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Mineral processing method for talc-containing copper-nickel sulphide

A technology of copper-nickel sulfide ore and beneficiation method, applied in flotation, solid separation, etc., can solve the problem that copper-nickel sulfide minerals cannot be separated by talc efficient flotation and separation, and achieve good suppression effect, weaken the suppression effect, and high-efficiency separation

Inactive Publication Date: 2016-01-06
JIANGXI UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a copper-nickel sulfide ore beneficiation method containing talc to solve the technical problem of beneficiation that copper-nickel sulfide minerals cannot be separated from talc by high-efficiency flotation

Method used

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  • Mineral processing method for talc-containing copper-nickel sulphide

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Raw material: a copper-nickel sulfide ore sample in Shaanxi, its main chemical composition is (wt%)

[0023] Ni

[0024] The process is:

[0025] Grind the ore to -0.074mm, accounting for 70%, transfer the ground slurry to the flotation tank, add the regulator sodium carbonate 300g / t ore, stir and adjust the slurry, add the foaming agent MIBC60g / t ore flotation removal Easy to float ore slime, add collector xanthate 120g / t ore, inhibitor hydroxyethyl cellulose 180g / t ore, salted water glass 250g / t ore, foaming agent No. 2 oil 40g to the obtained ore sand 50g / t ore and 20g / t ore butyl xanthate were respectively added to the rougher tailings for two sweeping operations to obtain the final tailings, sweeping The concentrated ore is returned in sequence (that is, the first sweep of ore concentration returns to roughing, the second sweep of ore concentration returns to the first sweep); to the rough concentrate obtained by roughing, add 50g / t ore butyl xanthate, 9...

Embodiment 2

[0031] Raw material: a copper-nickel sulfide ore sample in Xinjiang, its main chemical composition is (wt%)

[0032] Ni

Cu

0.48

0.18

[0033] The process is:

[0034] Grind the ore to -0.074mm accounting for 75%, transfer the ground pulp to the flotation tank, add the adjusting agent sulfuric acid 600g / t ore, stir and adjust the slurry, add the foaming agent No. 2 oil 60g / t ore flotation Remove the easy-floating ore sludge, add the collector Y89 xanthate 100g / t ore, inhibitor hydroxyethyl cellulose 300g / t ore, salted water glass 160g / t ore, foaming agent No. 2 to the obtained ore sand Oil 30g / t ore was roughened once to obtain rougher tailings and rougher concentrate, and 50g / t ore and 30g / t ore Y89 xanthate were added to the rougher tailings for two sweeping operations to obtain the final tailings. The ore and ore cleaning are returned in sequence (that is, the first ore cleaning returns to roughing, and the second ore cleaning returns to the ...

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Abstract

The invention relates to a mineral processing method for talc-containing copper-nickel sulphide. The method comprises the following steps: grinding raw ore; adding a regulator into ore pulp obtained through grinding, and after stirring for regulating the ore pulp, adding a foaming agent so as to remove partial easy-floating slime through floating; after adding a copper-nickel sulphide collecting agent xanthate into ore pulp subjected to desliming for regulating the ore pulp, adding a talc inhibitor hydroxyethyl cellulose and salinized water glass for inhibiting easy-floating talc, so as to realize separation of talc and sulphide copper-nickel minerals. The inhibitor hydroxyethyl cellulose and salinized water glass have a relatively high inhibiting effect on gangue, and the collecting agent added in advance selectively adsorbs on the surface of sulfide minerals and nickel / copper minerals, so that the inhibition of the inhibitor on sulfide minerals is reduced, and the concentrate recovery rate is increased greatly while gangue minerals are effectively inhibited. The used flotation reagents are low-toxic or non-toxic and have the characteristic of less dosage and excellent effects; and the mineral processing method is an efficient mineral processing method for talc-containing copper-nickel sulphide.

Description

technical field [0001] The invention relates to a method for beneficiation of talc-containing copper-nickel sulfide ore, which can obtain copper-nickel sulfide concentrate from the talc-containing copper-nickel sulfide ore. Background technique [0002] The sorting of talc-containing copper-nickel sulfide ores is a recognized technical problem in the field of beneficiation. In the beneficiation of talc-containing copper-nickel sulfide ore, due to the low hardness of gangue mineral talc and its natural floatability, there is a large amount of flotation sludge in the flotation slurry, which is easy to float into the concentrate, which affects the improvement of the concentrate grade. . Therefore, there are two ways to separate the sulfide ore and talc: remove the fine-grained talc by desliming before flotation of the sulfide ore; add a talc inhibitor and then float the sulfide ore. [0003] With the rapid development of the national economy, the easy-to-select copper-nickel ...

Claims

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Application Information

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IPC IPC(8): B03D1/00B03D1/018B03D101/06
Inventor 冯博汪惠惠朱贤文陈志勇曹志明郭蔚
Owner JIANGXI UNIV OF SCI & TECH
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