CN106119568A - A kind of with difficult metallurgical fine powder the replacement high-copper of solvent, high silicon lead raw ore smelting process - Google Patents
A kind of with difficult metallurgical fine powder the replacement high-copper of solvent, high silicon lead raw ore smelting process Download PDFInfo
- Publication number
- CN106119568A CN106119568A CN201610704719.2A CN201610704719A CN106119568A CN 106119568 A CN106119568 A CN 106119568A CN 201610704719 A CN201610704719 A CN 201610704719A CN 106119568 A CN106119568 A CN 106119568A
- Authority
- CN
- China
- Prior art keywords
- lead
- copper
- solvent
- fine powder
- slag
- 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
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
- C22B13/00—Obtaining lead
- C22B13/02—Obtaining lead by dry processes
-
- 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
- C22B11/00—Obtaining noble metals
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C1/00—Electrolytic production, recovery or refining of metals by electrolysis of solutions
- C25C1/18—Electrolytic production, recovery or refining of metals by electrolysis of solutions of lead
-
- 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
Abstract
The present invention relates to a kind of to replace the high-copper of solvent, high silicon lead raw ore smelting process with difficult metallurgical fine powder, including (1), dispensing, granulation: by mass percentage by 20～45% lead tcrude ore, 30～50% lead fine powder and 25～30% aurin powder carry out mixing, pelletizing；(2), blast furnace sintering: the compound prepared is added in blast furnace, prepares agglomerate after sintering；(3), lead smelt: coke, return slag, agglomerate are joined in blast furnace, smelts, it is achieved the separation of lead bullion, copper matte regulus and slag；(4), lead bullion electrorefining；The present invention smelts aurin powder using difficulty and joins the solvent participation dispensing of slag as lead smelting, on the one hand it is not required to outsourcing Silicon stone, thus saved the expense of solvent, and the production capacity of lead can be increased, on the other hand make concentration of precious metal in lead bullion by pyrometallurgical smelting, after electrorefining, process the earth of positive pole and make golden direct yield reach 99%, silver direct yield more than 90%, and can process high-copper height silicon lead raw ore smelt increase income matte.
Description
Technical field
The present invention relates to lead smelt technical field, be specifically related to a kind of with difficult metallurgical fine powder the replacement high-copper of solvent, height
Silicon lead raw ore smelting process.
Background technology
According to statistics, within 2007, world's lead bullion yield is 8,150,000 tons, and China is 281.1 ten thousand tons, accounts for the 34.49% of the world.Its
Middle world ore lead is 385.2 ten thousand tons, and China is 159.2 ten thousand tons, accounts for the 41.33% of the world, and world's reviver is 433.6 ten thousand tons,
China is 800,000 tons, accounts for the 18.45% of the world, and China is lead manufacturing country maximum in the world.
The blast furnace smelting technology of agglomerate is the most widely used Lead production technology, and the lead in the whole world 80% originates in
This flow process, its main technological steps is: lead concentrate is baked with agglomeration, the agglomerate that output is hard, loose porous, and agglomerate uses drum
Wind furnace reduction melting produces lead bullion.This technique produces a large amount of low-concentration sulfur dioxide in sintering process, it is impossible to meets and produces sulfur
Acid require concentration and be directly discharged into air, cause serious environmental pollution.Meanwhile, in sintering process, a large amount of back powders return burning
Knot, sintering efficiency is low, complex process.At present, be applied to the lead smelt technique of industrialized production mainly have base husband's C1-esteraseremmer-N method,
QSL method, kaldo process and top-blown submergence melting technique four kinds, the shortcoming of base husband's C1-esteraseremmer-N method is the need for the stock preparation system of complexity and comes
Ensure to drop to 0.5～1% into the aqueous of stove material, also need to oxygen generation system simultaneously and oxygen is provided；The shortcoming of QSL method is to smelt
Zoneofoxidation and reducing zone concentrate in an equipment, and fusion process control accuracy is required height, reach the product cycle up to standard long, are used
Service life of lance short；The shortcoming of kaldo process be smelt in produce flue gas and lead bullion be all intermittent discharge, need huge cigarette
Gas stocking system and complicated drying system of getting the raw materials ready, it is difficult to be widely popularized；And the reducing and smelting furnace stove of top-blown submergence melting technique
Longevity is the shortest, needs frequently to repair stove, causes refractory wear high, and working performance is low.
