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Enrichment method of ores containing cobalt and nickel

A cobalt ore and enrichment technology is applied to enrich cobalt and nickel in cobalt and nickel ore materials to a higher grade field, which can solve the problems of high energy consumption and low selection rate, and achieve low energy consumption, The effect of reducing energy consumption and improving the enrichment selection rate

Inactive Publication Date: 2018-02-06
江学艺
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can solve the problems of high energy consumption and low extraction rate of cobalt and nickel in existing cobalt and nickel ore enrichment methods

Method used

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  • Enrichment method of ores containing cobalt and nickel
  • Enrichment method of ores containing cobalt and nickel
  • Enrichment method of ores containing cobalt and nickel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1 - is the method that the raw ore containing cobalt 4.01% carries out enrichment treatment:

[0025] The steps in this method are:

[0026] 1. First crush the cobalt-containing ore to less than 30mm;

[0027] 2. Then the crushed cobalt-containing ore is reduced;

[0028] 3. The reduced cobalt-containing ore is crushed to a particle size of less than 80 mesh;

[0029] 4. After magnetic separation by a magnetic separator with a magnetic field strength of 5000 gauss, cobalt concentrate powder with a cobalt content of 31.52% was obtained, and the cobalt recovery rate was 94%.

[0030] The above-mentioned reduction treatment is carried out in a reduction furnace with an upper mineral material inlet and a lower mineral material outlet. There is a feed hopper 1 at the upper end of the reduction furnace, and there is smoke between the feed hopper 1 and the furnace shell 2 of the reduction furnace. The gas outlet, the upper inlet of the feed hopper 1 is the or...

Embodiment 2

[0040] Embodiment 2---is the method that the raw ore containing nickel 1.2% carries out enrichment treatment:

[0041] The steps in this method are:

[0042] 1. First crush the nickel-containing ore to less than 30mm;

[0043] 2. Then the crushed cobalt-containing ore is reduced;

[0044] 3. The reduced nickel-containing ore is crushed to a particle size of less than 80 mesh;

[0045] 4. After magnetic separation by a magnetic separator with a magnetic field strength of 5000 gauss, the nickel concentrate powder with a nickel content of 3.5% is obtained, and the recovery rate of nickel is 90%.

[0046] In the reduction treatment of the nickel-containing ore in this embodiment, the other parts of the reduction treatment are exactly the same as in Example 1, except that the ore material is the raw ore containing 1.2% nickel.

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Abstract

The invention discloses an enrichment method of ores containing cobalt and nickel. The enrichment method comprises the following step: firstly, the ores containing cobalt and nickel are reduced, and then, are magnetically separated to obtain enriched cobalt and nickel cores. The method can solve the problems of high energy consumption and low cobalt and nickel separation rate in a traditional cobalt and nickel ore enrichment method.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a method for enriching cobalt and nickel in ore materials containing cobalt and nickel to a higher grade. Background technique [0002] The existing enrichment method of cobalt-containing ore, that is, the first prior art, such as "a method for beneficiation of cobalt-containing ore" (patent application number: 201510672435.5, application publication date December 30, 2015), this method It is to crush the cobalt-containing ore first, and then directly perform multiple times of magnetic and flotation to obtain enriched cobalt ore. This technique has the following problems: [0003] 1. High energy consumption. Due to the need to crush the raw ore, on the one hand, due to the high hardness of the raw ore, it is difficult to crush, and the energy consumption is high; 50-90%, greatly increasing the crushing energy consumption. [0004] 2. Low enrichment and selection ...

Claims

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Application Information

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IPC IPC(8): C22B23/02
CPCC22B23/021
Inventor 江学艺
Owner 江学艺
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