CN101451196B - Wet-smelting method of copper and zinc bulk concentrate - Google Patents
Wet-smelting method of copper and zinc bulk concentrate Download PDFInfo
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- CN101451196B CN101451196B CN2007101930205A CN200710193020A CN101451196B CN 101451196 B CN101451196 B CN 101451196B CN 2007101930205 A CN2007101930205 A CN 2007101930205A CN 200710193020 A CN200710193020 A CN 200710193020A CN 101451196 B CN101451196 B CN 101451196B
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- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
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Abstract
The invention discloses a wet-method smelting method for copper-zinc bulk concentrate, which comprises the following steps: refractory low-grade copper-zinc bulk concentrate is subjected to sulfurization roasting first, and flue gas is recovered and used for preparing a sulfuric acid; roasted residue is leached out in a pickling tank; leached pulp is subjected to thickening and washing to obtain coarse feed liquid for standby; thickened underflow is subjected to filtration and washing to obtain filtrate, and filter residue is recovered; the coarse feed liquid and the filtrate are subjected tofine filtration to obtain fine filtrate; raffinate obtained by extracting the fine filtrate by an extractant A is used for recovering zinc, and extract is sent to an electrodeposition workshop section, and subjected to back-extraction to obtain a copper-rich electrolyte; an insoluble anode electrodeposition method is adopted to obtain cathode copper; copper raffinate is neutralized by alkaline until the pH value is between 3 and 6 and subjected to impurity removal, and extracted by an extractant B to obtain zinc extract; the zinc extract is subjected to back-extraction to obtain zinc-rich electrolyte; and the insoluble anode electrodeposition method is adopted to obtain cathode zinc. The method recovers useful elements in the ores with low cost and high quality, namely not only recoveringthe copper with high yield but also recovering the zinc with high yield, avoids resource waste, greatly improves the surrounding environment, and eliminates zinc pollution.
Description
Technical field
The present invention relates to a kind of wet-smelting method of copper and zinc bulk concentrate, belong to technical field of wet metallurgy.
Background technology
The smelting process of copper and zinc bulk concentrate mainly contains following two kinds at present: 1, pyrometallurgical smelting: with copper and zinc bulk concentrate and Wingdale is 1 by weight: the mixed of 0.16-0.25 is granulated; Sintering temperature in 800-850 ℃ on chain-type sintering furnace becomes piece; Through molten refining, emit smart copper from the copper mouth, reclaim zinc oxide in flue gas, the main drawback of this kind method is the energy consumption height, pollution is big, cost is high, foreign matter content is big, quality product is low, and the grade of ore also had higher requirement (copper 18%, zinc 45%), the scope of application is less.2, hydrometallurgy: select low-grade copper zinc ore, additive (Wingdale) baking mixed difficulty, in fired slags, add H
2SO
4Be used to leach copper, adopt extraction-electrodeposition method to obtain cathode copper again, this kind method has only reclaimed copper, remaining material is dropped as refuse, treatment process mostly is stores up landfill etc., and some direct air storage has not only taken a large amount of soils, also exist leaching toxicity, easily surface water or underground water are polluted; This kind method is the cost height not only, and resource has also been caused waste, in addition surrounding environment is also exerted a certain influence.
Summary of the invention
The object of the present invention is to provide a kind of wet-smelting method of copper and zinc bulk concentrate, to reach the useful element in the low-cost and high-quality ground recovery ore.
To achieve these goals, technical scheme of the present invention has adopted a kind of wet-smelting method of copper and zinc bulk concentrate, may further comprise the steps: select the low-grade copper zinc bulk concentrate earlier through sulfurization roasting difficulty, flue gas reclaims and is used to make sulfuric acid, fired slags leaches in pickling tank, ore pulp after the leaching through dense, wash to such an extent that coarse fodder liquid is standby, the underflow after dense after filtration, wash filtrate, filter residue reclaims; Coarse fodder liquid and filtrate obtain smart filtrate through the essence filter, the raffinate of smart filtrate after extraction agent A extraction is used to reclaim zinc, extraction liquid send electrodeposition workshop section, extraction liquid obtains rich copper electrode liquid after back extraction, wherein, reverse-extraction agent is a cupric: 30-40g/L, and the solution of sulfuric acid: 160-180g/L adopts the electrowinning with insoluble anode method to obtain cathode copper; The copper raffinate obtains the zinc extraction liquid through extraction agent B extraction then with the alkali pH value removal of impurities when being 3-6 that neutralizes, and the zinc extraction liquid obtains rich zinc electric effusion through back extraction, wherein, reverse-extraction agent is to contain zinc: 30-50g/L, the solution of sulfuric acid: 130-140g/L adopts the electrowinning with insoluble anode method to obtain cathode zinc.
Described maturing temperature is 900-1150 ℃.
Described rich copper electrode liquid adopts the electrowinning with insoluble anode legal system to get cathode copper, and wherein anode adopts the Pb alloy material, and negative electrode is a copper starting sheet, and current density is 100-200A/m
2, bath voltage is 1.5-3V.
