A kind of method for selecting copper and nickel from copper-nickel ore

A technology for copper-nickel and ore beneficiation, applied in the field of copper-nickel beneficiation of copper-nickel ore, can solve problems such as low recovery rate, and achieve the effects of reducing MgO content, improving copper-nickel recovery rate, and high separation efficiency

Active Publication Date: 2022-08-09
BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, in copper-nickel beneficiation production, a single flotation process is usually adopted, but for copper-nickel ores with many types of copper and nickel minerals, fine particle size, and complex intercalation relationship, the recovery rate of single flotation is low

Method used

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  • A kind of method for selecting copper and nickel from copper-nickel ore
  • A kind of method for selecting copper and nickel from copper-nickel ore
  • A kind of method for selecting copper and nickel from copper-nickel ore

Examples

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Embodiment 1

[0048] This embodiment provides a method for selecting copper and nickel from a copper-nickel ore, wherein the copper-nickel ore has a copper grade of 0.95% and a nickel grade of 0.92%.

[0049] The main valuable elements of the copper-nickel ore are copper and nickel, followed by recyclable precious metals gold, silver, platinum and palladium. Nickel minerals are mainly pyrite and pyrite, copper minerals are mainly chalcopyrite, chalcopyrite and a small amount of chalcopyrite, and other metal minerals are mainly pyrrhotite, pyrite, magnetite Ore, chromite, rare and precious metal ore are tellurium silver ore, natural gold, silver gold ore, gold and silver ore, tellurium bismuth palladium ore, tellurium bismuth (platinum) palladium ore, arsenic platinum ore, etc. The gangue minerals are mainly serpentine stone. Copper and nickel minerals are closely related to magnetite, and magnetite usually grows at the sulfide grain boundary.

[0050] The schematic flow chart of the metho...

Embodiment 2

[0077] This embodiment provides a method for selecting copper and nickel from a copper-nickel ore. The difference from Example 1 lies in the ore feeding. The copper-nickel ore in this embodiment has a copper grade of 0.87% and a nickel grade of 1.30%.

[0078] The main valuable elements of the copper-nickel ore are copper and nickel, followed by recyclable precious metals gold, silver, platinum and palladium. Nickel minerals are mainly nickel pyrite, copper-nickel iron ore, purple sulfur nickel ore, copper minerals are mainly chalcopyrite, chalcopyrite, chalcopyrite, and other metal minerals are mainly pyrrhotite, tetragonal pyrite Ore, pyrite, magnetite, rare and precious metal ore are natural gold, silver-gold ore, gold-silver ore, bismuth tellurium palladium ore, bismuth tellurium (platinum) palladium ore, etc. The gangue mineral is mainly serpentine. The structure of the ore is complex, and a large amount of magnetite and magnesia-bearing gangue minerals are filled in the ...

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Abstract

The invention provides a method for beneficiation of copper and nickel from copper-nickel ore. The concentrate obtained by sweeping and the concentrate obtained by magnetic separation are selected. The invention provides a method for separating copper and nickel from copper-nickel ore. The flotation method is used to first select easily floating copper-nickel-bearing minerals, then magnetic separation to select "magnetic" copper-nickel conjoined bodies, and finally regrinding through medium ore. The dissociated conjoined cells are returned to the flotation operation for re-election, which further increases the recovery rate of copper and nickel. At the same time, part of the magnesia-containing gangue can be discarded in advance, reducing the circulation amount of the magnesia-containing gangue in the flotation system, improving the flotation environment, and thereby increasing the copper and nickel content. Nickel recovery rate, reduce MgO content in copper-nickel concentrate. The method has the advantages of simple process, easy control, high separation efficiency, excellent method index, and high quality of the obtained copper-nickel mixed concentrate.

Description

technical field [0001] The invention relates to the technical field of mineral processing, and more particularly, to a method for selecting copper and nickel from a copper-nickel ore. Background technique [0002] Nickel is an important non-ferrous metal raw material required for high-tech development and economic construction, and is called "industrial vitamin". With the economic construction and the development of the iron and steel industry, the demand for nickel continues to increase, while the nickel resources are increasingly poor, refined and hybrid. [0003] At present, in the production of copper-nickel beneficiation, a single flotation process is usually used, but for copper-nickel ores with many types of copper and nickel minerals, fine-grained, and complex intercalation relationships, the single-flotation recovery rate is low. SUMMARY OF THE INVENTION [0004] Aiming at the problems existing in the prior art, the present invention provides a method for selecti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B9/00
CPCB03B9/00Y02P10/20
Inventor 朱阳戈肖婉琴宋振国胡晓星郑桂兵陈康康刘崇峻任爱军周兵仔李松清崔强孙昊
Owner BEIJING MINING & METALLURGICAL TECH GRP CO LTD
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