CN102441497A - High lead, zinc, copper and gold concentrate direct cyanidation and comprehensive recovery production method - Google Patents
High lead, zinc, copper and gold concentrate direct cyanidation and comprehensive recovery production method Download PDFInfo
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- CN102441497A CN102441497A CN2011103256088A CN201110325608A CN102441497A CN 102441497 A CN102441497 A CN 102441497A CN 2011103256088 A CN2011103256088 A CN 2011103256088A CN 201110325608 A CN201110325608 A CN 201110325608A CN 102441497 A CN102441497 A CN 102441497A
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Abstract
The invention relates to a high lead, zinc, copper and gold concentrate direct cyanidation and comprehensive recovery production method. Cyanidation process, lead sorting process, zinc sorting process and copper sorting process are combined, cyanidation leaching and lead and zinc sorting are completed under the same ore pulp system, copper sorting is completed in an independent system, and accordingly separation flotation under a unified system is realized. By the aid of the method, process flow is shortened, furthermore, production cost is lowered, and the method is easy in popularization and application.
Description
Technical field
The present invention relates to directly to carry out plumbous zinc-copper separating flotation without press filtration after direct cyaniding of a kind of high plumbous zinc-copper Gold Concentrate under Normal Pressure and mine tailing wash and comprehensively reclaim production method.
Background technology
At present, the Gold Concentrate under Normal Pressure of relevant leaded zinc-copper comprehensively reclaims multielement, and the technology of generally taking is after earlier Gold Concentrate under Normal Pressure being carried out cyaniding; After washing of ore pulp process and the press filtration, size mixing again, carry out plumbous zinc then and mix choosing; Plumbous zinc mix after the choosing the mine tailing slurry carry out press filtration, size mixing again, carry out copper sulphur content again and leave.The press filtration of each section flotation of ore pulp is established one's own system, and does not mix each other.This sampling technology is provided with long flow path, and complex equipments causes production cost high.
Summary of the invention
Technical problem to be solved by this invention is; Direct cyaniding of a kind of high plumbous zinc-copper Gold Concentrate under Normal Pressure and the comprehensive production method that reclaims are provided, and cyaniding leaching and selecting plumbum and zinc are accomplished under same ore pulp system, select copper to become an individual system separately; To simplify technological process, reduce production costs.
It is following that the present invention solves the problems of the technologies described above the technical scheme that is adopted:
Direct cyaniding of a kind of high plumbous zinc-copper Gold Concentrate under Normal Pressure and the comprehensive production method that reclaims is characterized in that carrying out according to following steps:
The first step, cyaniding: concentration is to add sodium cyanide solution in the Gold Concentrate under Normal Pressure ore pulp of 35-40%, mog-400 order 90-92%; Make ore pulp liquid contain free cyanogen root concentration in the 0.7-0.75% scope; Your liquid is used to extract gold and silver, and cyaniding tailing slurry got into for second step;
Second step, choosing lead: cyaniding tailing slurry enters into and selects lead system, pulp density 38-40% after washing; PH value 10-11 at first suppresses zinc with zinc sulfate and sodium carbonate, and consumption is respectively 1Kg/t ore deposit and 3kg/t ore deposit; Add collecting agent butyl xanthate 80g/t ore deposit then, diethyldithiocarbamate 80g/t ore deposit; After the lead concentrate ore pulp press filtration that floatingly selects, obtain lead concentrate and filtrating, wherein filtrating is returned cyanidation system, and the plumbous mine tailing slurry after the flotation entered into for the 3rd step;
The 3rd step, select zinc: select the mine tailing slurry behind the lead; Use earlier sulfuric acid to transfer pH value to be 9.0-9.5; The hydrogen cyanide that produces in the process returns use after absorbing with alkali lye; Add collecting agent butyl xanthate 200g/t ore deposit then and carry out flotation, and zinc concentrate ore pulp and the mine tailing ore pulp that floatingly selects carried out press filtration respectively, obtain zinc concentrate and zinc mine tailing; The zinc mine tailing of the cupric after the press filtration got into for the 4th step, and filtrating is returned cyanidation system;
The 4th goes on foot, selects copper: the mine tailing of the cupric that the 3rd step obtained is starched through press filtration, and sizes mixing to concentration 30-35%; Add sulfuric acid earlier and transfer pH8.0-8.5, add adjustment agent sodium carbonate 3kg/t ore deposit again, carry out flotation at last, add collecting agent butyl xanthate 150g/t ore deposit,
Butylamine black powder 30g/t ore deposit; Concentrate slurry obtains copper concentrate through press filtration, and the mine tailing slurry obtains the sulphur concentrate through press filtration.