Described rich zinc electric effusion adopts the electrowinning with insoluble anode legal system to get cathode zinc, and wherein anode adopts the Pb alloy material, and negative electrode is a zinc beginning pole plate, is 100-700A/m in current density
2
Described fired slags leaches in pickling tank, wherein H
2SO
4Concentration is 1M.
Described extraction agent A is a Lix type extraction agent.Be preferably Lix84-1 type extraction agent.
Described extraction agent B is a P type extraction agent.Be preferably P17 type extraction agent.
Adopt method of the present invention, not only expanded copper zinc mixing precision processing grade (copper 1-18%, zinc 5-45%) the scope of application, reclaimed to low-cost and high-quality the useful element in the ore, promptly be recovered to copper with high yield, reclaimed again and obtained zinc, avoided the wasting of resources, improve surrounding environment greatly, eliminated zinc pollution.Adopt method of the present invention can year reclaim 600 tons on zinc, surplus the output value 1,800 ten thousand yuan.Method technological process of the present invention is simple, has favorable social and economic worth, is easy to apply.
Description of drawings
Fig. 1 is a process flow sheet of the present invention.
Embodiment
As shown in Figure 1, wet-smelting method of copper and zinc bulk concentrate of the present invention may further comprise the steps: select the low-grade copper zinc bulk concentrate earlier through sulfurization roasting difficulty, maturing temperature is 1000 ℃, and flue gas reclaims and is used to make sulfuric acid, and fired slags is containing H
2SO
4Concentration is to leach in the pickling tank of 1M,, the washing dense of the ore pulp after the leaching through thickener, it is standby that beneficial flow liquid flows into the coarse fodder pond, thickener underflow be pumped into the adhesive tape type filter filter, wash filtrate, the filter residue recovery; Coarse fodder liquid and filtrate obtain smart filtrate through the essence filter, smart filtrate pump is sent into extraction plant, and the raffinate after the extraction of Lix84-1 type extraction agent is used to reclaim zinc, and extraction liquid send electrodeposition workshop section, extraction liquid obtains rich copper electrode liquid after back extraction, wherein, reverse-extraction agent is cupric 35g/L, the solution of sulfuric acid 170g/L, adopt the electrowinning with insoluble anode method to obtain cathode copper, wherein anode adopts the Pb alloy material, and negative electrode is a copper starting sheet, and current density is 150A/m
2, bath voltage is 1.5V.The copper raffinate is removal of impurities in 4 o'clock with the alkali pH value that neutralizes, obtain the zinc extraction liquid through the extraction of P17 type extraction agent then, the zinc extraction liquid obtains rich zinc electric effusion through back extraction, wherein, reverse-extraction agent is to contain zinc 40g/L, the solution of sulfuric acid 135g/L, adopt the electrowinning with insoluble anode method to obtain cathode zinc, wherein anode adopts the Pb alloy material, and negative electrode is a zinc beginning pole plate, and current density is 500A/m
2
It should be noted last that: above embodiment is the unrestricted technical scheme of the present invention in order to explanation only, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the art is to be understood that: still can make amendment or be equal to replacement the present invention, and not breaking away from any modification or partial replacement of the spirit and scope of the present invention, it all should be encompassed in the middle of the claim scope of the present invention.
Claims (3)
1. wet-smelting method of copper and zinc bulk concentrate is characterized in that: may further comprise the steps: select the low-grade copper zinc bulk concentrate earlier through sulfurization roasting difficulty, maturing temperature is 900-1150 ℃, and flue gas reclaims and is used to make sulfuric acid, and fired slags is containing H
2SO
4Concentration is to leach in the pickling tank of 1M, the ore pulp after the leaching through dense, wash to such an extent that coarse fodder liquid is standby, the underflow after dense after filtration, wash filtrate, filter residue reclaims; Coarse fodder liquid and filtrate obtain smart filtrate through the essence filter, and the raffinate of smart filtrate after the extraction of Lix84-1 type extraction agent is used to reclaim zinc, and extraction liquid send electrodeposition workshop section, and extraction liquid obtains rich copper electrode liquid after back extraction, adopt the electrowinning with insoluble anode method to obtain cathode copper; The copper raffinate obtains the zinc extraction liquid through the extraction of P17 type extraction agent then with the alkali pH value removal of impurities when being 3-6 that neutralizes, and the zinc extraction liquid obtains rich zinc electric effusion through back extraction, adopts the electrowinning with insoluble anode method to obtain cathode zinc.
2. wet-smelting method of copper and zinc bulk concentrate according to claim 1, it is characterized in that: described rich copper electrode liquid adopts the electrowinning with insoluble anode legal system to get cathode copper, wherein anode adopts the Pb alloy material, and negative electrode is a copper starting sheet, and current density is 100-200A/m
2, bath voltage is 1.5-3V.
