CN102583598A - Cycle production method for recovering zinc from beneficiation wastewater of high leaching slag - Google Patents
Cycle production method for recovering zinc from beneficiation wastewater of high leaching slag Download PDFInfo
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- CN102583598A CN102583598A CN2012100713495A CN201210071349A CN102583598A CN 102583598 A CN102583598 A CN 102583598A CN 2012100713495 A CN2012100713495 A CN 2012100713495A CN 201210071349 A CN201210071349 A CN 201210071349A CN 102583598 A CN102583598 A CN 102583598A
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- zinc
- beneficiation
- beneficiation wastewater
- extraction
- organic phase
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- 239000002351 wastewater Substances 0.000 title claims abstract description 53
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 title claims abstract description 47
- 229910052725 zinc Inorganic materials 0.000 title claims abstract description 46
- 239000011701 zinc Substances 0.000 title claims abstract description 46
- 239000002893 slag Substances 0.000 title claims abstract description 18
- 238000002386 leaching Methods 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title abstract 4
- 238000000605 extraction Methods 0.000 claims abstract description 32
- 238000000034 method Methods 0.000 claims abstract description 26
- 239000012074 organic phase Substances 0.000 claims abstract description 21
- 238000005188 flotation Methods 0.000 claims abstract description 9
- 238000002156 mixing Methods 0.000 claims abstract description 9
- 238000009858 zinc metallurgy Methods 0.000 claims description 10
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 9
- 238000005868 electrolysis reaction Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 9
- 239000002699 waste material Substances 0.000 claims description 9
- 239000003153 chemical reaction reagent Substances 0.000 claims description 8
- 238000010521 absorption reaction Methods 0.000 claims description 6
- 239000003610 charcoal Substances 0.000 claims description 6
- 238000007599 discharging Methods 0.000 claims description 6
- 238000004513 sizing Methods 0.000 claims description 4
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 3
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 3
- 239000002253 acid Substances 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 3
- 239000004571 lime Substances 0.000 claims description 3
- 235000011121 sodium hydroxide Nutrition 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 abstract description 8
- 238000011084 recovery Methods 0.000 abstract description 6
- 230000000694 effects Effects 0.000 abstract description 2
- 239000012071 phase Substances 0.000 abstract description 2
- 238000003723 Smelting Methods 0.000 abstract 3
- 239000010808 liquid waste Substances 0.000 abstract 2
- HQABUPZFAYXKJW-UHFFFAOYSA-N butan-1-amine Chemical compound CCCCN HQABUPZFAYXKJW-UHFFFAOYSA-N 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 4
- 238000009854 hydrometallurgy Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- 150000002739 metals Chemical class 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 206010067171 Regurgitation Diseases 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000003556 assay Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005363 electrowinning Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 239000011133 lead Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003472 neutralizing effect Effects 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 238000002791 soaking Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 description 1
- 229960001763 zinc sulfate Drugs 0.000 description 1
- 229910000368 zinc sulfate Inorganic materials 0.000 description 1
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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
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- Electrolytic Production Of Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses a cycle production method for recovering zinc from beneficiation wastewater of high leaching slag. A P204 extraction phase is utilized to extract solution containing the zinc, electrolytic liquid waste in zinc smelting electrolytic system is utilized to perform reextraction on a P204 extracted organic phase to enable the zinc in the P204 extracted organic phase to enter the electrolytic liquid waste, and strip liquor after deoiling returns back to a wet method zinc smelting leaching system. By means of the technical innovation, the cycle production method further improves comprehensive recovery level of enterprises, and recovered zinc can be conveniently utilized to existing facilities. The strip liquor after deoiling can directly return back to the wet method zinc smelting leaching system so that the process is free of pollution, recoverable zinc quantity is increased, and good economical benefits can be obtained. The cycle production method has mature technology, good effect on zinc recovery and low cost, an organic phase can be utilized cyclically, the strip liquor after deoiling can return back to a flotation dressing system for size mixing and recycle, and no wastewater is discharged.
Description
Technical field
The invention belongs in the zinc hydrometallurgy the recycle method of beneficiation wastewater, relate to specifically a kind ofly soak the circulation producing method that reclaims zinc the slag beneficiation wastewater from height.
