CN102899499B - Process and device for recovering noble metals of zinc smelting acid leaching residues - Google Patents
Process and device for recovering noble metals of zinc smelting acid leaching residues Download PDFInfo
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- CN102899499B CN102899499B CN201210368681.8A CN201210368681A CN102899499B CN 102899499 B CN102899499 B CN 102899499B CN 201210368681 A CN201210368681 A CN 201210368681A CN 102899499 B CN102899499 B CN 102899499B
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- 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 invention discloses a process for recovering noble metals of zinc smelting acid leaching residues. The process comprises the steps of firstly, subjecting bottom flow of a thickener of a zinc smelting system to first filter pressing to produce acid leaching residues; secondly, conducting countercurrent washing, filter pressing and pulping on acid leaching residues produced in Step 1) to obtain a pulping liquid; and finally, sending the pulping liquid into a flotation system for flotation, and obtaining concentrates and tailings through flotation. According to the process for selecting silver from acid leaching residues, raw materials are subjected to primary countercurrent washing, water-soluble zinc in raw materials is removed, pulp mixing is conducted for flotation, a silver concentrate and tailings are obtained, the silver concentrate is sent into a lead smelting system so as to recover the silver further, tailings are sent into a zinc volatilization kiln for zinc recovery, and flotation wastewater is recycled to recover the water-soluble zinc and achieve zero draining of the wastewater. According to the process, valuable metals in acid leaching residues are recycled comprehensively, the slag damage is eliminated, the environment is protected, and overall economic efficiency of enterprises is improved. The invention also discloses a device of the recovering process.
Description
Technical field
The present invention relates to zinc and smelt method and the device that in acid leaching residue, precious metal reclaims, particularly a kind of zinc is smelted acid leaching residue precious metal recovery process and device.
Background technology
Zinc hydrometallurgy is the topmost zinc metallurgy method in the world today, and its output accounts for the more than 85% of the total zinc output in the world.World's zinc throughput newly-built and enlarging all adopts Zinc hydrometallurgy process in the recent period.Zinc Hydrometallurgy Technology technical process is: zinc ore concentrate directly leaches after roasting, reclaims zinc from immersion liquid, and ore pulp further reclaims zinc through Rotary Kiln after concentrate drying, and discharges leached mud, i.e. acid leaching residue.The gold comprising in acid leaching residue and silver also all enter in acid leaching residue and are not recycled, and cause thus precious resources waste.For example in my company's zinc metallurgical process, in the acid leaching residue of output, contain the multiple valuable metals such as silver, gold, copper, its grade is Ag300-400g/t, Au1.5g/t, Cu0.6-1%.
In acid leaching residue, the recovery method of precious metal is first acid leaching residue to be entered to Rotary Kiln to reclaim zinc at present, Ag, Cu, Au etc. wherein enter in kiln slag, reclaim iron by magnetic method again, Ag, Au wherein follows iron to be recovered in iron ore concentrate, the rate of returning of this scheme silver is low, concentration ratio is low, comprehensively reclaims bad economic results.
Summary of the invention
One of technical problem to be solved by this invention is to provide for the existing problem of recovery method of precious metal in existing acid leaching residue a kind of zinc to smelt acid leaching residue precious metal recovery process.
Two of technical problem to be solved by this invention is to provide the device of realizing above-mentioned recovery process.