3. wet-smelting method of copper and zinc bulk concentrate according to claim 1, it is characterized in that: described rich zinc electric effusion adopts the electrowinning with insoluble anode legal system to get cathode zinc, wherein anode adopts the Pb alloy material, and negative electrode is a zinc beginning pole plate, is 100-700A/m in current density
2
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| Application Number | Priority Date | Filing Date | Title |
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| CN2007101930205A CN101451196B (en) | 2007-12-03 | 2007-12-03 | Wet-smelting method of copper and zinc bulk concentrate |
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| CN2007101930205A CN101451196B (en) | 2007-12-03 | 2007-12-03 | Wet-smelting method of copper and zinc bulk concentrate |
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| CN101451196A CN101451196A (en) | 2009-06-10 |
| CN101451196B true CN101451196B (en) | 2010-08-11 |
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Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102031379A (en) * | 2010-12-14 | 2011-04-27 | 东营方圆有色金属有限公司 | Electro-deposition treatment process for copper separation solution |
| CN105821443A (en) * | 2016-05-10 | 2016-08-03 | 胡桂生 | Production process of cathode copper |
| CN107723460B (en) * | 2017-10-23 | 2019-03-19 | 湖南华信稀贵科技股份有限公司 | A kind of smelting process of complex lead-zinc copper mine |
| CN110318072A (en) * | 2018-03-29 | 2019-10-11 | 荆门市格林美新材料有限公司 | The extracting method of tough cathode is extracted in a kind of cobalt concentrate |
| CN109355498B (en) * | 2018-11-22 | 2021-02-19 | 长春黄金研究院有限公司 | Process method for recovering copper from low-grade copper oxide ore |
| CN109777958A (en) * | 2019-01-02 | 2019-05-21 | 江西思远再生资源有限公司 | A kind of technique of the comprehensive reutilization valuable metal from material containing zinc |
| CN109913658A (en) * | 2019-04-04 | 2019-06-21 | 昆明理工大学 | A method of the pickle liquor of smelting smoke dust containing arsenical copper arsenic, copper, Zn-Ca series separation and recycling |
| CN111020176A (en) * | 2019-12-23 | 2020-04-17 | 昆明理工大学 | Method for combined recovery and utilization of copper-lead-zinc oxygen-sulfur mixed ore through dressing and smelting |
| CN111659530B (en) * | 2020-06-16 | 2021-03-23 | 昆明理工大学 | Method for dressing, smelting, recovering and separating continuous growth type copper-lead-zinc sulfide ore |
| CN114959262A (en) * | 2022-05-27 | 2022-08-30 | 中国恩菲工程技术有限公司 | Method for extracting metal copper and zinc from copper-zinc mixed ore in combined manner |
| CN115074527A (en) * | 2022-05-27 | 2022-09-20 | 中国恩菲工程技术有限公司 | Method for treating copper-zinc mixed ore |
| CN114950005A (en) * | 2022-06-29 | 2022-08-30 | 格林爱科(荆门)新能源材料有限公司 | Recovery system and recovery method for ternary positive electrode precursor production regeneration waste liquid |
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| CN1113521A (en) * | 1994-06-13 | 1995-12-20 | 北京矿冶研究总院 | Method for removing copper from nickel electrolysis anolyte by solvent extraction and purification |
| CN1113520A (en) * | 1994-06-13 | 1995-12-20 | 北京矿冶研究总院 | Hydrometallurgical process for the recovery of copper and zinc from copper and zinc materials |
| US6846346B1 (en) * | 1999-08-30 | 2005-01-25 | Joma Chemicals As | Sulfatization process for metal extraction from sulfide ores |
| CN100999782A (en) * | 2006-11-27 | 2007-07-18 | 紫金矿业集团股份有限公司 | Comprehensive recovering process of multimetal sulfide mineral |
-
2007
- 2007-12-03 CN CN2007101930205A patent/CN101451196B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1113521A (en) * | 1994-06-13 | 1995-12-20 | 北京矿冶研究总院 | Method for removing copper from nickel electrolysis anolyte by solvent extraction and purification |
| CN1113520A (en) * | 1994-06-13 | 1995-12-20 | 北京矿冶研究总院 | Hydrometallurgical process for the recovery of copper and zinc from copper and zinc materials |
| US6846346B1 (en) * | 1999-08-30 | 2005-01-25 | Joma Chemicals As | Sulfatization process for metal extraction from sulfide ores |
| CN100999782A (en) * | 2006-11-27 | 2007-07-18 | 紫金矿业集团股份有限公司 | Comprehensive recovering process of multimetal sulfide mineral |
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Address after: 472500, Jincheng Road, Lingbao City, Henan, Sanmenxia 20 Patentee after: Lingbao Jinyuan Mining Co.,Ltd. Address before: 472500, Jincheng Road, Lingbao City, Henan Province, No. 20 Patentee before: Lingbao City Jinyuan Mining Co., Ltd. |