Good effect of the present invention is:
The present invention at first utilizes each mineral that disinthibite of the cyanogen in the system, reaches the purpose of separating flotation, rather than removes to destroy cyanogen, reaches no cyanogen system and carries out flotation again; The 2nd,, realize that cyanide pulp just can select plumbous zinc without press filtration, this is the technology that prior art does not have; The 3rd,, select zinc not use copper sulphate to adopt raw ore slurry directly to add the sulfuric acid agent that adjusts, with the zinc that deactivates of the copper in the system, this be domestic and international unique under the cyaniding system regime of agent of activated zinc; The 4th,, the whole retrieval systems of the filtrating after the flotation, individual processing has not only guaranteed the normal of cyanidation technology, has guaranteed the normal operation of floatation process yet, has practiced thrift cost simultaneously, makes economic benefit obtain maximization.
The specific embodiment
Further specify the present invention below in conjunction with instance.
Below be that actual production process is given an example.
The first step, cyaniding: owing to be impure high Gold Concentrate under Normal Pressure; Adopted the high concentration sodium cyanide solution; The concentration that ore pulp liquid contains free cyanogen root is 0.70-0.75% (mass percent); Pulp density is 35-40% (mass percent), and mog reaches 90-92% for-400 orders, and conventional zinc dust precipitation technology is adopted in the gold and silver displacement.And obtain cyaniding tailing slurry, got into for second step.
Second step, choosing lead: cyaniding tailing slurry is after carrying out the three-tray thickener countercurrent washing, and ore pulp enters into and selects lead system through peristaltic pump.Pulp density is adjusted into 38-40%, and pH value 10-11 at first suppresses zinc with zinc sulfate and sodium carbonate, and consumption is respectively 1Kg/t ore deposit and 3kg/t ore deposit, adds collecting agent butyl xanthate 80g/t ore deposit, diethyldithiocarbamate 80g/t ore deposit then.After the lead concentrate ore pulp press filtration that floatingly selects, obtain lead concentrate and filtrating, lead concentrate is used for selling, and filtrating is returned cyanidation system.Mine tailing slurry after the flotation entered into for the 3rd step.
The 3rd step, select zinc: select the mine tailing slurry behind the lead, adjust with sulfuric acid earlier, make pH9.0-9.5, the hydrogen cyanide that produces in the process returns use with alkali lye (sodium hydroxide solution) absorption.Add collecting agent butyl xanthate 200g/t ore deposit then and carry out flotation, and zinc concentrate ore pulp and the mine tailing ore pulp that floatingly selects carried out press filtration respectively, obtain zinc concentrate and be used for selling, the mine tailing slurry of cupric got into for the 4th step, and filtrating is returned cyanidation system.
The 4th goes on foot, selects copper: the mine tailing of the cupric that the 3rd step obtained is starched through press filtration, and sizes mixing with article liquid, and concentration is 30-35% (mass percent).Add sulfuric acid earlier and transfer pH8.0-8.5, add adjustment agent sodium carbonate 3kg/t ore deposit again, carry out flotation at last, add collecting agent butyl xanthate 150g/t ore deposit, butylamine black powder 30g/t ore deposit.Concentrate slurry obtains copper concentrate through press filtration and is used for selling, and the mine tailing slurry obtains the sulphur concentrate through press filtration and is used for selling.
It below is testing result tabulation in the actual production.
Wherein table 1 is the testing result of the cyaniding tailing slurry that obtains of the first step.
Table 2 is testing results of second lead concentrate that obtain of step.
Table 3 is testing results of selecting the mine tailing slurry behind the lead.
Table 4 is testing results of the 3rd zinc concentrate that obtain of step.
Table 5 is that the zinc mine tailing that obtained in the 3rd step is starched the testing result of (promptly get into the 4th and go on foot the flotation raw ore that selects the copper flow process).
Table 6 is testing results of the 4th copper concentrate that obtain of step.
Table 7 is testing results of the 4th sulphur concentrate that obtain of step.
Detect explanation: the detection data in each month all are the testing result mean value of 60 duplicate samples in (1), each table, and this 60 duplicate samples derives from 20 working days of this month, 3 parts of every days.
