CN1047888A - A kind of method of lead anode slurry wet processing - Google Patents
A kind of method of lead anode slurry wet processing Download PDFInfo
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- CN1047888A CN1047888A CN89103853A CN89103853A CN1047888A CN 1047888 A CN1047888 A CN 1047888A CN 89103853 A CN89103853 A CN 89103853A CN 89103853 A CN89103853 A CN 89103853A CN 1047888 A CN1047888 A CN 1047888A
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- silver
- copper
- anode slurry
- antimony
- lead anode
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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
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Abstract
A kind of method of lead anode slurry wet processing, its method is that material is placed hydrochloric acid medium, in 10-50 ℃, feeds chlorine and makes the oxidation reduction potential control of system carry out the selectivity leaching at 400-450mV.According to material feature, after the chlorination leached mud can be handled with sodium hydroxide solution, the method-electrorefining of starting to exchange fire got product silver, gold; After also can aqueous solution chlorination carrying gold, again with wet method or pyrogenic process desilver.Direct yield silver 96~97.5%, gold 98%~.Chloridizing leach solution reclaims antimony with hydrolysis method, and reduction precipitation method reclaims arsenic, complexing seperation copper and bismuth, antimony.The rate of recovery: antimony 〉=90%, bismuth 〉=93%, copper 〉=93%, arsenic 90%.
Description
A kind of method of lead anode slurry wet processing the invention relates to precious metal hydrometallurgy.
Lead anode slurry is one of main raw material that extracts precious metal silver and gold, and traditional treatment process is a pyrogenic process.Lead anode slurry gets precious metals containing lead, flue dust and shoddye through retailoring, and precious metals containing lead oxidation refining deleading divides slightly silver-coloredly silver-colored, and thick silver-colored electrolysis gets product silver.The shortcoming of pyrogenic process is silver-colored direct yield lower (85~90%), and part silver is dispersed in flue dust and the slag with copper, antimony, bismuth, arsenic, and flue dust and slag are difficult, the comprehensive difficulty that reclaims." extracting precious metal from the anode sludge " (application number 85106670 of people such as the bear Zong Guo of Kunming Institute of Precious Metals invention with the CONTROLLED POTENTIAL method, applying date 85.8.31, obtained power), proposed to extract from lead, antimony, nickel anode mud the method for precious metal with the CONTROLLED POTENTIAL method, system places 4~6NHCl and 1~1.4N NaCl medium with material, 75~85 ℃ of temperature, add NaClO and make the oxidation reduction potential control of system carry out the selectivity leaching at 400~460mV; Chloridizing with controlled voltage leaches gold once more.Provide one to be used for the precious metals metallurgy process and to extract, enrichment separates the effective ways of high and low metal.But this method chloridizing with controlled voltage must and have in the hydrochloric acid medium of NaCl 75~85 ℃ of temperature and carries out, and has aggravated the corrodibility of chloride media to equipment; Extraction to silver is not goed deep into; Copper, antimony, bismuth, plumbous comprehensive recovery are not related to.
The objective of the invention is to propose a lead anode slurry wet processing general flow, can separate high and low metal effectively, gold and silver rate of recovery height, copper, antimony, bismuth, lead also can comprehensively reclaim, and is little to equipment corrosion, free from environmental pollution.
Method provided by the present invention, be that said lead anode slurry material is placed 2.5~5N, preferably in the 3NHCl medium, solid (weight): liquid (volume)=1: 4~8, preferably under 1: 6 condition, 10~50 ℃ of temperature, best~20 ℃, make the oxidation reduction potential control of system carry out the selectivity leaching at 400~450mV by feeding chlorine, make copper, antimony, bismuth, arsenic change solution over to, gold and silver and lead are stayed in the slag.Potential value can be measured with the platinum electrode saturated calomel electrode, and the control of potential range is controlled by control chlorine feeding amount.Chlorine is the most frequently used, the most cheap chlorizating agent, owing to avoid adding salt chlorizating agent such as NaCl and process is carried out at normal temperature, greatly reduces the solution loss of silver.Chlorination process need not heat, and both save energy has alleviated the burden of equipment anticorrosion again, helps the selection of equipment material.Contain the low and silver-colored output of gold when big at material, the chlorination leached mud with 5~20% preferably 10% NaOH solution at 80~90 ℃, best 85 ℃ were leached 1~2 hour, make silver, lead change silver suboxide, plumbous oxide into, tellurium and plumbous part are deviate from, silver and further enrichment of gold make down to go on foot the improvement that matter has been arranged than traditional thermal process when getting silver-colored au-alloy plate with the soda melting, get silver-colored, golden product by electrorefining then.The thick silver of direct yield 〉=97.5%, thick gold 〉=98%.When material contained the higher and silver-colored output of gold and hangs down, leached mud can be carried gold by aqueous solution chlorination, reduce behind the proof gold, wet method or pyrogenic process desilver again.