Background technology
Annually in Zinc hydrometallurgy process all can produce a large amount of height and soak slag; With 210,000 tons of calculating of present annual output electrolytic zinc; Annual height soaks about 13.5 ten thousand tons of the generation of slag, and height soaks valuable metals such as argentiferous in the slag, zinc, lead, copper, because valuable metal content is low; The valuable metals such as silver in the slag soak to height in enterprise, adopt floatation process to reclaim height and soak the valuable metals such as silver in the slag.And in floatation process, can produce a large amount of beneficiation wastewater, and soak 13.5 ten thousand tons of calculating of slag generation with annual height, can produce about 600 tons~650 tons of beneficiation wastewater every day; Carrying out assay through beneficiation wastewater draws; Zinc content in the beneficiation wastewater is 16g/l~18g/l, and relative content is higher, has recovery value; Zinc form with zinc sulfate in beneficiation wastewater exists; Through to the ore-dressing technique process analysis, the PH of beneficiation wastewater is 4~4.5, and beneficiation wastewater contains beneficiation reagents such as butylamine black powder, pore forming material.All be beneficiation wastewater to be advanced sewage works carry out being recycled after the neutralizing treatment in the prior art, but this way of the prior art not only can cause the loss of the zinc in the beneficiation wastewater, also can increase the processing cost of beneficiation wastewater.If select suitable technology, the zinc in the beneficiation wastewater is reclaimed, not only can improve the recovery of enterprise's zinc, and can also improve economic benefit of enterprises.So how can provide a kind of soaks the slag beneficiation wastewater circulation producing method that reclaims zinc from height and becomes the urgent demand of zinc metallurgy enterprise.
Summary of the invention
The present invention is in order to overcome the deficiency that prior art exists, provide a kind of with low cost, zinc recovery is higher soaks the circulation producing method that reclaims zinc the slag beneficiation wastewater from height.
The present invention realizes through following technical scheme: a kind ofly soak the slag beneficiation wastewater circulation producing method that reclaims zinc from height, it comprises the steps:
A, beneficiation wastewater is carried out filtration treatment, make solid content in the beneficiation wastewater less than 10ppm;
B, handle, remove the beneficiation reagent in the beneficiation wastewater carrying out charcoal absorption through the beneficiation wastewater after the filtration treatment;
C, use P
204Extraction agent carries out extraction treatment to the zinc-containing solution of handling through charcoal absorption in extraction tank, in extraction process, add a small amount of caustic soda, to regulate percentage extraction as required, forms P
204Extracted organic phase and raffinate;
D, with the electrolysis waste solution of discharging in the zinc metallurgy electrolytic system to P
204The extracted organic phase processing of stripping makes P
204Zinc in the extracted organic phase gets into electrolysis waste solution and forms strip liquor;
Turn back to zinc metallurgy after e, the strip liquor of handling through stripping are handled through de-oiling and leach system;
F, handle the back through the raffinate of extraction treatment through de-oiling and get into the flotation beneficiation system and size mixing and utilize again, add in the process of sizing mixing in the lime and unnecessary acid;
G, the beneficiation wastewater of discharging through the flotation beneficiation system get into the waste water filtering pond, and beneficiation wastewater carries out recycle again.
Beneficiation reagent is butylamine black powder and pore forming material, and the content of said butylamine black powder and pore forming material all is controlled at below 1 mg/litre, gets into the beneficiation wastewater amount to reduce beneficiation reagent.
Foam is many in the concentrate pulp, and beneficiation reagent is also more relatively, filters this part beneficiation wastewater of back and directly squeezes into the ore dressing blended size system, does not get into extracting system, contains the high beneficiation wastewater of beneficiation reagent with minimizing and gets into extracting system.
The appropriate design extraction tank, minimizing is carried secretly, and sets up secondary clarifier, and prolonging settling time is to reduce organic phase to get into the major measure that leaches operation.When iron in organic phase run up to a certain degree after, need make organic phase vitality again to organic phase with hydrochloric acid soln back extraction iron.