Gold Deposits In Henan Province aboundresources, ends the beginning of the nineties, and proved reserves occupy the 5th, the whole nation.Existing 7 gold deposits are visited
Bright reserves reach large-scale.Mainly with the mineral deposit of Jin Weizhu, the proportion shared by associated gold ore is less than 2%, and Yi Caiyi choosing,
Therefore exploit and contain very much.Gold output in 1989 is only second to Shandong, occupies whole nation second.Gold Deposits In Henan Province is widely distributed, mainly collects
In be distributed in Xiao cynling, Xonger Group-outer mesa and Tongbai Shan Mountain northern foot.For interior raw Gold Deposit Types, this Gold Metallogenic Belts is main
For altered tectonite type.Gold Mineralization is crushed zone and for inclusion enclave, intergrowth, microgranule embedding cloth type gold, belong to difficulty adopt, difficult
Choosing, difficult metallurgical ore deposit, the conventional cyanidization metallurgy method response rate is less than 50%, and the response rate of silver is only 20%.These fine gold powder due to
The big mineral composition of sediment charge is special, brings on a disaster all to original metallurgical technology to some large-scale metallurgical factories.
Summary of the invention
The present invention is to solve weak point of the prior art, it is provided that a kind of height replacing solvent with difficult metallurgical fine powder
Copper, high silicon lead raw ore smelting process.
For solving above-mentioned technical problem, the present invention adopts the following technical scheme that and a kind of replaces solvent with difficult metallurgical fine powder
High-copper, high silicon lead raw ore smelting process, described technique comprises the following steps:
(1), dispensing, granulation: by mass percentage by 20～45% lead tcrude ore, 30～50% lead fine powder and 25～30% aurin powder
Mix, then allocate back powder into by selected blast furnace slag type and make mixing raw material, and add mixing raw material weight 3～4%
Water, keeps 0.5～1 hour, makes compound, then add mixture in granulator, add compound weight 1 after stirring
～the water of 1.5%, pelletize；
Being mainly composed of of the slag type of selected slag: Fe 20～26%, SiO228～32%, CaO 18～23%, Zn ＜ 8%, Fe
≤2.5%；
(2), blast furnace sintering: adding in blast furnace by the compound prepared, controlling sintering temperature is 700～1000 DEG C, sinters 2
～3 hours, preparing agglomerate, the lumpiness controlling agglomerate is 50～150mm；
(3), lead smelt: in order coke, return slag, agglomerate are joined in blast furnace, and add sinter quality 1～3%
Iron filings, control blast intensity be 20～30m3/(m2Min), blast pressure is 11～20KPa, smelts, it is achieved thick
The separation of lead, copper matte regulus and slag；
(4), lead bullion electrorefining: isolated lead bullion is first through preliminary fire refining, then with fluosilicic lead plumbate and the water of silicofluoric acid
Solution is that electrolyte carries out electrorefining, after anode lead is scrubbed, melts and carries out refinement oxide and then cast finished product lead pig, sun
The treated recovery of pole mud gold, silver therein noble metal.
Compound granularity requirements after pelletizing in described step (1) is: granularity be 3～9mm compound account for 55～85%,
The granularity compound less than 3mm is less than 15%, and the granularity compound more than 9mm is less than 15%；
In described step (3), the feed space of material is divided into 10～20min.
Controlling burnt rate in described step (3) during melting is 10～15%.
Beneficial effect:
1, the present invention smelts the solvent participation dispensing joining slag using difficulty smelting aurin powder as lead, and on the one hand difficulty metallurgy fine powder is self-contained
SiO2Component makees sludging flux, is not required to outsourcing Silicon stone, thus has saved the expense of solvent, and can increase the production capacity of lead, separately
On the one hand make concentration of precious metal in lead bullion by pyrometallurgical smelting, after electrorefining, process the earth of positive pole and make golden direct yield reach
99%, silver direct yield more than 90%, and can process high-copper height silicon lead raw ore smelt increase income matte.