Smelt acid leaching residue precious metal recovery process as the zinc of first aspect present invention, its concrete steps are:
1, by zinc smelting system thickening pond underflow through the acid leaching residue of press filtration output for the first time, the filtrate of the first press filtration is returned to zinc smelting system;
2, by the acid leaching residue countercurrent washing of step 1 output, washings obtains filtrate and press cake for the second time after press filtration for the second time, and it is for subsequent use that press filtration solution enters press filtration solution stationary tank storage for the second time for the second time, and press cake carries out pulp and obtains pulp liquid;
3, the pulp liquid of being prepared by step 2 is sent into floatation system and is carried out flotation, and flotation obtains concentrate, mine tailing and flotation supernatant liquor, and described flotation supernatant liquor is served clear liquid storage tank;
A part in the described solution of press filtration for the second time stationary tank for the second time press filtration solution is returned to zinc smelting system, the remaining solution of press filtration for the second time and a part of flotation supernatant liquor supplement with return the solution A part that obtains after the clear water of the solution of press filtration for the second time same volume of zinc smelting system be back to step 2 in supplementary as washings; Another part solution A is sent into step 2 as sizing mixing recycle, and remaining solution A is sent into floatation system recycle.
In a preferred embodiment of the invention, pulp in described step 2 comprises pulp whipping step successively, the whipping step of sizing mixing, promote whipping step and give slurry whipping step, wherein before pulp step, supplement part solution A, supplement part solution A described to before starching step.
In a preferred embodiment of the invention, described flotation comprises that rough floatation step, cleaner flotation step, first scan step, second and scan step, the rough floatation foam solution overflow that wherein rough floatation step forms enters cleaner flotation step and carries out selected, the rough floatation ore deposit that rough floatation step forms is sent in the first medial launder, supplement second scan that step forms second send into first after scanning foam solution and scan step; After the washed ore press filtration that cleaner flotation step obtains, obtain concentrate and washed ore pressing filtering liquid, the selected foam solution that cleaner flotation step obtains and first is scanned after foam solution merging is scanned in first of step generation and is back to pulp step; First scan that step produces first scan mine tailing and send in the second medial launder, after supplementary part solution A, give second and scan step, second scan that step produces second scan foam solution and send in the first medial launder, second scan that step obtains second scan mine tailing and after concentrated, press filtration, obtain mine tailing and concentrated supernatant, press filtration supernatant liquor, after concentrated supernatant, press filtration supernatant liquor and washed ore pressing filtering liquid merge, form flotation supernatant liquor and send into and serve clear liquid storage tank.
Zinc as second aspect present invention is smelted acid leaching residue precious metal recovery device, comprise: zinc smelting system thickening pond underflow whipping appts, the first filter-pressing device, countercurrent washing device, the second filter-pressing device, slurrying device, floatation system, wherein the entrance of zinc smelting system thickening pond underflow whipping appts is connected with the underflow outlet of zinc smelting system thickening pond, the outlet of zinc smelting system thickening pond underflow whipping appts is connected with the entrance of the first filter-pressing device by pipeline, the filtrate outlet of the first filter-pressing device connects the entrance of the first stationary tank by pipeline, the outlet of the first stationary tank connects zinc smelting system, the acid leaching residue outlet of the first filter-pressing device connects the entrance of countercurrent washing device, the outlet of countercurrent washing device connects the entrance of the second filter-pressing device, the filtrate outlet of the second filter-pressing device connects the entrance of the second stationary tank, and the outlet of the second stationary tank connects zinc smelting system on the one hand, connects countercurrent washing device on the other hand by pipeline, the press cake outlet of the second filter-pressing device connects slurrying device entrance by pipeline, the entrance of the outlet floatation system of slurrying device, floatation system has concentrate outlet, the outlet of selected foam pressing filtering liquid, mine tailing outlet, concentrated supernatant outlet, the outlet of press filtration supernatant liquor, after selected foam pressing filtering liquid outlet, concentrated supernatant outlet and the outlet of press filtration supernatant liquor merge, connect clear liquid storage tank by pipeline, described supernatant liquor storage tank has supplementary mouthful an of clear water and is connected to floatation system, slurrying device and countercurrent washing device by pipeline.
In a preferred embodiment of apparatus of the present invention, described slurrying device comprises the pulp agitation vat of series operation, the agitation vat of sizing mixing successively, promote agitation vat and to slurry agitation vat, wherein the entrance of pulp agitation vat connects the press cake outlet of the second filter-pressing device, connects floatation system to the outlet of slurry agitation vat.