(2), used detection method is following:
The mensuration GB/T 7739.1-2003 of Gold Concentrate under Normal Pressure chemical analysis method gold amount and silver amount
The plumbous amount of the assay method two EDTA volumetric determinations GB/T 7739.5-2003 of the plumbous amount of Gold Concentrate under Normal Pressure chemical analysis method
Assay method two thio sulfate methods of Gold Concentrate under Normal Pressure chemical analysis method copper amount are measured copper amount GB/T 7739.4-2003
The assay method two EDTA volumetric determination zinc amount GBT 7739.6-2003 of Gold Concentrate under Normal Pressure chemical analysis method zinc amount
(3), testing result analysis:
The testing result of table 1 has reflected the cyanogen cinder grade, the one, and to the detection of cyaniding effect, the 2nd, the purpose mineral grade that entering selects the lead system raw ore to contain is done an analysis.
The testing result of table 2 is analyses that the lead concentrate grade is done, and the result shows the standard that has reached the lead concentrate sale, has also shown the damaed cordition of copper zinc mineral in lead concentrate.
The testing result of table 3 is to the analysis of selecting the plumbum floatation tailings grade to do, and the plumbous selected grade that presses down the inhibition situation of zinc-copper and the zinc mineral that the zinc flow process is selected in entering of lead minerals damaed cordition and choosing has been provided the statement that quantizes.
The testing result of table 4 is analyses that the zinc concentrate grade is done, and the result shows the sale standard that has reached zinc concentrate, has also shown the damaed cordition of copper mineral in zinc concentrate.
The testing result of table 5 is analyses that flotation zinc tailings grade is done, and the damaed cordition and the selected grade of selecting zinc to press down the inhibition situation of copper and the copper mineral that the copper flow process is selected in entering of zinc mineral has been provided the statement of quantification.
The testing result of table 6 is analyses that the copper concentrate grade is done, and the result shows the sale standard that has reached copper concentrate.
The testing result of table 7 is analyses that Floatation of Copper mine tailing (being the sulphur concentrate) grade is done, and the damaed cordition of copper mineral and sulfur-bearing grade have been provided the statement that quantizes.
Claims (1)
1. the direct cyaniding of one kind high plumbous zinc-copper Gold Concentrate under Normal Pressure and comprehensively recovery production method is characterized in that carrying out according to following steps:
The first step, cyaniding: concentration is to add sodium cyanide solution in the Gold Concentrate under Normal Pressure ore pulp of 35-40%, mog-400 order 90-92%; Make in the ore pulp liquid contain free cyanogen radical amount in the 0.7-0.75% scope; Your liquid is used to extract gold and silver, and cyaniding tailing slurry got into for second step;
Second step, choosing lead: cyaniding tailing slurry enters into and selects lead system, pulp density 38-40% after washing; PH value 10-11 at first suppresses zinc with zinc sulfate and sodium carbonate, and consumption is respectively 1Kg/t ore deposit and 3kg/t ore deposit; Add collecting agent butyl xanthate 80g/t ore deposit then, diethyldithiocarbamate 80g/t ore deposit; After the lead concentrate ore pulp press filtration that floatingly selects, obtain lead concentrate and filtrating, wherein filtrating is returned cyanidation system, and the mine tailing slurry after the flotation entered into for the 3rd step;
The 3rd step, select zinc: select the mine tailing slurry behind the lead; Transfer pH to 9.0-9.5 with sulfuric acid earlier; The hydrogen cyanide that produces in the process returns use after absorbing with alkali lye; Add collecting agent butyl xanthate 200g/t ore deposit then and carry out flotation, and zinc concentrate ore pulp and the mine tailing ore pulp that floatingly selects carried out press filtration respectively, obtain zinc concentrate and zinc mine tailing; The zinc mine tailing slurry of cupric got into for the 4th step, and filtrating is returned cyanidation system;
The 4th goes on foot, selects copper: the mine tailing of the cupric that the 3rd step obtained is starched through press filtration, and sizes mixing to concentration 30-35%; Add sulfuric acid earlier and transfer pH8.0-8.5, add adjustment agent sodium carbonate 3kg/t ore deposit again, carry out flotation at last, add collecting agent butyl xanthate 150g/t ore deposit, butylamine black powder 30g/t ore deposit; Concentrate slurry obtains copper concentrate through press filtration, and the mine tailing slurry obtains the sulphur concentrate through press filtration.
