind of method of nickel oxide material production Rhometal
CN101413053B (en) Additive for strengthening reduction and separation of laterite-nickel ore
CN109055720B (en) A method of iron powder is prepared based on the modified copper ashes with cryogenic vulcanization reduction of alkaline process
CN112111660B (en) Method for enriching lithium from lithium ore and preparing ferro-silicon alloy and recycling aluminum oxide
WO2012171481A1 (en) Hydrometallurgical process for complete and comprehensive recovery with substantially no wastes and zero emissions
CN101693543A (en) High value-added greening comprehensive utilization method of boron concentrate, boron-containing iron concentrate and ludwigite
CN101812598B (en) Method for simultaneously smelting zinc dipping slag and zinc kiln slag by using blast furnace
CN101787439A (en) Method for recovering valuable metals from metallurgical waste
Zhang et al. A review of comprehensive utilization of high-iron red mud of China
CN105063254A (en) Method for separating iron, zinc and carbon in blast furnace sludge
CN104561551A (en) Method for separating and extracting valuable element from boron-magnesium-iron paragenic ore
CN105110300B (en) The method that a kind of compound manganese ore of Containing Sulfur manganese extracts manganese and sulphur
CN103866116A (en) Method for oxidizing molybdenum concentrate
CN111057854B (en) Treatment method of metal tailings
CN107460332A (en) A kind of method of copper ashes comprehensive utilization
CN103215446A (en) Serpentine type laterite nickel ore hydrochloric acid normal pressure leaching cleaning production method
CN110980753B (en) Process for producing high-quality sodium silicate by adopting high-silicon iron ore
CN111440908B (en) Method for converting titanium component in titanium-containing blast furnace slag into ilmenite
CN108893572A (en) A kind of method of valuable constituent element comprehensive reutilization in paigeite

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20171212