Chloridizing with controlled voltage gained leach liquor be concentrated into original volume 1/8~1/10 with recovery part acid, add hot water hydrolytic precipitation antimony, logical again SO
2After the arsenic precipitation.With 100~200g/l Na
2SO
3, 150g/l preferably, at 10~50 ℃, ℃ handle to PH3.5~4.5 best~30, makes the copper complexing, and antimony, bismuth are precipitated fully, and copper separates more complete with antimony, bismuth.The copper complex liquid destroys the copper network with NaClO or other oxygenant oxidations again and closes And neutralization precipitation copper.Direct yield: copper 〉=93%, antimony 〉=90%, bismuth 〉=93% waste liquid content: Cu1~3mg/l, Sb30~50mg/l, Bi1~5mg/l, Pb<1mg/l, As<0.5mg/l.
The immersion liquid of lead anode slurry alkali feeds Cl
2Or SO
2Behind the precipitation lead, contain NaClO or Na in the solution
2SO
3, can return the copper treatment process and use.
Advantage of the present invention is: (1) wet processing, and operation is few, and the cycle is short.(2) change according to silver, gold content in the chlorination leached mud, was connected with traditional firing method process again after both can alkali soaking extract silver-colored, golden; Also can use the subsequent extraction gold and silver of wet process.(3) agents useful for same is cheap and easy to get.(4) precious metal rate of recovery height, base metal also can comprehensively reclaim.(5) corrodibility is little, and equipment easily solves.(6) waste liquid reaches emission standard, and environmental pollution is little.(7) the 1A of the present invention method of separating high and low metal can also be used for the high and low metal separation of noble liquid cyanide zinc displacement gained gold mud, antimony electrolysis anode sludge, the anode mud of copper electroplating except that handling lead anode slurry.
Embodiment one, content are (weight %): Ag14, Au0.003, Cu8, Sb40, Bi6, Pb10, the low golden lead anode slurry of As1 is at 3NHCl, temperature~20 ℃, solid (weight): under liquid (volume)=1: 6 condition, feed the chlorine CONTROLLED POTENTIAL and leached 2 hours at 400~450mV; Chlorination leached mud 10%NaOH solution, 1 hour De Fuyin oxidation sludge is handled in temperature~85 ℃, and rich silver-colored oxidation sludge must contain the thick silver of Ag>98%, silver-colored direct yield 〉=97.5% through the soda melting; After hydrochloric acid leachate is concentrated into 1/8 recovery part acid of original volume, dilute hydrolytic precipitation antimony, use the Na of 150g/l then
2SO
3Solution ℃ is handled to PH3.5~4.5 in temperature~30, and antimony, bismuth precipitate fully, separate with copper; The copper complex liquid adds the NaClO oxidation, is neutralized to PH8~9 again, and copper promptly precipitates fully, direct yield: antimony>90%, bismuth>94% bronze medal>93%.
Embodiment two: content (weight %) is Au0.77, Ag7.76, and Cu4.96, Sb29.22, Bi11, Pb13.20, the high golden lead anode slurry of As16 is by example one condition CONTROLLED POTENTIAL chlorination; The rich silver of gained, golden slag leach gold with the aqueous solution known chlorination process, golden chlorated liquid with oxalic acid reduce the gold of purity 99.99%, direct yield 98%; Soak golden slag when silver yields poorly, with known ammonia soak-the hydrazine hydrate reduction method gets fine silver, silver-colored direct yield 96%, when silver-colored output is high, be smelted into thick silver but soak golden slag use-case one same procedure with soda, thick electrorefining of silver gets fine silver, and And reclaims remaining gold from silver electrolysis anode slime; The earlier logical SO of chloridizing with controlled voltage leach liquor
2Arsenic precipitation is used then with example one same steps as and is handled recovery antimony, bismuth, copper, the rate of recovery: arsenic 〉=90%, antimony 〉=90%, bismuth 〉=93%, copper 〉=93%.
