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Production method for comprehensive recovery of antimony-rich gold concentrates

A production method and technology of gold concentrate, which is applied in the field of comprehensive recovery of antimony-rich gold concentrate, can solve problems such as the difficulty of element separation and recovery, and achieve the effects of improving extraction purity, preventing coal ash from entering, and preventing cost increases

Active Publication Date: 2017-09-22
烟台市金奥环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a production method for the comprehensive recovery of antimony-rich gold concentrate, and the present invention solves the problem of difficult separation and recovery of elements in the antimony-rich gold concentrate

Method used

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  • Production method for comprehensive recovery of antimony-rich gold concentrates
  • Production method for comprehensive recovery of antimony-rich gold concentrates
  • Production method for comprehensive recovery of antimony-rich gold concentrates

Examples

Experimental program
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Effect test

Embodiment 1

[0029] 1) Prepare the mixed solution: add the antimony-containing gold concentrate to the solution of hydrochloric acid and water at a mass ratio of 1:5, add the leaching agent ferric chloride, and heat to 90°C to obtain the mixed solution;

[0030] 2) Preparation of chlorinated slag and antimony-enriched leaching solution: pass chlorine gas into the mixed solution obtained in step 1), keep the potential of the mixed solution at 300-350mv, leach for 2 hours at a temperature of 90°C, and filter to obtain chlorinated slag and antimony-rich leachate;

[0031] Wherein utilize antimony-rich leaching solution to prepare antimony powder and carry out according to the following steps:

[0032] a) Prepare heated antimony-rich leaching solution: heat the antimony-rich leaching solution to 60°C to obtain a heated antimony-rich leaching solution;

[0033] b) Preparation of antimony powder and reducing solution: Add iron powder into the heated antimony-rich leaching solution prepared in s...

Embodiment 2

[0041] 1) Preparation of mixed solution: add antimony-containing gold concentrate to a solution of hydrochloric acid and water at a mass ratio of 1:5, add ferric chloride as a leaching agent, and heat to 95°C to obtain a mixed solution;

[0042] 2) Preparation of chlorinated slag and antimony-enriched leaching solution: pass chlorine gas into the mixed solution obtained in step 1), keep the potential of the mixed solution at 300-350mv, leach for 2 hours at a temperature of 95°C, and filter to obtain chlorinated slag and antimony-rich leachate;

[0043] Wherein utilize antimony-rich leaching solution to prepare antimony powder and carry out according to the following steps:

[0044] a) Prepare heated antimony-rich leaching solution: heat the antimony-rich leaching solution to 60°C to obtain a heated antimony-rich leaching solution;

[0045] b) Preparation of antimony powder and reducing solution: Add iron powder into the heated antimony-rich leaching solution prepared in step ...

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Abstract

The invention relates to a production method for comprehensive recovery of antimony-rich gold concentrates. According to the method, antimony-containing gold concentrates are added into a hydrochloric acid water solution to be evenly mixed, a leaching agent is added, chlorine is injected under the certain temperature, the electric potential is maintained to a certain extent, filtering is conducted after leaching is conducted for a period of time, and then chloride residues and antimony-rich leach liquor are obtained; and iron powder is added into the antimony-rich leach liquor, a reaction is conducted for a period of time under the condition of the certain temperature and the electric potential, filtering is conducted, and antimony powder and a reaction solution are formed. The production method can effectively separate antimony from the elements of gold, sulfur and arsenic, effectively recover antimony and achieve highly comprehensive utilization of precious metal resources.

Description

technical field [0001] The invention relates to a production method for comprehensive recovery of antimony-rich gold concentrate. Background technique [0002] The existing high-antimony, high-arsenic and high-sulfur gold concentrates on the market contain high arsenic, and the antimony smelting process is quite difficult for antimony smelting. Using the conventional alkaline sodium sulfide leaching electrowinning process, not only the recovery rate of antimony is low and the index is unstable, but also the operation is difficult and the cost is high. The antimony element in such minerals has a great influence on the smelting of gold, if it cannot be effectively removed, it will seriously affect the recovery rate of gold. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a production method for comprehensive recovery of antimony-rich gold concentrate. The invention solves the problem of difficult separation and re...

Claims

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Application Information

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IPC IPC(8): C22B3/10C22B30/02C22B3/46C22B30/04C01B17/74C22B11/06C22B1/08C22B1/10C22B1/02
CPCC01B17/74C22B1/02C22B1/08C22B1/10C22B3/045C22B3/10C22B3/46C22B11/06C22B30/02C22B30/04Y02P10/20
Inventor 王志强张培生孙振李胜春杜子益
Owner 烟台市金奥环保科技有限公司
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