Simple beneficiation method for chalcocite-containing coarse-grain disseminated copper sulphide ore

Abstract

The invention relates to a simple beneficiation method of chalcocite-containing coarse-grain disseminated copper sulphide ore, which is characterized in that graphite is used for replacing a copper selection collecting agent in flash flotation and graded overflow flotation stages to improve the selective adsorption capacity of coarse-grain minerals, a flotation machine for copper selection is changed into a flotation column, and the method comprises the following steps: ore grinding: adding calcium oxide into raw ore a added into a ball mill for ore grinding; grading: grading the ore grinding product b to obtain ore pulp overflow d and ore pulp settled sand c; flash flotation is carried out, specifically, the settled sand c is subjected to flash flotation, especially coarse-fraction ore is directly discharged from a tailing opening, the proper-fraction ore is subjected to flash flotation, graphite and 2 # oil are added, and product copper concentrate 1e and tailings f are obtained; conventional flotation is conducted, graphite, LY01 and 2 # oil are added into the overflow d, and copper rough concentrate j and tailings i are obtained; the rough concentrate j is subjected to flotation column concentration, and product copper concentrate 2 h and middling k are obtained. The method has the advantages that the problems of over-grinding smashing loss, large flotation recovery difficulty, insufficient flotation time and serious tailing running of useful minerals can be solved; and the selective adsorption capacity of coarse-grained minerals can be improved, the system flow is shortened, enrichment of coarse and fine-grained copper minerals is accelerated, and energy consumption is reduced.

Description

technical field [0001] The invention relates to a simple beneficiation method of chalcocite-containing coarse-grain embedded copper sulfide ore. Background technique [0002] Copper resources play an important role in safeguarding China's national economic security and play an important role in national economic and social development. Copper mainly comes from copper ore, which eventually forms copper metal through mining, sorting and smelting. , Copper ore can be divided into copper sulfide ore, copper oxide ore and mixed copper ore. According to the geochemical properties, copper element belongs to the chalcophilic element group, so copper mostly exists in the form of sulfide in nature, that is, copper sulfide ore. Copper sulfide ores mainly include chalcopyrite, chalcocite, blue chalcocite, bornite and copper blue, etc. This ore is often a variety of mineral symbiosis, not only contains a variety of useful and recyclable copper sulfide minerals, Also contains a lot of g...

AI Technical Summary

Problems solved by technology

[0005] The task of the present invention is to overcome the deficiencies in the prior art, and provide a simple beneficiation method of chalcocite-containing coarse-grained embedded copper sulfide ore, which can effectively solve the problems of grinding and crushing loss, difficulty in flotation recovery, and flotation Insufficient time leads to the old problem of serious tailing of useful minerals, and it can also improve the selective adsorption capacity of coarse-grained minerals, shorten the system process, accelerate the enrichment of coarse-grained copper minerals and reduce energy consumption

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