Carbonaceous gold ore inhibitor and using method thereof

A technology of gold ore suppression and compound inhibitor, which is applied in the field of carbonaceous gold ore inhibitors, can solve the problem of low cyanide leaching rate in heap leaching of carbonaceous gold ore, achieve a significant cyanide recovery rate, increase the economic income of enterprises, The effect of strong adaptability

Active Publication Date: 2016-04-06
INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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Problems solved by technology

[0005] In order to solve the problem of low cyanidation leaching rate in heap leaching of low-grade carbonaceous gold ore, the present invention provides a carbonaceous gold ore inhibitor and its application method. Before cyanide gold extraction, chemical reagents that are selec

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  • Carbonaceous gold ore inhibitor and using method thereof
  • Carbonaceous gold ore inhibitor and using method thereof
  • Carbonaceous gold ore inhibitor and using method thereof

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[0027] The present invention will be further described below in conjunction with examples.

[0028] 1. Compound inhibitor configuration

[0029] It is obtained through experimental research that the mixing mass ratio of the three substances is 2:2:5, that is, every 9 grams of the compound inhibitor contains 2 grams of sodium dodecylbenzene sulfonate and 2 grams of sodium lauryl sulfate. And 5 grams of polyoxyethylene sorbitan laurate.

[0030] Accurately weigh 2 grams of sodium dodecyl benzene sulfonate, 2 grams of sodium lauryl sulfate and 5 grams of polyoxyethylene sorbitan anhydride laurate, and add the weighed reagents to 180 ml of distilled water (temperature 20 -40℃), stir until all the medicament is dissolved to obtain a compound inhibitor solution with a mass concentration of 5%.

[0031] 2. Use of compound inhibitors and their effects

[0032] The 1# sample is a low-grade carbonaceous oxide ore gold mine in Aba Prefecture, Sichuan, with a carbon content of 2.9%, and the sampl...

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Abstract

The invention discloses a carbonaceous gold ore inhibitor and a using method thereof. The carbonaceous gold ore inhibitor aims at solving the problem that preg-robbing carbon (being mainly of organic carbon) in carbonaceous gold ores adsorbs gold cyanogen complex ions. The carbonaceous gold ore inhibitor comprises the following three materials in percent by mass: 10%-30% of sodium dodecyl benzene sulfonate, 10%-30% of sodium lauryl sulfate and 50%-70% of polyoxyethylene sorbitan laurate. The composite inhibitor is a surface active agent, reduces the adsorption loss of the gold cyanogen complex ions through the adsorption effect on preg-robbing carbon/ iron-sulfur-arsenic oxidation bacteria residue bodies and remarkably increases the cyanidation leaching rate of gold. The inhibitor has the advantages of strong adaptability, good water solubility, good dispersion effect, small influence on environments, simple operation and the like. The popularization and application of the composite inhibitor and the using method thereof can remarkably increase the cyanidation recovery rate of gold in the carbonaceous gold ores and increases the comprehensive utilization ratio of resources and the economic income of enterprises.

Description

technical field [0001] The invention relates to the suppression technology of carbonaceous matter in carbonaceous gold ore, in particular to a carbonaceous gold ore inhibitor and its application method. Background technique [0002] Carbonaceous gold ore is one of the important types of gold ore. It is generally believed that when the organic carbon in the ore is above 0.2%, the cyanidation extraction process of gold will be seriously disturbed; therefore, it cannot be treated by conventional cyanidation. In order to solve the difficult problem of cyanidation leaching of carbonaceous gold ore, various pretreatment methods explored and summarized can be divided into two categories: one is to remove or decompose the carbonaceous matter in the ore, and the other is to make the carbonaceous matter lose the gold cyanide Adsorption activity of the complex. At present, the pretreatment methods of carbonaceous gold ore include flotation, high-temperature roasting, chemical oxidatio...

Claims

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Application Information

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IPC IPC(8): C22B11/08
CPCC22B11/08
Inventor 舒荣波程蓉刘亚川陈炳炎熊述清黄云阶王越
Owner INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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