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Beneficiation method of high-oxygenation-efficiency complicated copper ore containing co-associated metal

A technology of associated metals and beneficiation methods, applied in flotation, solid separation, etc., can solve the problems of low copper recovery rate, complex beneficiation process, high production cost, etc., and achieve the goal of improving recovery rate, simplifying metallurgical process and reducing production cost Effect

Active Publication Date: 2014-12-03
HUNAN RES INST FOR NONFERROUS METALS +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to provide a method for beneficiation of complex copper ore with high oxidation rate containing co-associated metals, so as to solve the technical problems of complex beneficiation process, low copper recovery rate and high production cost in the prior art

Method used

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  • Beneficiation method of high-oxygenation-efficiency complicated copper ore containing co-associated metal
  • Beneficiation method of high-oxygenation-efficiency complicated copper ore containing co-associated metal
  • Beneficiation method of high-oxygenation-efficiency complicated copper ore containing co-associated metal

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Experimental program
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Effect test

Embodiment 1

[0039] The raw ore contains 3.42% copper, the copper oxidation rate is 43.38%, and the cobalt content is 0.16%.

[0040] The beneficiation steps are as follows:

[0041] (1) Grind 1 ton of raw ore through a ball mill until the fineness of the ore pulp is less than 0.074mm, which accounts for 73% of the total particle weight. When the mass percentage concentration of the pulp is 36%, it enters the flotation tank for flotation .

[0042] (2) Add 120 g of ethyl amyl xanthate formate and 60 g of terpineol oil to the pulp, and perform rough separation of copper sulfide for 3 minutes to obtain rough concentrate of copper sulfide and tailings of rough separation of copper sulfide.

[0043] Add 500g of sodium carbonate, 60g of pentyl xanthate ethyl formate, 20g of terpineol oil to copper sulfide roughing tailings and carry out copper sulfide scavenging for the first time for 3 minutes to obtain copper sulfide scavenging concentrate one and sulfide Copper scavenging tailings 1, add 6...

Embodiment 2

[0055] The raw ore contains 2.22% copper, the copper oxidation rate is 57.19%, and the silver content is 68.93 g / t raw ore.

[0056] The beneficiation steps are as follows:

[0057] (1) Grind 1 ton of raw ore through a ball mill until the fineness of the grinding is such that particles with a particle size of less than 0.074mm in the pulp account for 68% of the total particle weight. When the mass percentage concentration of the pulp is 24%, enter the flotation tank for flotation .

[0058] (2) Add 100 g of ethyl amylxanthate formate and 40 g of terpineol oil to the pulp, and the flotation time is 3 minutes to obtain copper sulfide coarse concentrate and copper sulfide roughing tailings.

[0059] Add 300g of sodium carbonate, 40g of ethyl amyl xanthate formate, and 30g of terpineol oil to copper sulfide roughing tailings and carry out copper sulfide scavenging for the first time for 3 minutes to obtain copper sulfide scavenging concentrate one and sulfide Copper scavenging t...

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Abstract

The invention discloses a beneficiation method of a high-oxygenation-efficiency complicated copper ore containing co-associated metal. The method comprises the following steps of: grinding a raw ore to be selected and blending into ore slurry I; carrying out copper sulfide select flotation on the ore slurry I to obtain copper sulfide ore concentrate I, copper sulfide middling and copper sulfide tailings; carrying out copper oxide select flotation on the copper sulfide tailings to obtain copper oxide ore concentrate I, copper oxide middling and copper oxide tailings; and carrying out fine selection on the copper sulfide middling and the copper oxide middling to respectively obtain sulfide ore concentrate II and copper oxide ore concentrate II. The copper sulfide middling and the copper oxide middling are respectively and independently processed to obtain high-grade copper sulfide ore concentrate and high-grade copper oxide ore concentrate; and meanwhile, low-grade copper sulfide ore concentrate and low-grade copper oxide ore concentrate are obtained. The high-grade copper sulfide ore concentrate, the low-grade copper sulfide ore concentrate and the copper oxide ore concentrates are separated, so that a subsequent metallurgy process flow is simplified, the recycling rate of copper is improved, a co-associated metal resource is enhanced and the recycling of noble metal is particularly enhanced; and the production cost is reduced, and the economic benefit is improved.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a beneficiation method for complex copper ore with high oxidation rate containing co-associated metals. Background technique [0002] my country has a lot of copper ore reserves, but the average grade of copper ore is only 0.87%, and the grade of super-large copper mines larger than 2 million tons is basically lower than 1%. Because most of the copper mineral resources are complex co-associated deposits, most of which are small and medium-sized mines, large deposits only account for 2.7%, medium deposits account for 8.9%, small deposits account for 88.4%, and a considerable part of them belong to the type of sulfide-oxidation mixed copper deposits. These copper ores have complex compositions and high oxidation rates. The traditional copper ore flotation technology only considers the flotation of a single copper sulfide ore (including primary chalcopyrite, secondary ch...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00
Inventor 陈代雄张汉彪薛伟李国民杨建文李宋江曾惠明王华祁忠旭林荣跃董艳红李晓东胡波刘锡桂
Owner HUNAN RES INST FOR NONFERROUS METALS