The present invention utilizes P
204Extraction phase extracts zinc-containing solution, utilizes electrolysis waste solution in the zinc metallurgy electrolytic system to P
204Extracted organic phase is stripped, and makes P
204Zinc in the extracted organic phase gets into electrolysis waste solution, and strip liquor leaches system through turning back to zinc hydrometallurgy after the de-oiling.The organic phase recycle turns back to the flotation beneficiation system usefulness of sizing mixing again after the raffinate de-oiling.
The invention has the beneficial effects as follows: the present invention for enterprise through technological innovation; The beneficiation wastewater of exploring an economical rationality, advanced technology, technology environmental protection reclaims zinc and cycling and reutilization technology, further improves the comprehensive recovery levels of enterprise, and the zinc that the present invention reclaims can easily use in the existing facility; Strip liquor leaches system through can directly turning back to zinc hydrometallurgy after the de-oiling; Technology is pollution-free, increases recyclable zinc amount, and favorable economic benefit is arranged.Technology of the present invention is ripe, and the effect that reclaims zinc is better, with low cost, can turn back to the flotation beneficiation system after the raffinate de-oiling again and size mixing and utilize non-wastewater discharge again.
Description of drawings
To be that the present invention is a kind of soak the slag beneficiation wastewater extraction process flow figure of the circulation producing method that reclaims zinc from height to Fig. 1;
Fig. 2 is that a kind of material that soaks the slag beneficiation wastewater extraction system in the circulation producing method that reclaims zinc from height of the present invention moves towards synoptic diagram.
Embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is described in detail.
As shown in Figure 1, a kind ofly soak the slag beneficiation wastewater circulation producing method that reclaims zinc from height, it comprises the steps: a, beneficiation wastewater is carried out filtration treatment, makes solid content in the beneficiation wastewater less than 10ppm; B, handle, remove the beneficiation reagent in the beneficiation wastewater carrying out charcoal absorption through the beneficiation wastewater after the filtration treatment; C, use P
204Extraction agent carries out extraction treatment to the zinc-containing solution of handling through charcoal absorption in extraction tank, in extraction process, add a small amount of caustic soda, to regulate percentage extraction as required, forms P
204Extracted organic phase and raffinate; D, with the electrolysis waste solution of discharging in the zinc metallurgy electrolytic system to P
204The extracted organic phase processing of stripping makes P
204Zinc in the extracted organic phase gets into electrolysis waste solution and forms strip liquor; Turn back to zinc metallurgy after e, the strip liquor of handling through stripping are handled through de-oiling and leach system; F, handle the back through the raffinate of extraction treatment through de-oiling and get into the flotation beneficiation system and size mixing and utilize again, add in the process of sizing mixing in the lime and unnecessary acid; G, the beneficiation wastewater of discharging through the flotation beneficiation system get into the waste water filtering pond, and beneficiation wastewater carries out recycle again.
As shown in Figure 2; A kind of material trend of soaking the slag beneficiation wastewater extraction system in the circulation producing method that reclaims zinc from height of the present invention is as follows: the zinc-containing water of ore-sorting system output is delivered to extraction process; Get into extracting system with the feed liquid form; After extraction, the raffinate of discharge returns ore-sorting system again and uses; P after the extraction
204The electrolysis waste solution of load organic phases employing electrowinning process output is done sour regurgitation and is carried out back extraction, and strip liquor is delivered to zinc metallurgy and leached operation, and the blank organic phase that obtains after the back extraction is returned extraction again and carried zinc.The final purpose that realizes of this flow process is to be intermediary with the extracting system, the zinc in the beneficiation wastewater is passed to zinc metallurgy leach system.Behind the additional extraction process of the trend of beneficiation wastewater, the integrated artistic flow process forms ore-sorting system as shown in Figure 2, extracting system and three closed cycles of host system.
Should be noted that at last; Above content is only in order to explain technical scheme of the present invention; But not to the restriction of protection domain of the present invention; The simple modification that those of ordinary skill in the art carries out technical scheme of the present invention perhaps is equal to replacement, does not all break away from the essence and the scope of technical scheme of the present invention.
