A kind of using method of carbonaceous gold ore inhibitor
A technology for inhibiting gold ore and compound inhibitor is applied in the field of inhibiting carbonaceous substances in carbonaceous gold ore, which can solve the problems of low cyanidation leaching rate of carbonaceous gold ore heap leaching, and achieve a significant cyanidation recovery rate, strong Adaptability, low environmental impact
Active Publication Date: 2017-12-22
INST OF MULTIPURPOSE UTILIZATION OF MINERAL RESOURCES CHINESE ACAD OF GEOLOGICAL SCI
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[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 method for using a carbonaceous gold ore inhibitor. Chemical reagents that are selectively adsorbed and covered on the surface of carbonaceous materials are added before gold extraction to eliminate the influence of carbonaceous materials on the adsorption of gold cyanide complexes during the cyanidation gold leaching process, and significantly increase the cyanide leaching rate of gold
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[0026] The present invention will be further described below in conjunction with example.
[0027] 1. Compound inhibitor configuration
[0028] Obtained through experimental research, select the mixing mass ratio of these three kinds of materials to be 2:2:5, promptly contain 2 grams of sodium dodecylbenzenesulfonate, 2 grams of sodium lauryl sulfate in every 9 grams of this composite inhibitor and polyoxyethylene sorbitan laurate 5 g.
[0029] Accurately weigh 2 grams of sodium dodecylbenzenesulfonate, 2 grams of sodium dodecyl sulfate and 5 grams of polyoxyethylene sorbitan laurate, and add the weighed reagents to 180ml of distilled water (temperature 20 -40°C), stirred until all the reagents were dissolved, and a compound inhibitor solution with a mass concentration of 5% was obtained.
[0030] 2. The use and effect of compound inhibitors
[0031] The 1# sample is a low-grade carbonaceous oxidized gold mine in Aba Prefecture, Sichuan Province, with a carbon content of 2....
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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 method for using the inhibitor of carbonaceous gold ore. 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 oxidation, ...
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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