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Pressure Leaching Behavior of Molybdenum-Nickel Sulfide from Black Shale

Zhigan Deng, Xingbin Li

2017enmolybdenumnickelsulfidespressure leachingblack shalemineral processing

Abstract

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Molybdenum and nickel in black shale ore exists as amorphous sulfides which have high reactivity and can easily oxidize to sulfuric acid and sulfate at low temperatures in the presence of excess oxygen. This study aims to leverage these characteristics to effectively leach molybdenum and nickel from black shale. The research investigates the oxidation, conversion, and dissolution behavior of amorphous colloidal molybdenum and nickel sulfide during the pressure leaching process, focusing on variables such as stirring speed, temperature, sulfuric acid concentration, oxygen supply, and mineral granularity. Results indicate that the dissolution rate of molybdenum and nickel increases with rising temperature and stirring speed but decreases with higher concentrations of sulfuric acid. Furthermore, the dissolution process of molybdenum and nickel can be achieved using only oxygen without the need for additional reagents.

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Cite This Work

@article{80e72dcd-9050-4547-a8a1-90422cbc9206,
  title={Pressure Leaching Behavior of Molybdenum-Nickel Sulfide from Black Shale},
  author={Zhigan Deng and Xingbin Li},
  year={2017},
  language={en}
}
TY  - JOUR
TI  - Pressure Leaching Behavior of Molybdenum-Nickel Sulfide from Black Shale
AU  - Zhigan Deng
AU  - Xingbin Li
PY  - 2017
LA  - en
ER  -

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