Method for improving recovery rates of gold and silver from chalcopyrite

A recovery rate, chalcopyrite technology, applied in solid separation, flotation and other directions, can solve the problem of low recovery rate of gold and silver in associated ores, and achieve the effect of improving recovery rate of gold and silver and improving hydrophobic performance

Inactive Publication Date: 2012-07-25
安徽金联地矿科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In view of the fact that the recovery of existing associated gold and silver minerals is at a relatively low level, the purpose of the present invention is to provide a method for recovering gold and silver in chalcopyrite, which can effectively solve t

Method used

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  • Method for improving recovery rates of gold and silver from chalcopyrite
  • Method for improving recovery rates of gold and silver from chalcopyrite
  • Method for improving recovery rates of gold and silver from chalcopyrite

Examples

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[0017] Example 1:

[0018] Such as figure 1 As shown, the method for recovering gold and silver in chalcopyrite, the original ore is chalcopyrite containing associated gold and silver, including the following steps:

[0019] (1) The raw ore is crushed to make the ore size less than 12mm, and then enters the powder silo. Lime is added to the crushed ore. The amount of ore added per ton is 4000g, and the ore is ground to a fineness of -0.074mm to 60%~ 65%, its pulp is mixed with reagents, and the added reagent and dosage is per ton of raw ore plus butylamine black powder ((C4H 9 O) 2 PSSNH 4 ) And Butyl Xanthate (C 4 H 9 OCSSNa) 50g mixed collector, 20g foaming agent; control the pH of the slurry to 12, stirring time 2min, enter the roughing operation of flotation copper, roughing time 5min;

[0020] (2) After rough separation, the slurry is added again. The added reagent and dosage are 7g of butylamine black powder and butyl xanthate mixed collector and 10g foaming agent per ton of r...

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Abstract

The invention discloses a method for improving recovery rates of gold and silver from chalcopyrite. The method comprises the steps of: firstly crushing raw ore until the granularity is smaller than 12mm, adding quicklime, grinding, adding water to obtain ore pulp, then adding a collector and a foaming agent for chemical regulation, stirring, entering rough concentration for copper floatation, and carrying out scavenging, concentration and other steps on the ore pulp after rough concentration to obtain gold-silver-containing copper concentrate with high gold and silver grades. According to the invention, on the basis of ensuring traditional copper concentration economic and technical norms, the gold and silver recovery rates are improved by improving gold and silver grades in the copper concentrate, and the recovery rates of the accompany gold and silver in the chalcopyrite reach 85.11% and 89.97%, respectively; and the method is simple, the onsite production is easy to operate and the comprehensive utilization rate of ore resources is improved.

Description

technical field [0001] The invention relates to the technical field of recovering gold and silver from associated ores, in particular to a method for recovering gold and silver from chalcopyrite containing associated gold and silver. Background technique [0002] Associated ore refers to a mineral deposit that contains other minerals. Generally, all mines contain associated ore. The content of associated ore is generally not too high. Only when its value is large, it will be mined and separated. The original beneficiation process of my country's non-ferrous metal mines basically focuses on the recovery of main metals, and the recovery of associated gold and silver minerals by the way, resulting in a low level of recovery of associated gold and silver minerals. The natural gold in the associated gold minerals is generally embedded in the carrier minerals in the form of interstitial gold and fissure gold. If it exists as wrapped gold, its particle size is too small to dissocia...

Claims

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Application Information

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IPC IPC(8): B03D1/02
Inventor 秦月琴李凡殷明沈静明桂林李雨浓王莉牛杏杏张传琦
Owner 安徽金联地矿科技有限公司
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