In a preferred embodiment of apparatus of the present invention, described floatation system comprises that rough floatation device, cleaner flotation device, first scan device, second and scan device, the first medial launder, the second medial launder, the 3rd medial launder, the 4th medial launder, the entrance of described rough floatation device is connected with the outlet of described slurrying device and supernatant liquor storage tank, rough floatation device also has rough floatation foam solution overflow port and the outlet of rough floatation mine tailing, the rough floatation foam solution overflow port of rough floatation device connects the entrance of cleaner flotation device, and the outlet of rough floatation mine tailing connects the first medial launder; The entrance of cleaner flotation device is also connected with supernatant liquor storage tank, and this cleaner flotation device also has a cleaner flotation foam solution overflow port and cleaner tailings outlet, and cleaner flotation foam solution overflow port connects the second medial launder, and the second medial launder is also connected with the entrance of the first filtering equipment; The first filtering equipment also has concentrate outlet and the outlet of washed ore pressing filtering liquid, concentrate outlet output concentrate; The first entrance of scanning device connects the first medial launder on the one hand, connect on the other hand supernatant liquor storage tank, first scans device also has first and scans foam solution overflow port and first and scan mine tailing outlet, first scans after foam solution overflow port and cleaner tailings export and connect and is connected to the first medial launder by pipeline, and first scans mine tailing outlet connects the 3rd medial launder; The second entrance of scanning device connects the 3rd medial launder on the one hand, connect on the other hand supernatant liquor storage tank, second scans device also has second and scans foam solution overflow port and second and scan mine tailing outlet, and second scans foam solution overflow port is connected to the first medial launder by pipeline; Second scans mine tailing outlet connects the 4th medial launder; The 4th medial launder is connected with the entrance of thickener, and thickener also has concentrated mine tailing outlet and concentrated supernatant outlet, and concentrated mine tailing outlet is connected with the entrance of the second filtering equipment; The second filtering equipment also has mine tailing outlet and the outlet of press filtration supernatant liquor, mine tailing outlet output mine tailing; The concentrated supernatant outlet of the washed ore pressing filtering liquid outlet of the first filtering equipment, the press filtration supernatant liquor outlet of the second filtering equipment and thickener connects clear liquid storage tank by pipeline and after connecing.
In a preferred embodiment of apparatus of the present invention, described rough floatation device, cleaner flotation device, first are scanned device, second and are scanned device and be flotation column.
Owing to having adopted technique scheme, acid leaching residue of the present invention selects silver first raw material to be carried out to a countercurrent washing, slough water-soluble zinc wherein, size mixing again and carry out flotation, obtain a silver preparation concentrate and mine tailing, silver preparation concentrate enters plumbous smelting system and further reclaims silver, and mine tailing enters zinc Rotary Kiln and reclaims zinc, and beneficiation wastewater recycle is to reclaim water-soluble zinc and to realize wastewater zero discharge.Valuable metal in comprehensive reutilization acid leaching residue of the present invention, eliminates slag evil, and protection of the environment, improves the whole economic efficiency of enterprise.
Brief description of the drawings
Fig. 1 is the structural representation of apparatus of the present invention.
Embodiment
Further describe the present invention below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, the zinc providing in figure is smelted acid leaching residue precious metal recovery device, and it comprises zinc smelting system thickening pond underflow whipping appts 100, the first filter-pressing device 200, countercurrent washing device 300, the second filter-pressing device 400, slurrying device 500, floatation system 600.
Slurrying device 500 comprises the pulp agitation vat 510 of series operation, the agitation vat 520 of sizing mixing successively, promote agitation vat 530 and to slurry agitation vat 540.
Floatation system 600 comprise roughly select flotation column 610, selected flotation column 620, first is scanned flotation column 630, second and is scanned flotation column 640, medial launder 650,660,670,680.
