Beneficiation method for high-grade copper-nickel sulphide ore

A technology of copper-nickel sulfide and beneficiation method, which is applied to the beneficiation of nickel sulfide ore, copper sulfide and nickel associated ore, and the field of copper sulfide ore, which can solve the problems of complex process flow, low recovery rate of copper-nickel metal, and large one-time investment. , to achieve the effect of advanced technology and reduction of tailings metal loss

Active Publication Date: 2014-04-23
JILIN JIEN NICKEL IND
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Problems solved by technology

With the depletion of mine resources, there are more and more concentrators that mainly rely on the processing of purchased ore. Due to the influence of the unfixed reserve of purchased ore and the unstable nature of the ore, the purchase of raw ore grades that are too high (low) Copper sulfide ore, nickel sulfide ore and copper sulfide and nickel associated ore undergo the above-mentioned ore dressing treatment method, which not only requires a lar

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  • Beneficiation method for high-grade copper-nickel sulphide ore

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Embodiment Construction

[0035] The present invention will be further described below using the accompanying drawings and specific examples.

[0036] With reference to accompanying drawing, a kind of beneficiation method of high-grade copper-nickel sulfide ore comprises the following steps successively:

[0037] That is, the crushing and screening of raw ore, magnetic separation pre-selection of raw ore, grinding and flotation of low-grade ore, and the treatment process of concentration and filtration of flotation concentrate, as follows

[0038]Raw ore crushing and screening process 1. The original dressing plant adopts a three-stage and one closed-circuit crushing process. On this basis, a new ore bin is built near the ore raw ore bin, and the ore from the new ore bin is introduced into the third stage by using a plate feeder and a belt conveyor. A closed-circuit process inspection screening place. Due to the soft nature of copper and nickel minerals, especially the high-grade copper-nickel ore has...

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Abstract

The invention relates to a beneficiation method for high-grade copper-nickel sulphide ore, and belongs to the field of beneficiation methods for copper-nickel sulphide ore. The beneficiation method includes the steps of 1), crushing and screening of raw ore, 2), magnetic separation and preconcentration of the raw ore, 3), grinding separation of low-grade ore, 4), reselection of tailings and 5), flotation of concentrates, concentration and filtration. During floatation, a beneficiation reagent in a specified ratio is added step by step, and high-grade copper-nickel ore of 2.5-5% is processed based on the technological process of low-grade copper-nickel ore of 0.5-1.5%. On the condition of 3.88% nickel grade and 0.56% copper grade of the raw ore, copper-nickel bulk concentrates with comprehensive nickel grade of more than 6% and comprehensive nickel metal recovery rate of 95% are acquired. The method is reliable and advanced in technology, low in investment, high in benefit and high in comprehensive recovery rate of valuable metal, and is an ideal beneficiation method for processing high-grade copper sulphide ore, nickel sulphide ore and copper-nickel sulphide associated ore by the original technological process.

Description

technical field [0001] The invention belongs to the field of beneficiation method of copper-nickel sulfide ore, and in particular relates to a method suitable for beneficiation of higher-grade copper sulfide ore, nickel sulfide ore, copper sulfide and nickel associated ore by adopting a low-grade process flow method. Background technique [0002] At present, the processing capacity of the non-ferrous metal concentrator in the existing technology depends on the scale of the concentrator determined in the beneficiation design stage. Since the grinding process determined at the design stage matches the properties of the ore in this area, and has a relatively fixed processing capacity and flotation time, it is not suitable for ores that exceed a certain range of raw ore grades in this area, especially high-grade copper-nickel ores. It is suitable for sorting in the process flow of the original dressing plant. Hard sorting will not only cause index deterioration due to insuffic...

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Application Information

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IPC IPC(8): B03B7/00
Inventor 冯立伟刘绪光张守强
Owner JILIN JIEN NICKEL IND
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