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728476A (en) * | 2012-06-18 | 2012-10-17 | 山东国大黄金股份有限公司 | Flotation method for comprehensively recycling zinc from tailings generated by directly cyaniding gold concentrates |
| CN102784713A (en) * | 2012-07-18 | 2012-11-21 | 山东国大黄金股份有限公司 | Method for recycling multiple elements of liquid after cyanided tailing flotation |
| CN103230839A (en) * | 2013-05-17 | 2013-08-07 | 山东黄金矿业(莱州)有限公司精炼厂 | Comprehensive recovery production method with gold concentrate flotation and cyanide flotation |
| CN103894281A (en) * | 2012-12-28 | 2014-07-02 | 北京有色金属研究总院 | Flotation and metallurgy combined process for treatment of copper-zinc sulfide and zinc oxide mixed ores |
| CN105170309A (en) * | 2015-10-12 | 2015-12-23 | 长春黄金研究院 | Lead and zinc separation method for polymetal gold-bearing ores |
| CN106140453A (en) * | 2016-08-02 | 2016-11-23 | 长春黄金研究院 | A kind of copper-lead zinc separation method of gold-bearing complex ore |
| CN110876986A (en) * | 2019-10-29 | 2020-03-13 | 内蒙古金陶股份有限公司 | Comprehensive recovery method of gold cyanided tailings |
| CN112517223A (en) * | 2020-10-27 | 2021-03-19 | 西北矿冶研究院 | Enrichment method of low-quality copper-zinc bulk concentrate |
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| CN101507951A (en) * | 2009-03-24 | 2009-08-19 | 西藏中凯矿业有限公司 | Mineral separation process capable of separating copper, lead, zinc polymetal sulphide ore |
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| US4545963A (en) * | 1982-09-29 | 1985-10-08 | Sherritt Gordon Mines Limited | Process for separately recovering zinc and lead values from zinc and lead containing sulphidic ore |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728476A (en) * | 2012-06-18 | 2012-10-17 | 山东国大黄金股份有限公司 | Flotation method for comprehensively recycling zinc from tailings generated by directly cyaniding gold concentrates |
| CN102784713A (en) * | 2012-07-18 | 2012-11-21 | 山东国大黄金股份有限公司 | Method for recycling multiple elements of liquid after cyanided tailing flotation |
| CN102784713B (en) * | 2012-07-18 | 2013-12-04 | 山东国大黄金股份有限公司 | Method for recycling multiple elements of liquid after cyanided tailing flotation |
| CN103894281A (en) * | 2012-12-28 | 2014-07-02 | 北京有色金属研究总院 | Flotation and metallurgy combined process for treatment of copper-zinc sulfide and zinc oxide mixed ores |
| CN103894281B (en) * | 2012-12-28 | 2016-06-15 | 北京有色金属研究总院 | A kind of selecting smelting combination technique processing copper sulfide zinc and zinc oxide composite ore |
| CN103230839A (en) * | 2013-05-17 | 2013-08-07 | 山东黄金矿业(莱州)有限公司精炼厂 | Comprehensive recovery production method with gold concentrate flotation and cyanide flotation |
| CN105170309A (en) * | 2015-10-12 | 2015-12-23 | 长春黄金研究院 | Lead and zinc separation method for polymetal gold-bearing ores |
| CN106140453A (en) * | 2016-08-02 | 2016-11-23 | 长春黄金研究院 | A kind of copper-lead zinc separation method of gold-bearing complex ore |
| CN110876986A (en) * | 2019-10-29 | 2020-03-13 | 内蒙古金陶股份有限公司 | Comprehensive recovery method of gold cyanided tailings |
| CN110876986B (en) * | 2019-10-29 | 2021-10-22 | 内蒙古金陶股份有限公司 | Comprehensive recovery method of gold cyanided tailings |
| CN112517223A (en) * | 2020-10-27 | 2021-03-19 | 西北矿冶研究院 | Enrichment method of low-quality copper-zinc bulk concentrate |
| CN112517223B (en) * | 2020-10-27 | 2022-11-08 | 西北矿冶研究院 | Enrichment method of low-quality copper-zinc bulk concentrate |
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Effective date of registration: 20171218 Address after: 261441, No. 888, dragon village, Jin Town, Yantai City, Shandong, Laizhou Patentee after: Shandong gold smelting Co., Ltd. Address before: 261441 Jincheng Jiaojia, Laizhou City, Yantai, Shandong Patentee before: Shandong Gold Mine (Laizhou) Co., Ltd. Refinery |