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Flotation method for separating copper form mica

A technology of mica and inhibitor, which is applied in the field of flotation to separate copper and mica, can solve the problems such as the impact of floatability on the grade of copper concentrate, and achieve the effects of no pollution to the environment, simple process and improved quality

Active Publication Date: 2013-04-10
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 purpose of the present invention is to provide a flotation method for separating copper and mica, so as to solve the technical problem that the floatability of mica seriously affects the grade of copper concentrate in the existing process of copper ore flotation.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

no. 3 example

[0024] The specific steps are:

[0025] Step 1, taking the required amount of DM and GJ in a ratio of 12:1 and mixing them to form an aqueous solution with a weight concentration of 0.3% to obtain an inhibitor;

[0026] Step 2, grind the ore to -0.074㎜, accounting for 75%;

[0027] Step 3: Add 80g of collector and 50g of inhibitor per ton of ore, fully stir, and float the ore. Preferably, the stirring time is 3 minutes.

no. 4 example

[0029] The specific steps are:

[0030] Step 1, taking the required amount of DM and GJ in a ratio of 11:1 and mixing them to form an aqueous solution with a weight concentration of 1.5% to obtain an inhibitor;

[0031] Step 2, grind the ore to -0.074㎜, accounting for 75%;

[0032] Step 3, adding 80g of collector and 150g of inhibitor per ton of ore, fully stirring, and flotation ore. Preferably, the stirring time is 1 minute.

no. 5 example

[0034] The specific steps are:

[0035] Step 1, taking the required amount of DM and GJ in a ratio of 9:1 and mixing them to form an aqueous solution with a weight concentration of 0.5% to obtain an inhibitor;

[0036] Step 2, grind the ore to -0.074㎜, accounting for 75%;

[0037] Step 3: Add 100g of collector and 120g of inhibitor per ton of ore, fully stir, and float the ore. Preferably, the stirring time is 2 minutes.

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PUM

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Abstract

The invention provides a flotation method for separating copper form mica. In the method, Z-200 is taken as collecting agent, a mixed liquid of DM and GJ in a ratio of 8-12:1 is taken as an inhibiting agent, and ore flotation is performed in a neutral or alkalescent state of ore pulp. By the method, the copper content of copper concentrate is improved by more than 15 percent, the mica content of the copper concentrate is reduced by more than 70 percent, and the entrainment rate of machinery during the comprehensive recovery is reduced by more than 20 percent, while the consumption of chemicals is basically unchanged.

Description

technical field [0001] The invention relates to the field of mineral flotation, in particular to a flotation method for separating copper and mica. It can be widely used in the beneficiation process of copper ore containing mica or copper-associated ore. Background technique [0002] At present, in the beneficiation process of copper ore containing mica or copper-associated ore, it is usually used to add some reagents to the ore mixture for flotation. In the beneficiation process, due to the good floatability of mica, it is often used as a gangue mineral to interfere with the flotation process of copper and affect the quality of copper concentrate. The existing copper selection process uses combined inhibitors to suppress mica, and it is required not to affect the flotation of copper. The flotation effect directly affects the grade of copper concentrate and the efficiency of copper selection. Therefore, the preparation and addition of inhibitors are very important for cop...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/00
Inventor 陈代雄王法平祁忠旭杨建文董艳红曾惠明
Owner HUNAN RES INST FOR NONFERROUS METALS
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