2, the method for the present invention uses " four is high " process conditions of high coke yield, high furnace temperature, high slag dam, high reducing atmosphere, de-
Sulfur is effective, and copper matte regulus lead tolerance is low.
3, Henan Lingbao City one band high-copper, Gao Jin, high silicon lead raw ore are smelted and Xiaoqinling to Xiong'er shan difficulty smelting by the method for the present invention
Aurin powder enters blast furnace smelting, gold, silver direct yield ＞ 99%, only 2 years 0.5m together2Blast furnace processes difficult metallurgical fine powder 1000
Many tons, increase income nearly 500 tons of matte, really serve the effect increasing income noble metal.
Detailed description of the invention
Embodiment 1
A kind of with difficult metallurgical fine powder the replacement high-copper of solvent, high silicon lead raw ore smelting process, described technique comprises the following steps:
(1), dispensing, granulation: by mass percentage 20% lead tcrude ore, 50% lead fine powder and 30% aurin powder are mixed, then press
Selected blast furnace slag type is allocated back powder into and is made mixing raw material, and adds the water mixing raw material weight 4%, keeps 0.5 after stirring
Hour, make compound, then add mixture in granulator, add the water of compound weight 1.5%, pelletize；Pelletize
During Duan Jiashui, being only limitted to adjust compound humidity, to obtaining preferable pelletizing effect, add fashionable, water droplet is unsuitable thick, so
Can guarantee that regulation effect is good.The mixing of sintered material and granulation complete in being divided among two equipment, separately carry out mixing and making
Grain can improve sintering output.Wherein pelletize after compound granularity requirements: granularity be 3～9mm account for 55～85%, granularity is less than
3mm less than 15%, granularity more than 9mm less than 15%；
Being mainly composed of of the slag type of selected slag: Fe 20%, SiO228%, CaO 20%, Zn 7%, Cu 2%, wherein SiO2/
Fe=1.4；
Bin proportioning can be used during dispensing, for avoiding the adhesion of material, reducing the labor intensity of cleaning work, quantity is big, pine
Dissipating inadherent back powder and be distributed in bottom, dry aurin powder etc. is distributed in centre, and aqueous high lead concentrate and lead raw ore then cover
The superiors.
(2), sintering: adding in blast furnace by the compound prepared, controlling sintering temperature is 700～1000 DEG C, sinters 3
Hour, preparing agglomerate, the lumpiness controlling agglomerate is 50～150mm；
(3), lead smelt: joining in blast furnace by coke, return slag, agglomerate in order, feed space is divided into 10min.And add
Entering the iron filings of sinter quality 1%, control blast intensity is 20m3/(m2Min), blast pressure is 11KPa, and burnt rate is 15%.Enter
Row is smelted, it is achieved lead bullion and the separation of slag；
Enter the lead in reduction process material with Pb0, PbO Fe203、xPbO ySi02, Pb and PbS and PbS04Exist.Pb0
With PbO Fe203It it is the compound being easily reduced.Metal Pb high temperature melting i.e. expands in molten bullion.PbS mainly enters ice
Copper, during also some is volatized into flue dust, also has and reacts generation metallic lead on a small quantity with lead sulfate.PhS with Pb0 reacts generation gold
The probability belonging to lead is less, because this reaction ability fierceness to be carried out when 800 DEG C, and Pb0 now is the most preferentially reduced.
PbS04Mainly being reduced to PbS and enter matte, very small amount is at high temperature decomposed into Pb0, then is reduced to metallic lead.
(4), lead bullion electrorefining: isolated lead bullion is first through preliminary fire refining, then with fluosilicic lead plumbate and silicofluoric acid
Aqueous solution be that electrolyte carries out electrorefining, after anode lead is scrubbed, melts and carry out refinement oxide and then cast finished product lead
Ingot, the treated recovery of earth of positive pole gold, silver therein noble metal.
