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Method for separating copper oxide ores containing magnetic impurities

A mineral processing method, copper oxide ore technology, applied in the direction of chemical instruments and methods, flotation, wet separation, etc., can solve the problems of complex mineral processing process, high mineral processing cost, low mineral processing index, etc., to achieve simple mineral processing process, saving resources, to overcome the effect of large amount of ore

Active Publication Date: 2015-07-08
HUNAN RES INST FOR NONFERROUS METALS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention solves the technical problems such as low beneficiation index of refractory copper oxide minerals containing magnetic impurities, complicated beneficiation process and high beneficiation cost

Method used

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  • Method for separating copper oxide ores containing magnetic impurities
  • Method for separating copper oxide ores containing magnetic impurities
  • Method for separating copper oxide ores containing magnetic impurities

Examples

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Effect test

Embodiment 1

[0022] The raw ore is selected from a certain foreign copper oxide ore, containing 2.98% copper, 5.17% iron, and a copper oxidation rate of more than 95%. Azurite, etc., some copper minerals are adsorbed or mechanically mixed with iron and manganese impurities.

[0023] The ore beneficiation includes the following steps:

[0024] (1) Grinding: Raw ore is ground to a fineness of -0.074mm, accounting for 75%;

[0025] (2) Rough separation of easy-to-select copper oxide ore: according to the ore feed per ton, the amount of sodium sulfide is 1600g, stirred for 2 minutes, 120g of pentaxanthate, 20g of polyether alcohol, stirred for 1 minute, and the flotation time is 3 minutes; Copper oxide roughing concentrate and easy-to-select copper oxide roughing tailings;

[0026] (3) Easy-to-select copper oxide roughing tailings are obtained through two sweeps to obtain easy-to-select copper oxide sweep tailings, calculated per ton of ore feed, wherein in the sweeping process, the amount o...

Embodiment 2

[0035] The raw ore is selected from a copper oxide ore with high iron content and large slime content in a certain place in Tibet. The ore contains 3.08% copper, 17.85% iron, and a copper oxidation rate of about 97%. The copper minerals are mainly malachite and blue copper. Iron ore, copper-iron ore, chrysocolla, copper-iron-silicon-oxygen complex, etc., a large number of copper minerals are mixed with iron by adsorption or mechanically.

[0036] The ore beneficiation includes the following steps:

[0037] (1) Grinding: Raw ore is ground to a fineness of -0.074mm, accounting for 80%;

[0038] (2) Rough separation of easy-to-select copper oxide ore: according to the ore feed per ton, the amount of sodium sulfide is 2400g, stirred for 2 minutes, pentaxanthate 160g, polyether alcohol 30g, stirred for 1 minute, and the flotation time is 4 minutes; Copper oxide roughing concentrate and easy-to-select copper oxide roughing tailings;

[0039] (3) The easy-to-select copper oxide rou...

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Abstract

The invention relates to a method for separating copper oxide ores containing magnetic impurities. The copper oxide ores firstly goes through easily separable copper oxide flotation to obtain easily separable copper oxide concentrate and easily separable copper oxide tailings, and then difficultly separable copper oxide floatation is performed on the easily separable copper oxide tailings to obtain difficultly separable copper oxide flotation concentrate; a collecting agent used for the difficultly separable copper oxide floatation is a combined collecting agent; the combined collecting agent is composed of an yellow catching agent and 4-sodium diphenylaminesulfonate; low intensity magnetic separation and high gradient magnetic separation are orderly performed on the difficultly separable copper oxide flotation concentrate to obtain copper magnetic separation concentrate; the magnetic field intensity of the low intensity magnetic separation is 0.2-0.5T; the background magnetic field intensity of the high gradient magnetic separation is 0.7-1.2T. The separation process of the copper oxide ores is simple in flow, low in production cost and prone to industrial implementation.

Description

technical field [0001] The invention relates to a beneficiation method of copper oxide ore containing magnetic impurities. Background technique [0002] In my country's copper resources, copper oxide ore accounts for about a quarter. There are oxidation zones on the upper part of most copper deposits, and some have even formed independent large and medium-sized copper oxide deposits. For this reason, the development and utilization of copper oxide ore is of great significance to the development of my country's copper industry. [0003] Oxide copper ore often has high mud content and fine particle size. During the flotation process, it is easy to cause disadvantages such as large amount of medium ore, unstable production, large consumption of flotation reagents, and high production cost. Its treatment has always been the field of mineral processing at home and abroad. one of the problems. A large number of experimental research results show that copper oxide minerals with ...

Claims

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Application Information

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IPC IPC(8): B03B7/00B03D1/00
CPCB03B7/00B03B9/00B03D1/00
Inventor 陈代雄薛伟李晓东杨建文胡波董艳红祁忠旭曾惠明
Owner HUNAN RES INST FOR NONFERROUS METALS
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