Dressing-metallurgy combination recycling method for solid inclusion copper oxide ore

A combined technology of copper oxide ore and beneficiation and metallurgy, applied in the field of beneficiation and metallurgy, can solve the problems of unsatisfactory effect, single dispersion and inhibition of ore slime, single heating, etc., and achieves obvious leaching effect, reduction of ore amount, and temperature rise. fast effect

Active Publication Date: 2017-07-04
KUNMING UNIV OF SCI & TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for the coated copper oxide ore involved in the present invention, it is extremely difficult to separate, and a single heating, or a single dispersion and inhibition of slime, cannot obtain satisfactory results

Method used

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  • Dressing-metallurgy combination recycling method for solid inclusion copper oxide ore
  • Dressing-metallurgy combination recycling method for solid inclusion copper oxide ore
  • Dressing-metallurgy combination recycling method for solid inclusion copper oxide ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Raw materials: copper grade 1.5%, oxidation rate greater than 95%, copper distribution rate in free copper oxide ore is less than 40%, copper distribution rate of limonite, hematite, biotite wrapped 60% solid inclusion oxidation copper ore.

[0026] (1) Ore crushing and grinding, the grinding fineness is -0.074mm, the mass percentage accounts for 70%, the mass percentage concentration of the pulp after grinding is 35%, and the strong magnetic field magnetic separation with a magnetic induction intensity of 1.6T is adopted The iron and biotite minerals wrapped in copper are recovered by mechanical magnetic separation to obtain magnetic separation concentrate, and the magnetic separation concentrate is filtered, and the filtrate is returned to the magnetic separation operation, and the magnetic separation tailings containing free copper oxide are obtained at the same time;

[0027] (2) The magnetic separation concentrate is dried and heated by a continuous chemical indust...

Embodiment 2

[0032] Raw materials: copper grade 1.0%, oxidation rate greater than 95%, copper distribution rate in free copper oxide ore is less than 40%, copper distribution rate of limonite, hematite, biotite wrapped 53% solid inclusion oxidation copper ore.

[0033] (1) First crush and grind the ore, the grinding fineness is -0.074mm, the mass percentage accounts for 75%, the mass percentage concentration of the pulp after grinding is 40%, and the strong magnetic field magnetic separation with a magnetic induction intensity of 1.3T is adopted The iron and biotite minerals wrapped in copper are recovered by mechanical magnetic separation to obtain magnetic separation concentrate, and the magnetic separation concentrate is filtered, and the filtrate is returned to the magnetic separation operation, and the magnetic separation tailings containing free copper oxide are obtained at the same time;

[0034] (2) The magnetic separation concentrate is dried and heated by a continuous chemical in...

Embodiment 3

[0039] Raw materials: copper grade 0.8%, oxidation rate greater than 95%, copper distribution rate in free copper oxide ore is less than 40%, copper distribution rate of limonite, hematite, biotite wrapped 50% solid inclusion oxidation copper ore.

[0040] (1) Ore crushing and grinding, the grinding fineness is -0.074mm, the mass percentage accounts for 80%, the mass percentage concentration of the pulp after grinding is 38%, and the magnetic field magnetic separator with a magnetic induction intensity of 1.0T is used. Collect iron and biotite minerals wrapped in copper to obtain magnetic separation concentrate, and filter the magnetic separation concentrate, the filtrate is returned to the magnetic separation operation, and at the same time obtain the magnetic separation tailings containing free copper oxide, which is produced by drying the magnetic separation concentrate The steam is used to supplement the heating magnetic separation tailings slurry;

[0041] (2) The magnet...

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Abstract

The invention provides a dressing-metallurgy combination recycling method for solid inclusion copper oxide ore. According to the purpose, strong magnetic separating is adopted for copper oxide ore wrapped by weak magnetic minerals to obtain a magnetic product wrapped by copper oxide, and the magnetic product is filtered, wherein the copper oxide ore is hard to recycle through floatation, and the direct acid leaching rate is low; and microwave drying and heating, heating selectivity of microwaves on different minerals in a solid inclusion is utilized, the temperature rise of the minerals is different, volume expansion is different, so that cracks are generated, ,a diffusion channel is provided for subsequent sulfuric acid leaching, the leaching rate speed and the leaching rate are increased, and copper ore resources hard to treat are efficiently recycled. By means of the dressing-metallurgy combination recycling method for solid inclusion copper oxide ore, dressing and metallurgy methods are in mutual promotion and are in collaboration, and the technical problem about machining and utilizing of solid inclusion copper oxide ore resources is economically and effectively solved.

Description

technical field [0001] The invention relates to a method for combined recovery and utilization of solid inclusion copper oxide ore dressing and metallurgy, belonging to the technical field of mineral processing and metallurgy. Background technique [0002] In the case that copper sulfide ore resources cannot meet the needs of economic and social development, it is inevitable to mine copper oxide ore resources, and copper oxide ore is generally more difficult to recover than copper sulfide ore. One of the hot issues. Copper oxide minerals mainly include malachite, chrysocolla, azurite, cuprite, black cuprite, false malachite, combined copper, etc., and are mainly combined with gangue minerals such as silicate, carbonate, and iron oxide. companion. Copper oxide minerals such as malachite, chrysocolla, azurite, cuprite, and black copper ore with coarser crystal grain size and independent existence can be recovered by sulfide xanthate flotation. Copper oxide ore with dense sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/08C22B1/00C22B15/00
CPCC22B1/00C22B3/08C22B15/0071Y02P10/20
Inventor 文书明朱景和刘媛媛黄草明邓久帅刘建沈海英王伊杰陈瑜张谦
Owner KUNMING UNIV OF SCI & TECH
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