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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 PDF

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Publication number
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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CN
China
Prior art keywords
zinc
beneficiation
beneficiation wastewater
extraction
organic phase
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Pending
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CN2012100713495A
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Chinese (zh)
Inventor
李龙
马永涛
王凤朝
张春明
李连中
刘玉芹
马青龙
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.)
CHINA NONFERROUS METAL INDUSTRY'S FOREIGN ENGINEERING AND CONSTRUCTION Co Ltd
CHINA NONFERROUS METAL MINING (GROUP) Co Ltd
CHIFENG NFC ZINC Co Ltd
Original Assignee
CHINA NONFERROUS METAL INDUSTRY'S FOREIGN ENGINEERING AND CONSTRUCTION Co Ltd
CHINA NONFERROUS METAL MINING (GROUP) Co Ltd
CHIFENG NFC ZINC Co Ltd
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Application filed by CHINA NONFERROUS METAL INDUSTRY'S FOREIGN ENGINEERING AND CONSTRUCTION Co Ltd, CHINA NONFERROUS METAL MINING (GROUP) Co Ltd, CHIFENG NFC ZINC Co Ltd filed Critical CHINA NONFERROUS METAL INDUSTRY'S FOREIGN ENGINEERING AND CONSTRUCTION Co Ltd
Priority to CN2012100713495A priority Critical patent/CN102583598A/en
Publication of CN102583598A publication Critical patent/CN102583598A/en
Pending legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P10/00Technologies related to metal processing
    • Y02P10/20Recycling

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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

A kind ofly soak the slag beneficiation wastewater circulation producing method that reclaims zinc from height
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.
CN2012100713495A 2012-03-19 2012-03-19 Cycle production method for recovering zinc from beneficiation wastewater of high leaching slag Pending CN102583598A (en)

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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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Application Number Priority Date Filing Date Title
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Cited By (6)

* Cited by examiner, † Cited by third party
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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JP3620640B2 (en) * 1999-08-25 2005-02-16 日鉱金属株式会社 Zinc recovery method
CN1837380A (en) * 2006-04-18 2006-09-27 祥云县飞龙实业有限责任公司 Wet process for recovery of zinc entrained in zinc leaching slag
CN101041520A (en) * 2007-03-23 2007-09-26 长沙矿冶研究院 Treatment method for recycling zinc electrolysis washing wastewater
CN101818262A (en) * 2009-12-23 2010-09-01 株洲冶炼集团股份有限公司 Method for removing chlorine from solution of zinc sulfate
CN101913720A (en) * 2010-08-04 2010-12-15 湖南有色金属研究院 Method for treating and recycling lead-zinc sulfide ore dressing wastewater

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Publication number Priority date Publication date Assignee Title
JP3620640B2 (en) * 1999-08-25 2005-02-16 日鉱金属株式会社 Zinc recovery method
CN1837380A (en) * 2006-04-18 2006-09-27 祥云县飞龙实业有限责任公司 Wet process for recovery of zinc entrained in zinc leaching slag
CN101041520A (en) * 2007-03-23 2007-09-26 长沙矿冶研究院 Treatment method for recycling zinc electrolysis washing wastewater
CN101818262A (en) * 2009-12-23 2010-09-01 株洲冶炼集团股份有限公司 Method for removing chlorine from solution of zinc sulfate
CN101913720A (en) * 2010-08-04 2010-12-15 湖南有色金属研究院 Method for treating and recycling lead-zinc sulfide ore dressing wastewater

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Cited By (7)

* Cited by examiner, † Cited by third party
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