Embodiment 2
A kind of with difficult metallurgical fine powder the replacement high-copper of solvent, high silicon lead raw ore smelting process, described technique comprises the following steps:
(1), dispensing, granulation: by mass percentage 40% lead tcrude ore, 30% lead fine powder and 30% aurin powder are mixed, then press
Selected blast furnace slag type is allocated back powder into and is made mixing raw material, and adds the water mixing raw material weight 3%, and after stirring, holding 1 is little
Time, make compound, then add mixture in granulator, add the water of compound weight 1%, pelletize；Granulation section adds
During water, being only limitted to adjust compound humidity, to obtaining preferable pelletizing effect, add fashionable, water droplet is unsuitable thick, so can protect
Card regulation effect is good.The mixing of sintered material and granulation complete in being divided among two equipment, and separately carrying out mixing and pelletize can
Improve sintering output.Compound granularity requirements after wherein pelletizing: granularity be 3～9mm account for 55～85%, granularity is less than 3mm
Less than 15%, granularity more than 9mm less than 15%；
Being mainly composed of of the slag type of selected slag: Fe 22%, SiO232%, CaO 22%, Zn 4%, Cu 1%, wherein SiO2/
Fe=1.454；
(2), sintering: adding in blast furnace by the compound prepared, controlling sintering temperature is 700～1000 DEG C, sinters 2～3
Hour, preparing agglomerate, the lumpiness controlling agglomerate is 50～150mm；
(3), lead smelt: joining in blast furnace by coke, return slag, agglomerate in order, feed space is divided into 10min.And add
Entering the iron filings of sinter quality 3%, control blast intensity is 30m3/(m2Min), blast pressure is 20KPa, and burnt rate is 10%.Enter
Row is smelted, it is achieved lead bullion and the separation of slag；
(4), lead bullion electrorefining: isolated lead bullion is first through preliminary fire refining, then with fluosilicic lead plumbate and the water of silicofluoric acid
Solution is that electrolyte carries out electrorefining, after anode lead is scrubbed, melts and carries out refinement oxide and then cast finished product lead pig, sun
The treated recovery of pole mud gold, silver therein noble metal.
Embodiment 3
A kind of with difficult metallurgical fine powder the replacement high-copper of solvent, high silicon lead raw ore smelting process, described technique comprises the following steps:
(1), dispensing, granulation: by mass percentage 35% lead tcrude ore, 40% lead fine powder and 25% aurin powder are mixed, then press
Selected blast furnace slag type is allocated back powder into and is made mixing raw material, and adds the water mixing raw material weight 3%, and after stirring, holding 1 is little
Time, make compound, then add mixture in granulator, add the water of compound weight 1%, pelletize；Granulation section adds
During water, being only limitted to adjust compound humidity, to obtaining preferable pelletizing effect, add fashionable, water droplet is unsuitable thick, so can protect
Card regulation effect is good.The mixing of sintered material and granulation complete in being divided among two equipment, and separately carrying out mixing and pelletize can
Improve sintering output.Compound granularity requirements after wherein pelletizing: granularity be 3～9mm account for 55～85%, granularity is less than 3mm
Less than 15%, granularity more than 9mm less than 15%；
Being mainly composed of of the slag type of selected slag: Fe 23%, SiO230%, CaO 18%, Zn 5%, Cu 0.5%, wherein
SiO2/Fe=1.3；
(2), sintering: adding in blast furnace by the compound that prepare, controlling sintering temperature is 700～1000 DEG C, sinter 2 little
Time, preparing agglomerate, the lumpiness controlling agglomerate is 50～150mm；
(3), lead smelt: joining in blast furnace by coke, return slag, agglomerate in order, feed space is divided into 10min.And add
Entering the iron filings of sinter quality 2%, control blast intensity is 25m3/(m2Min), blast pressure is 16KPa, and burnt rate is 13%.Enter
Row is smelted, it is achieved lead bullion and the separation of slag；
(4), lead bullion electrorefining: isolated lead bullion is first through preliminary fire refining, then with fluosilicic lead plumbate and the water of silicofluoric acid
Solution is that electrolyte carries out electrorefining, after anode lead is scrubbed, melts and carries out refinement oxide and then cast finished product lead pig, sun
The treated recovery of pole mud gold, silver therein noble metal.
