CN102002586B - Nickel-containing high-cobalt sulfide leaching technology - Google Patents
Nickel-containing high-cobalt sulfide leaching technology Download PDFInfo
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- CN102002586B CN102002586B CN201010572744A CN201010572744A CN102002586B CN 102002586 B CN102002586 B CN 102002586B CN 201010572744 A CN201010572744 A CN 201010572744A CN 201010572744 A CN201010572744 A CN 201010572744A CN 102002586 B CN102002586 B CN 102002586B
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Abstract
一种含镍高钴硫化物浸出工艺，通过常压预热、加压浸出，得到富集金属钴的浸出液可直接进入钴生产系统，工艺流程各段为a）将所述含镍高钴硫化物在10-20g/l的稀硫酸溶液中进行浆化，控制稀硫酸体积与所述含镍高钴硫化物质量之比为6：1，浆化温度为40-50℃，浆化时间为2～3h，浆化终点硫酸浓度为5-15g/l；b）控制常压预热温度为80～85℃；c）控制加压浸出：控制稀硫酸体积与所述含镍高钴硫化物质量之比为6：1，反应温度为145～165℃，浸出氧分压为0.20－0.25MPa，反应时间为6～8h。本发明得到含钴大于50g/l的镍、钴硫酸盐溶液，即含镍高钴硫化物料中98%以上的Ni、Co被浸出而进入溶液。
A nickel-containing high-cobalt sulfide leaching process, through normal pressure preheating and pressurized leaching, the leaching solution enriched in metal cobalt can be directly entered into the cobalt production system. The material is slurried in a dilute sulfuric acid solution of 10-20g/l, the ratio of the volume of dilute sulfuric acid to the mass of the nickel-containing high-cobalt sulfide is controlled to be 6:1, the slurrying temperature is 40-50°C, and the slurrying time is 2 to 3 hours, the concentration of sulfuric acid at the end of slurrying is 5-15g/l; b) control the normal pressure preheating temperature to 80-85°C; c) control pressure leaching: control the volume of dilute sulfuric acid and the nickel-containing high-cobalt sulfide The mass ratio is 6:1, the reaction temperature is 145-165°C, the leaching oxygen partial pressure is 0.20-0.25MPa, and the reaction time is 6-8h. The invention obtains a nickel and cobalt sulfate solution containing more than 50 g/l of cobalt, that is, more than 98% of Ni and Co in the nickel-containing high-cobalt sulfide material are leached and enter the solution.
Description
Technical field
The present invention relates to a kind of metallurgical technology of handling nickeliferous high cobalt sulfuration material.
Background technology
The main chemical constitution of nickeliferous high cobalt material is (specifically seeing table 1) such as Ni, Co, Cu, S; And have Co, the higher characteristics of S of containing, adopt methods such as ordinary method such as normal pressure acidleach, sulfurization roasting-acidleach to handle all to exist that the metal direct yield is low, tooling cost is high and the problem of operating environment difference.
The nickeliferous high cobalt sulfuration material composition (%) of table 1.
| Element | Ni | Cu | Fe | Co | S | NH 4 + |
| Content | 29.8 | 0.41 | 0.23 | 20.7 | 27.6 | 0.99 |
Summary of the invention
The objective of the invention is to adopt ordinary method to handle the deficiency that exists, a kind of new leaching metallurgical technology of handling nickeliferous high cobalt sulfuration material is provided, make that Ni, the Co more than 98% got into solution by leaching in the nickeliferous high cobalt sulfuration material to nickeliferous high cobalt sulfide.
The objective of the invention is to realize through following technical scheme: a kind of nickeliferous high cobalt sulfide extract technology, leach through normal pressure preheating, pressurization, the leach liquor that obtains the enriched in metals cobalt can directly get into the cobalt production system, and each section of technical process is specific as follows:
A) said nickeliferous high cobalt sulfide is carried out pulp in the dilution heat of sulfuric acid of 10-20 g/l; Control dilute sulphuric acid volume is 6:1 with the ratio of said nickeliferous high cobalt sulfide quality; The pulp temperature is 40-50 ℃, and the pulp time is 2～3h, and pulp terminal point sulfuric acid concentration is 5-15 g/l;
B) control normal pressure preheating temperature is 80～85 ℃;
C) the control pressurization is leached: control dilute sulphuric acid volume is 6:1 with the ratio of said nickeliferous high cobalt sulfide quality, and temperature of reaction is 145～165 ℃, and the leaching oxygen partial pressure is 0.20-0.25MPa, and the reaction times is 6～8h.
Because nickeliferous high cobalt sulfide contains Cu, Fe is lower; Therefore the present invention is through adopting normal pressure preheating, pressure leaching process; Make total slag rate be about 1%; Thereby guaranteed Ni, the higher leaching yield of Co, obtained containing nickel, the cobalt sulfate liquor of cobalt greater than 50g/l, Ni, Co in the promptly nickeliferous high cobalt sulfuration material more than 98% are got into solution by leaching.This solution directly send the cobalt production system to produce the cobalt product.
In addition, the present invention is simple efficient, an eco-friendly flow process, is fit to handle nickeliferous high cobalt sulfuration material.
Description of drawings
Fig. 1 is a principle flow chart of the present invention.
Embodiment
Below in conjunction with accompanying drawing the present invention and effect thereof are further described.
A kind of nickeliferous high cobalt sulfide extract technology leaches through normal pressure preheating, pressurization, and the leach liquor that obtains the enriched in metals cobalt can directly get into the cobalt production system, and its each section of technical process is characterised in that:
A) nickeliferous high cobalt sulfide is carried out pulp in the dilution heat of sulfuric acid of sulfur acid 10-20 g/l; The ratio 6:1 of control dilute sulphuric acid volume and said nickeliferous high cobalt sulfide quality; The pulp temperature is 40-50 ℃, and the pulp time is 2～3h, and pulp terminal point sulfuric acid concentration is 5-15 g/l.
