Leaching method for sulfide minerals
AssigneesGuizhou Cngr Resource Recycling Industry Development Co., Ltd, Guangxi Cngr New Energy Science & Technology Co., Ltd
InventorsXingting Ren, Peihong Hu, Demao Feng, Mengnan Zhang, Zhenbo Liu, Wei Yu, Jianbo Peng
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Abstract
The present disclosure provides a method of leaching sulfide mineral, including: first grinding the sulfide mineral into a powder. A small particle size can increase a specific surface area of the powder, and thus increase a reaction rate of sulfide and a leaching rate of metal. The increase of reaction rate and leaching rate of metal can reduce a pressure in pressurized leaching, so as to reduce problems of large investment and high safety risk caused by configuring a large amount of high-pressure oxygen-rich equipment.
Claims20
A method of leaching sulfide mineral, comprising:
- grinding the sulfide mineral into a powder, wherein a particle size D90 of the powder is smaller than or equal to 40 μm, wherein
- the sulfide mineral is at least one of a nickel sulfide mineral, a copper-cobalt sulfide mineral, a cobalt-copper alloy, a high nickel matte, or a low nickel matte.
Dependencies are inferred from the claim text.