Integrated Leaching of Cobalt Hydroxide Intermediate and Nickel-cobalt Sulfide Intermediate

FU Haikuo; SHEN Hengguan; ZHAO Xitai; PENG Hengfu; DUAN Hui; LIAO Yuli; ZHANG Lingli

doi:10.3969/j.issn.1000-6532.2025.02.023

2025 Vol. 45, No. 2

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Article navigation > Multipurpose Utilization of Mineral Resources > 2025 > 46(2): 165-170

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FU Haikuo, SHEN Hengguan, ZHAO Xitai, PENG Hengfu, DUAN Hui, LIAO Yuli, ZHANG Lingli. Integrated Leaching of Cobalt Hydroxide Intermediate and Nickel-cobalt Sulfide Intermediate[J]. Multipurpose Utilization of Mineral Resources, 2025, 46(2): 165-170. doi: 10.3969/j.issn.1000-6532.2025.02.023

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FU Haikuo, SHEN Hengguan, ZHAO Xitai, PENG Hengfu, DUAN Hui, LIAO Yuli, ZHANG Lingli. Integrated Leaching of Cobalt Hydroxide Intermediate and Nickel-cobalt Sulfide Intermediate[J]. Multipurpose Utilization of Mineral Resources, 2025, 46(2): 165-170. doi: 10.3969/j.issn.1000-6532.2025.02.023

Integrated Leaching of Cobalt Hydroxide Intermediate and Nickel-cobalt Sulfide Intermediate

Hunan CNGR New Energy Technology Co., Ltd., Changsha 410601, Hunan, China

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Corresponding author: SHEN Hengguan, 349072486@qq.com

Received Date: 15 April 2022

Publish Date: 25 April 2025

Abstract

Abstract

The integrated leaching of cobalt hydroxide intermediate and nickel-cobalt sulfide intermediate was studied. The experimental results show that the recovery of manganese in cobalt hydroxide intermediate and the utilization of nickel and cobalt sulfide intermediate were 99.92% and 90.65%, respectively, at the optimum conditions including quality ratio of cobalt hydroxide intermediate and nickel-cobalt sulfide intermediate of 1/5, initial acidity of reaction of 4 mol/L, reaction temperature of 70 ℃, liquid-solid reaction ratio of 3:1 and reaction time of 2.5 h. The residue could be used for leaching cobalt hydroxide intermediate as reductant. The objective of integrated leaching of cobalt hydroxide intermediate and nickel-cobalt sulfide intermediate was attained without the addition of any other oxygenant or reductant. Most importantly, the integrated process leaching is simple and feasible to operate and suitable for industrial production.
- Metallurgical Engineering /
- Cobalt hydroxide /
- Nickel-cobalt sulfide /
- Intermediate /
- Integrated leaching

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References

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