B) control normal pressure preheating temperature is 80～85 ℃.
C) the control pressurization is leached: control dilute sulphuric acid volume is 6:1 with the ratio of said nickeliferous high cobalt sulfide quality, and temperature of reaction is 145～165 ℃, and the leaching oxygen partial pressure is 0.20-0.25MPa, and the reaction times is 6～8h.
Concrete work flow of the present invention is: the preceding liquid (acid solution) of nickeliferous high cobalt sulfuration material and preparation carries out the pulp operation earlier; Ore pulp after the pulp is after the normal pressure leaching vat are heated preheating; Be delivered to the autoclave leaching of pressurizeing through force (forcing) pump, pressurization is leached the back ore pulp through filtering with plate and frame(type)filter press behind the flash drum cooling decompression, and filter residue returns pyrogenic attack; The filtrating part is returned the preceding liquid (acid solution) of preparation, and all the other send the cobalt production system.
The present invention produces result of implementation and sees table 2,3.
Table 2 leach liquor composition (g/l)
| Element | Ni | Co | H + |
| Composition | 74.09 | 54.21 | 0.38 |
Table 3 leached mud composition (%)
| Element | Ni | Cu | Fe | Co | S |
| Content | 13.6 | 4.34 | 2.71 | 6.98 | 13.9 |
Claims (1)
1. nickeliferous high cobalt sulfide extract technology, this nickeliferous high cobalt sulfide is nickeliferous 29.8%, copper 0.41%; Iron 0.23%, cobalt 20.7%, sulphur 27.6%; Ammonium radical ion 0.99%; It is characterized in that: leach through normal pressure preheating, pressurization, the leach liquor that obtains the enriched in metals cobalt can directly get into the cobalt production system, and each section of technical process is specific as follows:
A) said nickeliferous high cobalt sulfide is carried out pulp in the dilution heat of sulfuric acid of 10-20 g/l; Control dilute sulphuric acid volume is 6:1 with the ratio of said nickeliferous high cobalt sulfide quality; The pulp temperature is 40-50 ℃, and the pulp time is 2～3h, and pulp terminal point sulfuric acid concentration is 5-15 g/l;
B) control normal pressure preheating temperature is 80～85 ℃;
C) the control pressurization is leached: control dilute sulphuric acid volume is 6:1 with the ratio of said nickeliferous high cobalt sulfide quality, and temperature of reaction is 145～165 ℃, and the leaching oxygen partial pressure is 0.20-0.25MPa, and the reaction times is 6～8h.
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| CN201010572744A CN102002586B (en) | 2010-12-04 | 2010-12-04 | Nickel-containing high-cobalt sulfide leaching technology |
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| CN201010572744A CN102002586B (en) | 2010-12-04 | 2010-12-04 | Nickel-containing high-cobalt sulfide leaching technology |
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| CN102002586B true CN102002586B (en) | 2012-09-26 |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102492858A (en) * | 2011-12-22 | 2012-06-13 | 河南省冶金研究所有限责任公司 | Method for separating enriched nickel and cobalt from battery waste leaching solution |
| CN102634677B (en) * | 2012-04-13 | 2014-01-15 | 金川集团有限公司 | Method for recovering cobalt in cobalt-rich matte leaching liquid |
| CN106399682A (en) * | 2016-09-23 | 2017-02-15 | 中国恩菲工程技术有限公司 | Method for extracting valuable metal from copper, cobalt and nickel sulfide |
| CN108950199A (en) * | 2018-07-13 | 2018-12-07 | 兰州金川新材料科技股份有限公司 | A method of it being used for the nickel and cobalt solution of synthesis of ternary presoma using the preparation of nickel sulfide cobalt ore |
| CN116356157A (en) * | 2023-04-03 | 2023-06-30 | 西安陕鼓动力股份有限公司 | A kind of equipment and method for treating ore slurry before and after wet acid leaching reaction of laterite nickel ore |
| CN116516171A (en) * | 2023-04-03 | 2023-08-01 | 西安陕鼓动力股份有限公司 | Method for preheating, temperature-reducing and pressure-reducing ore pulp in wet acid leaching of laterite-nickel ore |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186524A (en) * | 1995-06-07 | 1998-07-01 | 康明柯工程服务有限公司 | Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulfide minerals |
| CN1392902A (en) * | 2000-09-18 | 2003-01-22 | 英科有限公司 | Recovery of nickel and cobalt values from sulfidic flotation concentrate by chloride assisted oxidative pressure leaching in sulfuric acid |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1186524A (en) * | 1995-06-07 | 1998-07-01 | 康明柯工程服务有限公司 | Chloride assisted hydrometallurgical extraction of nickel and cobalt from sulfide minerals |
| CN1392902A (en) * | 2000-09-18 | 2003-01-22 | 英科有限公司 | Recovery of nickel and cobalt values from sulfidic flotation concentrate by chloride assisted oxidative pressure leaching in sulfuric acid |
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Effective date of registration: 20240618 Address after: 737100 No. 2 Lanzhou Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province Patentee after: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region after: China Address before: 737103 No. 98, Jinchuan Road, Jinchang, Gansu Patentee before: Jinchuan Group Co.,Ltd. Country or region before: China |
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Address after: No. 31 Beijing Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province 737100 Patentee after: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region after: China Address before: No. 2 Lanzhou Road, Beijing Road Street, Jinchuan District, Jinchang City, Gansu Province Patentee before: Jinchuan Group Nickel Cobalt Co.,Ltd. Country or region before: China |
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