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| Process mineralogy analysis of products in the beneficiation process of copper nickel sulfide ore |
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Received:March 03, 2020
Revised:March 08, 2020
Accepted:March 08, 2020
Published Online:July 16, 2020
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| DOI： |
| KeyWord:copper nickel sulfide ore; monomer dissociation; process mineralogy; flotation; magnesium oxide |
| Author | Institution |
| chenwei |
JINCHUAN GROUP.,LTD.Mineral processingPlant |
| zhangfuqiang |
JINCHUAN GROUP.,LTD.Mineral processingPlant |
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| Abstract: |
| On the basis of a large number of observation and analysis with optical microscope, combined with scanning electron microscope, X-ray energy spectrum analysis, X-ray diffraction, ICP and chemical phase analysis and other test and analysis instruments, the products of a copper nickel sulfide ore separation process are systematically analyzed, including the mineral composition and monomer dissociation of main minerals in the primary and secondary ore, primary and secondary concentrate and tailings. The results show that about 10% and 5% of the nickel and copper elements in the ore are in oxidation state; the monomer dissociation degree of the main nickel copper minerals in the two-stage grinding products is not high; the relatively coarse particles and sulfide can not be effectively dissociated, and the fine grain gangue inclusions are floatation in the concentrate. It is suggested to improve and optimize the particle size composition of grinding, improve the monomer dissociation of sulfide in the relatively coarse particle, reduce the content of micro particle sulfide; strengthen the collection of coarse and micro particle sulfide, control the floatation of coarse-grained monomer magnesium oxide mineral, and the collection of micro particle magnesium oxide mineral inclusion, which can effectively improve the recovery rate and reduce the content of concentrate magnesium oxide. |
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