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Combination Collector for Improving Production Index of Carbon-bearing Gold Ore and Its Application in Flotation of Carbon-bearing Gold Ore

A technology combining collectors and gold concentrates, applied in flotation, solid separation, etc., can solve the problems of large consumption of reagents, instability of reagents, low solubility and dispersion, and achieve low production costs, wide application range, Effect of increasing solubility and dispersibility

Active Publication Date: 2020-08-25
NORTHWEST RES INST OF MINING & METALLURGY INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a combined collector for improving the production index of carbon-containing gold mines and its application, which solves the problems of instability of conventional combined agents, low solubility and dispersion, and large consumption of agents.

Method used

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  • Combination Collector for Improving Production Index of Carbon-bearing Gold Ore and Its Application in Flotation of Carbon-bearing Gold Ore

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The combined collector used in flotation consists of components and parts by weight: J-622, 4 parts; butyl ammonium black drug, 2.5 parts; kerosene, 0.7 parts; OP-10, 0.8 parts.

[0016] The process steps of flotation: a carbon-bearing gold ore in Gansu, the gold grade is 5.43g / t, carbon-containing, low-sulfide carbonate-type gold ore, the grinding concentration is 55%, and the production backwater (solid content is 7.0 %) for ore grinding, add sodium hydroxide, the dosage is 2000g / t, water purifying agent MFA, the dosage is 2000g / t, the content of grinding fineness less than 0.044mm is 70%. Adjust the slurry concentration to 35%, add activator copper sulfate, the dosage is 200g / t, add combined collector 650g / t, and produce gold concentrate 1 and roughing tailings. Add water purifying agent MFA1000g / t to the roughing tailings, regrind the fineness less than 0.044mm to 95%, adjust the slurry concentration of the roughing tailings after regrinding to 30%, add copper sulfa...

Embodiment 2

[0019] The combined collector used in flotation consists of components and parts by weight: J-622, 3 parts; butyl ammonium black drug, 2 parts; kerosene, 0.5 parts; OP-10, 0.5 parts.

[0020] The process steps of flotation: a carbon-bearing gold ore in Gansu, the gold grade is 5.65g / t, carbon-containing, low-sulfide carbonate-type gold ore, the grinding concentration is 50%, and the thickener is used to overflow (solid content is 6.5%) grinding, adding sodium hydroxide, the dosage is 1500g / t, water purifier MFA, the dosage is 1000g / t, the grinding fineness is less than 0.044mm and the content is 65%. Adjust the pulp concentration to 30%, add activator copper sulfate, the dosage is 100g / t, add combined collector 500g / t, and produce gold concentrate 1 and roughing tailings. Add water purifying agent MFA1000g / t to rougher tailings, regrind fineness less than 0.044mm to 90%, adjust the slurry concentration of rougher tailings after regrinding to 25%, add copper sulfate to 100g / t, ...

Embodiment 3

[0023] The combined collector used in flotation consists of components and parts by weight: J-622, 6 parts; butyl ammonium black drug, 3 parts; kerosene, 1 part; OP-10, 1 part.

[0024] The process steps of flotation: a carbon-bearing gold ore in Xinjiang, the gold grade is 4.47g / t, which belongs to carbon-bearing gold ore, the grinding concentration is 60%, the ore is ground with production return water (solid content is 8%), and hydrogen is added The dosage of sodium oxide is 1800g / t, the dosage of water purifier MFA is 1500g / t, and the content of grinding fineness less than 0.044mm is 65%. Adjust the pulp concentration to 38%, add activator copper sulfate, the dosage is 220g / t, add combined collector 550g / t, and produce gold concentrate 1 and roughing tailings. Add water purifying agent MFA1000g / t to the roughing tailings, regrind the fineness less than 0.044mm to 97%, adjust the slurry concentration of the roughing tailings after regrinding to 35%, add copper sulfate to 80...

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Abstract

The invention belongs to the field of metal mineral separation and provides a combined collecting agent for improving production index of carbonous gold ore and application of the combined collectingagent in floatation of carbonous gold ore thereof. The combined collecting agent comprises, by weight, 3-6 parts of a collecting agent J-622, 2-3 parts of ammonium dibutyl dithiophosphate, 0.5-1 partof kerosene and 0.5-1 part of octaphenyl polyoxyethyiene (OP)-10. The floatation comprises the steps that ore grinding is conducted first; sodium hydroxide as a regulator and MFA as a water purifyingagent are added, and size mixing is conducted; an activator and a collecting agent are added, rapid floatation is conducted, and concentrated gold ore 1 and roughing tailings are acquired; regrindingis conducted on the roughing tailings, and the water purifying agent, MFA, is added when regrinding is conducted; and then floatation is conducted, and concentrated gold ore 2 and tailings are acquired. The concentrated gold ore 1 and the concentrated gold ore 2 serve as qualified concentrated gold ore products. According to the combined collecting agent, the aid-dispersion mechanism is utilized;dissolution dispersity of medicament in an ore pulp is increased; consumption of the collecting agent is reduced by a large margin; collecting capacity of gold is improved greatly; the cost of medicament is lowered; and economic benefits of enterprise production is improved.

Description

technical field [0001] The invention belongs to the technical field of metal beneficiation and relates to a collector for flotation, in particular to a combined collector for improving the production index of carbon-containing gold ore and its flotation application. Background technique [0002] Carbon-bearing gold ore is a refractory ore, mainly because it is often difficult to obtain ideal results through conventional flotation agents. At present, there are many collectors for carbon-bearing gold ore separation, but conventional single collectors have problems such as poor separation effect, high chemical consumption, high beneficiation cost, and poor separation effect. Some combined collectors have stable Poor performance, difficult to disperse in pulp. In addition, in the actual production on site, carbon, as the carrier of gold, often absorbs a certain amount of gold and enters the overflow of the thickener, which not only causes a low recovery rate of gold, but also d...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03D1/018B03D1/00B03D101/02B03D101/06B03D103/02
CPCB03D1/00B03D1/018B03D2201/02B03D2201/06B03D2203/025
Inventor 杨俊龙郭海宁郭艳华彭贵熊姜永智廖雪珍李国栋彭建城
Owner NORTHWEST RES INST OF MINING & METALLURGY INST
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