The entrance of zinc smelting system thickening pond underflow whipping appts 100 is connected with the outlet of the underflow of zinc smelting system thickening pond 700, the outlet of zinc smelting system thickening pond underflow whipping appts 100 is connected with the entrance of the first filter-pressing device 200 by pipeline, the filtrate outlet of the first filter-pressing device 200 connects the entrance of stationary tank 800 by pipeline, the outlet of stationary tank 800 connects zinc smelting system.
The acid leaching residue outlet 220 of the first filter-pressing device 200 connects the entrance of countercurrent washing device 300, and the outlet of countercurrent washing device 300 connects the entrance of the second filter-pressing device 400.
The filtrate outlet 410 of the second filter-pressing device 400 connects the entrance of stationary tank 810, and the outlet of stationary tank 810 connects zinc smelting system on the one hand, connects countercurrent washing device 300 on the other hand by pipeline.
The press cake outlet 420 of the second filter-pressing device 400 connects the entrance of pulp agitation vat 510 by pipeline, the outlet of pulp agitation vat 510 connects the entrance of the agitation vat 520 of sizing mixing, the outlet of agitation vat 520 of sizing mixing connects the entrance that promotes agitation vat 530, the outlet that promotes agitation vat 530 connects the entrance to slurry agitation vat 540, connects the entrance of roughly selecting flotation column 610 in floatation system to the outlet of slurry agitation vat 540.
The rough floatation foam solution overflow port 611 of roughly selecting flotation column 610 connects the entrance of selected flotation column 620, and the rough floatation mine tailing outlet 612 of roughly selecting flotation column 610 connects the entrance of medial launder 650.The cleaner flotation foam solution overflow port 621 of selected flotation column 620 connects the entrance of medial launder 660, and the outlet of medial launder 660 connects the entrance of the first filtering equipment 900, the concentrate outlet 910 output concentrate of the first filtering equipment 900.
The outlet of medial launder 650 is connected to the first entrance of scanning flotation column 630, and first scans first of flotation column 630 scans after foam solution overflow port 631 connects with the cleaner tailings outlet 622 of selected flotation column 620 and be connected to slurry whipping appts 540 by pipeline.
First scans first of flotation column 630 scans mine tailing outlet 632 and is connected to the entrance of medial launder 670, the outlet of medial launder 670 is connected to the second entrance of scanning flotation column 640, second scans second of flotation column 640 scans foam solution overflow port 641 and is connected to medial launder 650 by pipeline, second scans second of flotation column 640 scans mine tailing outlet 642 and is connected to the entrance of medial launder 680, the outlet of medial launder 680 is connected to the entrance of thickener 1000, the concentrated mine tailing outlet 1100 of thickener 1000 is connected to the entrance of the second filtering equipment 2000, the mine tailing outlet 2100 output mine tailings of the second filtering equipment 2000, the washed ore pressing filtering liquid outlet 920 of the first filtering equipment 900, the press filtration supernatant liquor outlet 2200 of the second filtering equipment 2000, after merging, the concentrated supernatant outlet 1200 of thickener 1000 connects clear liquid storage tank 3000, supernatant liquor storage tank 3000 has a clear water and supplements mouth 3100 and be connected to countercurrent washing device 300 by pipeline, pulp whipping appts 510, roughly select flotation column 610, selected flotation column 620, first scans flotation column 630, second scans flotation column 640.
The principle of work of said apparatus is as follows:
Zinc smelting system thickening pond underflow is output acid leaching residue after the first filter-pressing device 200 press filtrations, filtrate (zinc solution) is returned to zinc smelting system, acid leaching residue carries out after countercurrent washing device 300 countercurrent washings, slough water-soluble zinc wherein, then send into the second filter-pressing device 400 and carry out press filtration, press filtration solution enters stationary tank 810, press cake enters 510 pulps of pulp agitation vat, then enter to size mixing successively agitation vat 520, promote agitation vat 530, to slurry agitation vat 540 further pulp, finally by give starch that agitation vat 540 enters floatation system 600 roughly select flotation column 610.