Claims (4)
1. one kind replaces the high-copper of solvent, high silicon lead raw ore smelting process with difficult metallurgical fine powder, it is characterised in that: described technique bag
Include following steps:
(1), dispensing, granulation: by mass percentage by 20～45% lead tcrude ore, 30～50% lead fine powder and 25～30% aurin powder
Mix, then allocate back powder and limestone into by selected blast furnace slag type, make mixed dry material, be subsequently adding mixed dry material weight
The amount 3～water of 4%, keeps 0.5～1 hour, adds in granulator afterwards after stirring, be simultaneously introduced mixed dry material weight 1～
The water of 1.5% is pelletized, and makes compound；
Being mainly composed of of selected slag slag type: Fe 20～26%, SiO228～32%, CaO 18～23%, Zn ＜ 8%, Fe≤
2.5%；
(2), blast furnace sintering: adding in blast furnace by the compound prepared, controlling sintering temperature is 700～1000 DEG C, sinters 2
～3 hours, preparing agglomerate, the lumpiness controlling agglomerate is 50～150mm；
(3), lead smelt: in order coke, return slag, agglomerate are joined in blast furnace, and add sinter quality 1～3%
Iron filings, control blast intensity be 20～30m3/(m2Min), blast pressure is 11～20KPa, smelts, it is achieved thick
The separation of lead, copper matte regulus and slag；
(4), lead bullion electrorefining: isolated lead bullion is first through preliminary fire refining, then with fluosilicic lead plumbate and the water of silicofluoric acid
Solution is that electrolyte carries out electrorefining, after anode lead is scrubbed, melts and carries out refinement oxide and then cast finished product lead pig, sun
The treated recovery of pole mud gold, silver therein noble metal.
A kind of with difficult metallurgical fine powder the replacement high-copper of solvent, high silicon lead raw ore smelting process, it is special
Levy and be: the compound granularity requirements after pelletizing in described step (1) is: granularity be 3～9mm compound account for 55～85%, grain
The degree compound less than 3mm is less than 15%, and the granularity compound more than 9mm is less than 15%.
A kind of with difficult metallurgical fine powder the replacement high-copper of solvent, high silicon lead raw ore smelting process, it is special
Levy and be: in described step (3), the feed space of material is divided into 10～20min.
A kind of with difficult metallurgical fine powder the replacement high-copper of solvent, high silicon lead raw ore smelting process, it is special
Levy and be: controlling burnt rate in described step (3) during melting is 10～15%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610704719.2A CN106119568A (en) | 2016-08-23 | 2016-08-23 | A kind of with difficult metallurgical fine powder the replacement high-copper of solvent, high silicon lead raw ore smelting process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610704719.2A CN106119568A (en) | 2016-08-23 | 2016-08-23 | A kind of with difficult metallurgical fine powder the replacement high-copper of solvent, high silicon lead raw ore smelting process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106119568A true CN106119568A (en) | 2016-11-16 |
Family
ID=57274000
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610704719.2A Pending CN106119568A (en) | 2016-08-23 | 2016-08-23 | A kind of with difficult metallurgical fine powder the replacement high-copper of solvent, high silicon lead raw ore smelting process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106119568A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11319613B2 (en) | 2020-08-18 | 2022-05-03 | Enviro Metals, LLC | Metal refinement |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2104321C1 (en) * | 1996-12-09 | 1998-02-10 | Амурский научный центр Дальневосточного отделения РАН | Method of gold recovery from mineral raw materials |
| CN101705368A (en) * | 2009-12-07 | 2010-05-12 | 河南豫光金铅股份有限公司 | Process and device for treating decopperized slag by adopting bottom-blowing molten pool to produce wet lead and raw copper |
| CN104263965A (en) * | 2014-10-11 | 2015-01-07 | 中南大学 | Method for recovering gold and lead by smelting refractory gold ore and lead-containing waste residue raw materials through oxygen enrichment molten pool |
| CN104313328A (en) * | 2014-10-11 | 2015-01-28 | 中南大学 | Method for smelting and recovering lead and gold from reduction and sulfur fixation molten pool based on refractory gold ores and lead-containing residue raw materials |