Claims (1)
1. one kind is soaked the slag beneficiation wastewater circulation producing method that reclaims zinc from height, and it is characterized in that: said circulation producing method comprises the steps:
A, beneficiation wastewater is carried out filtration treatment, make solid content in the beneficiation wastewater less than 10ppm;
B, handle, remove the beneficiation reagent in the beneficiation wastewater carrying out charcoal absorption through the beneficiation wastewater after the filtration treatment;
C, use P
204Extraction agent carries out extraction treatment to the zinc-containing solution of handling through charcoal absorption in extraction tank, in extraction process, add a small amount of caustic soda, to regulate percentage extraction as required, forms P
204Extracted organic phase and raffinate;
D, with the electrolysis waste solution of discharging in the zinc metallurgy electrolytic system to P
204The extracted organic phase processing of stripping makes P
204Zinc in the extracted organic phase gets into electrolysis waste solution and forms strip liquor;
Turn back to zinc metallurgy after e, the strip liquor of handling through stripping are handled through de-oiling and leach system;
F, handle the back through the raffinate of extraction treatment through de-oiling and get into the flotation beneficiation system and size mixing and utilize again, add in the process of sizing mixing in the lime and unnecessary acid;
G, the beneficiation wastewater of discharging through the flotation beneficiation system get into the waste water filtering pond, and beneficiation wastewater carries out recycle again.
Priority Applications (1)
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CN2012100713495A CN102583598A (en) | 2012-03-19 | 2012-03-19 | Cycle production method for recovering zinc from beneficiation wastewater of high leaching slag |
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CN2012100713495A CN102583598A (en) | 2012-03-19 | 2012-03-19 | Cycle production method for recovering zinc from beneficiation wastewater of high leaching slag |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103146918A (en) * | 2013-03-29 | 2013-06-12 | 云南金鼎锌业有限公司 | Process for directly producing electrolytic zinc from zinc extraction liquid |
CN103301929A (en) * | 2013-03-29 | 2013-09-18 | 云南金鼎锌业有限公司 | Selective zinc oxide leaching and weak acidic zinc sulfide flotation smelting and selection combining process |
CN103521504A (en) * | 2013-10-25 | 2014-01-22 | 赤峰中色锌业有限公司 | Method for comprehensively recovering gold and zinc from high leaching residue and recycling wastewater |
CN105779763A (en) * | 2016-05-27 | 2016-07-20 | 赤峰中色锌业有限公司 | Method for extracting zinc from high-cadmium zinc-contained mineral separation tailing water and preparing electric zinc |
CN105838886A (en) * | 2016-05-27 | 2016-08-10 | 赤峰中色锌业有限公司 | Method for extracting and recycling zinc from beneficiation tailing water of lead silver residues of zinc hydrometallurgy |
CN112195344A (en) * | 2020-10-18 | 2021-01-08 | 赤峰中色锌业有限公司 | Method for extracting and recovering zinc from high leaching residue flotation tailing water |
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Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103146918A (en) * | 2013-03-29 | 2013-06-12 | 云南金鼎锌业有限公司 | Process for directly producing electrolytic zinc from zinc extraction liquid |
CN103301929A (en) * | 2013-03-29 | 2013-09-18 | 云南金鼎锌业有限公司 | Selective zinc oxide leaching and weak acidic zinc sulfide flotation smelting and selection combining process |
CN103301929B (en) * | 2013-03-29 | 2015-03-25 | 云南金鼎锌业有限公司 | Smelting and selection combined process of selective zinc oxide leaching and weak acidic zinc sulfide flotation |
CN103521504A (en) * | 2013-10-25 | 2014-01-22 | 赤峰中色锌业有限公司 | Method for comprehensively recovering gold and zinc from high leaching residue and recycling wastewater |
CN105779763A (en) * | 2016-05-27 | 2016-07-20 | 赤峰中色锌业有限公司 | Method for extracting zinc from high-cadmium zinc-contained mineral separation tailing water and preparing electric zinc |
CN105838886A (en) * | 2016-05-27 | 2016-08-10 | 赤峰中色锌业有限公司 | Method for extracting and recycling zinc from beneficiation tailing water of lead silver residues of zinc hydrometallurgy |
CN112195344A (en) * | 2020-10-18 | 2021-01-08 | 赤峰中色锌业有限公司 | Method for extracting and recovering zinc from high leaching residue flotation tailing water |
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Application publication date: 20120718 |