The rough floatation foam solution of roughly selecting flotation column 610 flows into selected flotation column 620, rough floatation mine tailing enters medial launder 650 and pumps into first again and scan flotation column 630, first scans foam solution and cleaner tailings merges and delivers to slurry agitation vat 540, pump into again and roughly select flotation column 610, the first and scan mine tailing and enter medial launder 670 and pump into again second and scan flotation column 640.
Second scans foam solution delivers to and after medial launder 650 merges with rough floatation mine tailing, pumps into first and scan flotation column 630, and cleaner flotation foam solution enters medial launder 660, then is pressed and considered to obtain concentrate product by the first filtering equipment 900.
Second scans mine tailing enters medial launder 680, then after concentrated by thickener 1000, sends into the second filtering equipment 2000 press filtrations and obtain product from failing.
The press filtration supernatant liquor of the washed ore pressing filtering liquid of the first filtering equipment 900, the concentrated supernatant of thickener 1000 and the second filtering equipment 2200 enters supernatant liquor stationary tank 300 after merging and collects, because the first filter-pressing device 400 a part of filtrate is out opened a way into zinc smelting system, this part of filtrate solution body accumulated amount is by forming flotation supernatant liquor to the interior supplementary clear water of supernatant liquor stationary tank 300.
A flotation supernatant liquor part is returned to countercurrent washing device 300 and is served as washings, another part turns back to the recycle of sizing mixing of pulp agitation vat, and remaining part enters and roughly select flotation column 610, roughly selects flotation column 610, selected flotation column 620, first is scanned flotation column 630, second and scanned flotation column 640.
The technology of the present invention economic target is excellent, non-wastewater discharge, and without tailings, environmental protection is good, has comprehensively reclaimed silver, gold, copper and water-soluble zinc, realizes maximizing the benefits.
Claims (6)
1. zinc is smelted acid leaching residue precious metal recovery process, it is characterized in that, concrete steps are:
1), by zinc smelting system thickening pond underflow through the acid leaching residue of press filtration output for the first time, the filtrate of the first press filtration is returned to zinc smelting system;
2), by the acid leaching residue countercurrent washing of step 1) output, washings obtains filtrate and press cake for the second time after press filtration for the second time, it is for subsequent use that press filtration solution enters for the second time the storage of press filtration solution stationary tank for the second time, press cake carries out pulp and obtains pulp liquid;
3), by step 2) the pulp liquid prepared sends into floatation system and carries out flotation, flotation obtains concentrate, mine tailing and flotation supernatant liquor, described flotation supernatant liquor is served clear liquid storage tank;
A part in the described solution of press filtration for the second time stationary tank for the second time press filtration solution is returned to zinc smelting system, the remaining solution of press filtration for the second time and a part of flotation supernatant liquor supplement with return to the clear water of the solution of press filtration for the second time same volume of zinc smelting system after the solution A part that obtains be back to step 2) in supplementary as washings; Another part solution A is sent into step 2) as sizing mixing recycle, remaining solution A is sent into floatation system recycle;
Described flotation comprises that rough floatation step, cleaner flotation step, first scan step, second and scan step, the rough floatation foam solution overflow that wherein rough floatation step forms enters cleaner flotation step and carries out selected, the rough floatation ore deposit that rough floatation step forms is sent in the first medial launder, supplement second scan that step forms second send into first after scanning foam solution and scan step; After the washed ore press filtration that cleaner flotation step obtains, obtain concentrate and washed ore pressing filtering liquid, the selected foam solution that cleaner flotation step obtains and first is scanned after foam solution merging is scanned in first of step generation and is back to pulp step; First scan that step produces first scan mine tailing and send in the second medial launder, after supplementary part solution A, give second and scan step, second scan that step produces second scan foam solution and send in the first medial launder, second scan that step obtains second scan mine tailing and after concentrated, press filtration, obtain mine tailing and concentrated supernatant, press filtration supernatant liquor, after concentrated supernatant, press filtration supernatant liquor and washed ore pressing filtering liquid merge, form flotation supernatant liquor and send into and serve clear liquid storage tank.
