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A mineral processing method for efficiently recovering high-sulfur gold-copper ore

A beneficiation method and a high-sulfur technology, applied in the direction of solid separation, etc., can solve the problems of unsatisfactory copper beneficiation production indicators, difficulty in recovering gold and silver associated with it, and large circulation of medium ore, and achieve high-efficiency recovery and reduce regrinding. The effect of reducing the amount of material and reducing the energy consumption of regrinding

Active Publication Date: 2021-05-14
厦门紫金矿冶技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic researchers have carried out a lot of research on the separation of copper and sulfur in major mines in my country, but it has been difficult to solve the problem of unsatisfactory copper production indicators in high-sulfur copper ore dressing plants
[0005] If a single mixed flotation or priority flotation process is adopted to separate sulfur-containing high-copper ores by heavy pressure and strong pulling, there are usually high reagent consumption, large medium ore circulation, poor separation effect, low recovery rate of ore dressing, Problems such as poor concentrate quality and difficulty in recovering associated gold and silver

Method used

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  • A mineral processing method for efficiently recovering high-sulfur gold-copper ore
  • A mineral processing method for efficiently recovering high-sulfur gold-copper ore

Examples

Experimental program
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Effect test

Embodiment 1

[0036] A mineral processing method for efficiently recovering high-sulfur gold-copper ore, comprising the steps of:

[0037] S1. Grinding: feed the crushed raw ore and water into the mill at a weight ratio of 2:1 for grinding. After grinding, the fineness is -0.074mm, accounting for 70%, and the pH value of the pulp is adjusted to 5. -7;

[0038] S2, full sulfur mixed flotation roughing: add sulfide ore collecting agent butyl xanthate and stir for 2 minutes, add foaming agent pine alcohol oil and stir for 1 minute, then carry out full sulfur mixed flotation roughing, the concentrate (foam) obtained product) enters the mixed flotation coarse concentrate selection operation, and the tailings obtained enter the full sulfur mixed flotation and sweeping operation; according to the dry weight of the minerals participating in the full sulfur mixed flotation roughing, butyl xanthate and terpineol oil The dosage is to add 80-100g butyl xanthate and 15-30g terpineol oil per ton of mine...

Embodiment 2

[0049] This example will further demonstrate the performance of the method described in Example 1 through experiments.

[0050] A gold-copper deposit is a high-sulfur gold-copper deposit, which belongs to the high-sulfur epithermal gold-copper deposit produced by volcanic eruption. It is sulfur arsenic copper ore, a small amount of chalcocite, chalcopyrite and bornite; the gangue minerals in the ore include quartz, potassium feldspar, chlorite, alunite, mica and so on. Associated gold mainly occurs in sulfide minerals, and the distribution is relatively scattered. Bare gold accounts for about 15%, gold in copper sulfide minerals accounts for about 25%, and gold in pyrite accounts for about 50%.

[0051] Different ore samples from two ore bodies in this mining area were used for test comparison. The raw ore used in Experiment 1 contained Cu 7.03%, Au3.74g / t, S20.22%; the raw ore used in Experiment 2 contained Cu 6.72%, Au3.81g / t t, S19.65%.

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Abstract

The invention discloses a beneficiation method for efficiently recovering high-sulfur gold-copper ores. Sulfur-mixed flotation and scavenging operation, mixed flotation concentrate copper fast flotation operation, regrinding, copper-sulfur separation roughing operation, copper-sulfur separation and scavenging operation and copper beneficiation operation, etc. The invention has remarkable recovery effect, energy saving and low consumption, and strong adaptability to high-sulfur type copper-gold ores.

Description

technical field [0001] The invention relates to the technical field of mineral processing, in particular to a mineral processing method for efficiently recovering high-sulfur gold-copper ores, and is particularly suitable for processing copper sulfide ores with high sulfur content and associated gold mainly including gold wrapped in pyrite. Background technique [0002] The existence of copper in nature includes copper oxide, copper sulfide and natural copper, among which copper sulfide reserves are the largest, and more than 80% of the world's copper is extracted from copper sulfide. my country is a big importer of copper resources, and the separation of copper and sulfur is the key technology that hinders the utilization of domestic copper resources. Domestic researchers have carried out a lot of research on the separation of copper and sulfur in major mines in my country, but it has been difficult to solve the problem of unsatisfactory copper production indicators in high...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B03B9/00
CPCB03B9/00
Inventor 田树国陈晓芳鲁军王乾坤梁治安崔立凤周利华李继福唐浪峰陈水波
Owner 厦门紫金矿冶技术有限公司