The present invention is not limited to the foregoing description.
Claims (4)
1, a kind of method of lead anode slurry wet processing is characterized in that:
A. the lead anode slurry material is placed 2.5~5NHCl medium, solid (weight): liquid is (under the condition of (volume)=1: 4~8,10~50 ℃ of temperature, make the oxidation reduction potential control of system carry out the selectivity leaching at 400~450mV by feeding chlorine, the gained leached mud can extract gold and silver respectively with known wet processing;
B. A. gained leached mud was leached 1~2 hour at 80~90 ℃ with 5~20% NaOH solution, make silver and plumbous transition state, tellurium leaches, plumbous part leaching, and precious metal is enrichment again, and gained alkali soaks slag can obtain fine silver, proof gold with known pyrometallurgical smelting, electrolysis;
C. A. gained leach liquor is concentrated recovery part hydrochloric acid, add hot water dilution precipitation antimony, logical SO
2Arsenic precipitation is with 100~200g/lNa
2SO
3, 10~50 ℃ of networks of temperature close copper And and make antimony, bismuth precipitation fully, and the copper complex liquid can destroy the copper network with NaClO (or other oxygenants) oxidation and close thing And neutralization precipitation copper;
D. B. gained leach liquor feeding chlorine or feeding sulfurous gas are made plumbous precipitation, solution can return the C. operation and use.
2, the method handled of lead anode slurry as claimed in claim 1, when it is characterized in that carrying out the 1A process, the oxidation reduction potential control of said system is at 400~450mV, temperature~20 ℃, 3~4NHCl, solid (weight): liquid (volume)=1: 6.
3, lead anode slurry treatment process as claimed in claim 1, when it is characterized in that carrying out the 1B process, gained leached mud 10%NaOH solution was handled 1 hour for~85 ℃.
4, lead anode slurry treatment process as claimed in claim 1 at the arsenic post precipitation, is used the Na of concentration 150g/l when it is characterized in that carrying out the 1C process
2SO
3Solution, ℃ handle to P temperature~30
H3.5~4.5.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN89103853A CN1020755C (en) | 1989-06-03 | 1989-06-03 | Wet method for treating lead anode slurry |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN89103853A CN1020755C (en) | 1989-06-03 | 1989-06-03 | Wet method for treating lead anode slurry |
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Publication Number | Publication Date |
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CN1047888A true CN1047888A (en) | 1990-12-19 |
CN1020755C CN1020755C (en) | 1993-05-19 |
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ID=4855322
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CN89103853A Expired - Fee Related CN1020755C (en) | 1989-06-03 | 1989-06-03 | Wet method for treating lead anode slurry |
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CN (1) | CN1020755C (en) |
Cited By (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1045794C (en) * | 1996-09-16 | 1999-10-20 | 昆明贵金属研究所 | Method for extracting gold, silver and valuable metals from high-arsenic lead anode mud |
CN1045795C (en) * | 1996-09-16 | 1999-10-20 | 昆明贵金属研究所 | Method for recovering platinum and lead from anode slime of hydrogen peroxide production by electrolysis |
CN101321881B (en) * | 2006-12-20 | 2010-07-21 | 哈萨克斯坦共和国矿物原料复合加工国有企业东方有色金属矿业冶金研究 | Method for processing lead-containing materials |
CN101787440A (en) * | 2010-03-29 | 2010-07-28 | 广西华锡集团股份有限公司 | Method for wet processing of high antimony-lead anode mud |
CN101886174A (en) * | 2010-06-23 | 2010-11-17 | 郴州雄风稀贵金属材料股份有限公司 | Process for refining high-purity bismuth from bismuth-containing material generated from anode mud recovery |