2. zinc as claimed in claim 1 is smelted acid leaching residue precious metal recovery process, it is characterized in that, described step 2) in pulp comprise successively pulp whipping step, the whipping step of sizing mixing, promote whipping step and give slurry whipping step, wherein before pulp step, supplement part solution A, supplement part solution A described to before starching step.
3. a zinc of realizing technique described in claim 1 and 2 is smelted acid leaching residue precious metal recovery device, it is characterized in that, comprise: zinc smelting system thickening pond underflow whipping appts, the first filter-pressing device, countercurrent washing device, the second filter-pressing device, slurrying device, floatation system, wherein the entrance of zinc smelting system thickening pond underflow whipping appts is connected with the underflow outlet of zinc smelting system thickening pond, the outlet of zinc smelting system thickening pond underflow whipping appts is connected with the entrance of the first filter-pressing device by pipeline, the filtrate outlet of the first filter-pressing device connects the entrance of the first stationary tank by pipeline, the outlet of the first stationary tank connects zinc smelting system, the acid leaching residue outlet of the first filter-pressing device connects the entrance of countercurrent washing device, the outlet of countercurrent washing device connects the entrance of the second filter-pressing device, the filtrate outlet of the second filter-pressing device connects the entrance of the second stationary tank, and the outlet of the second stationary tank connects zinc smelting system on the one hand, connects countercurrent washing device on the other hand by pipeline, the press cake outlet of the second filter-pressing device connects slurrying device entrance by pipeline, the entrance of the outlet floatation system of slurrying device, floatation system has concentrate outlet, the outlet of selected foam pressing filtering liquid, mine tailing outlet, concentrated supernatant outlet, the outlet of press filtration supernatant liquor, after selected foam pressing filtering liquid outlet, concentrated supernatant outlet and the outlet of press filtration supernatant liquor merge, connect clear liquid storage tank by pipeline, described supernatant liquor storage tank has supplementary mouthful an of clear water and is connected to floatation system, slurrying device and countercurrent washing device by pipeline.
4. zinc as claimed in claim 3 is smelted acid leaching residue precious metal recovery device, it is characterized in that, described slurrying device comprises the pulp agitation vat of series operation, the agitation vat of sizing mixing successively, promote agitation vat and to slurry agitation vat, wherein the entrance of pulp agitation vat connects the press cake outlet of the second filter-pressing device, connects floatation system to the outlet of slurry agitation vat.
5. zinc as claimed in claim 3 is smelted acid leaching residue precious metal recovery device, it is characterized in that, described floatation system comprises rough floatation device, cleaner flotation device, first scans device, second scans device, the first medial launder, the second medial launder, the 3rd medial launder, the 4th medial launder, the entrance of described rough floatation device is connected with the outlet of described slurrying device and supernatant liquor storage tank, rough floatation device also has rough floatation foam solution overflow port and the outlet of rough floatation mine tailing, the rough floatation foam solution overflow port of rough floatation device connects the entrance of cleaner flotation device, the outlet of rough floatation mine tailing connects the first medial launder, the entrance of cleaner flotation device is also connected with supernatant liquor storage tank, and this cleaner flotation device also has a cleaner flotation foam solution overflow port and cleaner tailings outlet, and cleaner flotation foam solution overflow port connects the second medial launder, and the second medial launder is also connected with the entrance of the first filtering equipment, the first filtering equipment also has concentrate outlet and the outlet of washed ore pressing filtering liquid, concentrate outlet output concentrate, the first entrance of scanning device connects the first medial launder on the one hand, connect on the other hand supernatant liquor storage tank, first scans device also has first and scans foam solution overflow port and first and scan mine tailing outlet, first scans after foam solution overflow port and cleaner tailings export and connect and is connected to the first medial launder by pipeline, and first scans mine tailing outlet connects the 3rd medial launder, the second entrance of scanning device connects the 3rd medial launder on the one hand, connect on the other hand supernatant liquor storage tank, second scans device also has second and scans foam solution overflow port and second and scan mine tailing outlet, and second scans foam solution overflow port is connected to the first medial launder by pipeline, second scans mine tailing outlet connects the 4th medial launder, the 4th medial launder is connected with the entrance of thickener, and thickener also has concentrated mine tailing outlet and concentrated supernatant outlet, and concentrated mine tailing outlet is connected with the entrance of the second filtering equipment, the second filtering equipment also has mine tailing outlet and the outlet of press filtration supernatant liquor, mine tailing outlet output mine tailing, the concentrated supernatant outlet of the washed ore pressing filtering liquid outlet of the first filtering equipment, the press filtration supernatant liquor outlet of the second filtering equipment and thickener connects clear liquid storage tank by pipeline and after connecing.