| CN104388980A (en) * | 2014-10-11 | 2015-03-04 | 贵州永鑫冶金科技有限公司 | Method for extracting gold from difficultly treated gold ore |
-
2016
- 2016-08-23 CN CN201610704719.2A patent/CN106119568A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2104321C1 (en) * | 1996-12-09 | 1998-02-10 | Амурский научный центр Дальневосточного отделения РАН | Method of gold recovery from mineral raw materials |
| CN101705368A (en) * | 2009-12-07 | 2010-05-12 | 河南豫光金铅股份有限公司 | Process and device for treating decopperized slag by adopting bottom-blowing molten pool to produce wet lead and raw copper |
| CN104263965A (en) * | 2014-10-11 | 2015-01-07 | 中南大学 | Method for recovering gold and lead by smelting refractory gold ore and lead-containing waste residue raw materials through oxygen enrichment molten pool |
| CN104313328A (en) * | 2014-10-11 | 2015-01-28 | 中南大学 | Method for smelting and recovering lead and gold from reduction and sulfur fixation molten pool based on refractory gold ores and lead-containing residue raw materials |
| CN104388980A (en) * | 2014-10-11 | 2015-03-04 | 贵州永鑫冶金科技有限公司 | Method for extracting gold from difficultly treated gold ore |
Non-Patent Citations (1)
| Title |
|---|
| 黄健康等: "秦岭多金属金矿冶炼方案的研究", 《矿冶工程》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11319613B2 (en) | 2020-08-18 | 2022-05-03 | Enviro Metals, LLC | Metal refinement |
| US11578386B2 (en) | 2020-08-18 | 2023-02-14 | Enviro Metals, LLC | Metal refinement |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103382527B (en) | Flash smelting method and device for zinc sulfide concentrates and materials containing lead and zinc | |
| CN102321806B (en) | A kind of smelting process of processing zinc leaching residue by oxygen-enriched side-blowing furnace | |
| CN103388081A (en) | Bath smelting method and apparatus of zinc sulfide concentrate and lead-zinc containing materials | |
| CN103320617B (en) | Technology for cleanly and harmlessly processing high-calcium waste residue and high-iron waste residue | |
| CN101705366B (en) | Direct lead smelting method for processing zinc smelting slag by matching | |
| CN104278162A (en) | Method of selectively smelting antimony-lead-containing complex materials in smelting tank | |
| CN104498731B (en) | A kind of method and apparatus of the solid sulfur melting of oxygen-enriched side-blowing low-temperature alkali | |
| CN103740945B (en) | A kind of method of enriching and recovering cadmium from plumbous smelting system | |
| CN102634653B (en) | Side-blowing material-smelting production method | |
| CN208649428U (en) | Anode copper process units | |
| CN103421955A (en) | Zinc leaching slag treatment method | |
| CN103757170A (en) | Method for injection reduction extraction of iron from nickel smelting furnace slag | |
| CN103695650A (en) | Method for smelting lead paste of waste lead storage battery | |
| CN103361491A (en) | Liquid-state high-lead slag side-blowing water-gas reduction process | |
| CN111893310A (en) | Harmless recycling treatment method for solid hazardous waste | |
| CN1270235A (en) | Process for treating low-grade anode mud | |
| CN103993164A (en) | Simultaneous multi-metal smelting and separating method for mixed oxide and sulfide ore of lead and zinc | |
| CN107604170A (en) | A kind of method of separation and concentration noble metal in potassium cloride slag from low nickel matte | |
| CN101323905B (en) | Fire metallurgy process of copper lead zinc mixing ore concentrate | |
| CN106244822A (en) | A kind of lead bullion that improves contains the high zinc lead raw ore smelting process of gold, silver amount | |
| CN106119568A (en) | A kind of with difficult metallurgical fine powder the replacement high-copper of solvent, high silicon lead raw ore smelting process | |
| CN104388980A (en) | Method for extracting gold from difficultly treated gold ore | |
| CN111979424A (en) | Metallurgy method of high-sulfur lead slag containing zinc and tin | |
| CN109385521B (en) | Production process for lead-antimony mixed ore oxygen-enriched molten pool low-temperature oxidation smelting | |
| CN113817924B (en) | Method for producing blister copper by smelting copper dross and smelting device thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20161116 |
|
| RJ01 | Rejection of invention patent application after publication |