CN102041387A (en) * | 2009-10-09 | 2011-05-04 | 郑雅杰 | Method for enriching gold and silver by floating anode mud and recycling antimony and bismuth |
CN102219193A (en) * | 2010-04-16 | 2011-10-19 | 北京矿冶研究总院 | Method for separating and recovering tellurium from copper-tellurium solution |
CN102286663A (en) * | 2011-08-19 | 2011-12-21 | 北京矿冶研究总院 | Treatment method of copper-containing gold mud |
CN102417989A (en) * | 2011-11-24 | 2012-04-18 | 上海第二工业大学 | Method for extracting metallic lead from recovered waste lead-containing glass |
CN102912143A (en) * | 2012-11-13 | 2013-02-06 | 云南天浩稀贵金属股份有限公司 | Method for comprehensively treating indium-containing lead anode slime through whole wet process |
CN103205577A (en) * | 2013-04-12 | 2013-07-17 | 杭州电子科技大学 | Method for extracting and separating lead from waste lead-containing glass |
CN104968810B (en) * | 2012-10-03 | 2018-03-30 | 奥图泰(芬兰)公司 | The method that silver is reclaimed in residue is leached from the zinc of sulfur-bearing |
CN107937724A (en) * | 2017-11-25 | 2018-04-20 | 贵溪三元金属有限公司 | A kind of method that bismuth is refined from slag bismuth oxide |
-
1989
- 1989-06-03 CN CN89103853A patent/CN1020755C/en not_active Expired - Fee Related
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1045795C (en) * | 1996-09-16 | 1999-10-20 | 昆明贵金属研究所 | Method for recovering platinum and lead from anode slime of hydrogen peroxide production by electrolysis |
CN1045794C (en) * | 1996-09-16 | 1999-10-20 | 昆明贵金属研究所 | Method for extracting gold, silver and valuable metals from high-arsenic lead anode mud |
CN101321881B (en) * | 2006-12-20 | 2010-07-21 | 哈萨克斯坦共和国矿物原料复合加工国有企业东方有色金属矿业冶金研究 | Method for processing lead-containing materials |
CN102041387A (en) * | 2009-10-09 | 2011-05-04 | 郑雅杰 | Method for enriching gold and silver by floating anode mud and recycling antimony and bismuth |
CN101787440A (en) * | 2010-03-29 | 2010-07-28 | 广西华锡集团股份有限公司 | Method for wet processing of high antimony-lead anode mud |
CN101787440B (en) * | 2010-03-29 | 2011-08-10 | 广西华锡集团股份有限公司 | Method for wet processing of high antimony-lead anode mud |
CN102219193B (en) * | 2010-04-16 | 2013-07-31 | 北京矿冶研究总院 | Method for separating and recovering tellurium from copper-tellurium solution |
CN102219193A (en) * | 2010-04-16 | 2011-10-19 | 北京矿冶研究总院 | Method for separating and recovering tellurium from copper-tellurium solution |
CN101886174A (en) * | 2010-06-23 | 2010-11-17 | 郴州雄风稀贵金属材料股份有限公司 | Process for refining high-purity bismuth from bismuth-containing material generated from anode mud recovery |
CN102286663A (en) * | 2011-08-19 | 2011-12-21 | 北京矿冶研究总院 | Treatment method of copper-containing gold mud |
CN102286663B (en) * | 2011-08-19 | 2012-12-26 | 北京矿冶研究总院 | Treatment method of copper-containing gold mud |
CN102417989A (en) * | 2011-11-24 | 2012-04-18 | 上海第二工业大学 | Method for extracting metallic lead from recovered waste lead-containing glass |
CN104968810B (en) * | 2012-10-03 | 2018-03-30 | 奥图泰(芬兰)公司 | The method that silver is reclaimed in residue is leached from the zinc of sulfur-bearing |
CN102912143A (en) * | 2012-11-13 | 2013-02-06 | 云南天浩稀贵金属股份有限公司 | Method for comprehensively treating indium-containing lead anode slime through whole wet process |
CN102912143B (en) * | 2012-11-13 | 2014-03-12 | 云南天浩稀贵金属股份有限公司 | Method for comprehensively treating indium-containing lead anode slime through whole wet process |
CN103205577A (en) * | 2013-04-12 | 2013-07-17 | 杭州电子科技大学 | Method for extracting and separating lead from waste lead-containing glass |
CN107937724A (en) * | 2017-11-25 | 2018-04-20 | 贵溪三元金属有限公司 | A kind of method that bismuth is refined from slag bismuth oxide |
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Publication number | Publication date |
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CN1020755C (en) | 1993-05-19 |
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