6. zinc as claimed in claim 5 is smelted acid leaching residue precious metal recovery device, it is characterized in that, described rough floatation device, cleaner flotation device, first are scanned device, second and scanned device and be flotation column.
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| CN201210368681.8A CN102899499B (en) | 2012-09-28 | 2012-09-28 | Process and device for recovering noble metals of zinc smelting acid leaching residues |
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| CN201210368681.8A CN102899499B (en) | 2012-09-28 | 2012-09-28 | Process and device for recovering noble metals of zinc smelting acid leaching residues |
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| CN103215456A (en) * | 2013-04-28 | 2013-07-24 | 湖南水口山有色金属集团有限公司 | Method for improving silver recovery rate of silver concentrate by improving separation concentration |
| CN104498729B (en) * | 2015-01-14 | 2016-04-06 | 南丹县南方有色金属有限责任公司 | The silver-colored flotation of a kind of reduction by two sections of filter-press residues moisture content methods |
| CN104722410B (en) * | 2015-02-16 | 2017-09-19 | 巴彦淖尔紫金有色金属有限公司 | The method that separating valuable metals are extracted from the high acid leach residue of wet method zinc abstraction output |
| CN104841564B (en) * | 2015-05-15 | 2017-08-18 | 西北矿冶研究院 | Lead-silver residue flotation combined collecting agent and application process thereof |
| CN111719050B (en) * | 2020-07-07 | 2021-11-05 | 昆明理工大学 | Method for comprehensively recovering water-soluble zinc and silver in zinc leaching residues |
| CN112337653A (en) * | 2020-10-18 | 2021-02-09 | 赤峰中色锌业有限公司 | Method for improving recovery rate of high leaching residue flotation silver |
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| US4372782A (en) * | 1981-05-20 | 1983-02-08 | Provincial Holdings Ltd. | Recovery of lead and silver from minerals and process residues |
| JPS5845339A (en) * | 1981-09-14 | 1983-03-16 | Toho Aen Kk | Treatment of zinc leached slag and secondarily leached residues from said slag |
| JP3625270B2 (en) * | 2000-07-06 | 2005-03-02 | 太平洋セメント株式会社 | Waste disposal method |
| CN101914682A (en) * | 2010-08-16 | 2010-12-15 | 胡学勇 | Method for recovering Zn, Pb and Ag from electrolytic zinc acid leaching slag |
| CN101972703B (en) * | 2010-10-27 | 2013-01-30 | 株洲市湘麒科技开发有限公司 | Beneficiation method for recovering zinc, lead and silver from zinc leaching residue |
| CN102191375A (en) * | 2011-05-03 | 2011-09-21 | 江西理工大学 | Technology for recycling gold and silver through direct flotation under high Zn<2+> concentration of zinc hydrometallurgy acid leaching pulp |
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