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Method for eliminating calcium ion effect in gold ore bulk leaching by using descaling agent

A descaling agent and calcium ion technology, applied in the chemical industry, can solve the problems of increased regeneration cost of activated carbon, lower gold grade of gold-loaded carbon, and low gold leaching rate, so as to shorten the production cycle, increase the leaching rate, and improve the treatment of ore. volume effect

Active Publication Date: 2007-08-08
CHANGCHUN GOLD RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The object of the present invention is to provide a method for utilizing a descaling agent to eliminate the influence of calcium ions in gold heap leaching production, which solves the leaching of gold caused by the formation of calcium scale Low production rate, decreased gold grade of gold-loaded carbon, increased cost of activated carbon regeneration, and serious shutdowns

Method used

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  • Method for eliminating calcium ion effect in gold ore bulk leaching by using descaling agent
  • Method for eliminating calcium ion effect in gold ore bulk leaching by using descaling agent
  • Method for eliminating calcium ion effect in gold ore bulk leaching by using descaling agent

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Embodiment 1

[0022] The present invention utilizes descaling agent to eliminate the method for calcium ion influence in gold heap leaching production, the embodiment of heap leaching production semi-industrial test in Yunnan Yuanjiang Gold Mine:

Embodiment 2

[0024] The present invention utilizes descaling agent to eliminate the method for the influence of calcium ion in gold heap leaching production, the use embodiment in the gold heap leaching production of Taifu Gold Mine in Hengxian County, Guangxi:

Embodiment 3

[0027] It can be seen from the comparison of the above data that the addition of sodium tripolyphosphate effectively solves the various harmful effects of calcium ions on the heap leaching production process, makes the production process smooth, improves the gold grade of gold-loaded carbon and the leaching rate of gold, The single-heap production cycle is shortened, and the improvement effect on various economic indicators of heap leaching production is obvious.

[0028] The use of sodium tripolyphosphate as a descaling agent in the heap leaching production process effectively eliminates the harmful effects of calcium ions on all production links, enables production to proceed smoothly, reduces production costs, increases production technology content, and improves production efficiency. The leaching rate of gold is of great significance for improving the economic benefits of gold heap leaching mines and making full use of ore resources.

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Abstract

The invention discloses an eliminating method of calcium ion in the gold pile leaching course through detergent, which comprises the following steps: adding sodium tripolyphosphate in the liquid reserving pond of sprinkling liquid in the alkaline-adjusting period; piling the sprinkling liquid; adding certain quantity of tripolyphosphate in each sprinkling circulation continuously until finishing adding the whole quantity.

Description

technical field [0001] The invention relates to chemical industry, in particular to a method for eliminating the influence of calcium ions in gold heap leaching production by using a descaling agent, especially a method for eliminating calcium ions in gold heap leaching production by using the complex reaction of sodium tripolyphosphate and calcium ions. Methods of detrimental effects of ions on gold spray leaching and adsorption on activated carbon. Background technique [0002] As we all know, there are many kinds of gold production processes, and the heap leaching process is suitable for processing low-grade oxidized ores. The rotating nozzle sprays sodium cyanide aqueous solution to the ore heap. The reaction between sodium cyanide and gold makes the gold in the ore dissolve into the liquid phase, and then enters the activated carbon adsorption system with the leaching solution, and the dissolved gold is absorbed by the activated carbon, thereby achieving gold recovery. ...

Claims

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Application Information

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IPC IPC(8): C22B3/04C22B11/08C22B3/24
CPCY02P10/20
Inventor 薛臣郑晔王海东
Owner CHANGCHUN GOLD RES INST
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