Composite inhibitor for inhibiting arsenic ore floatation

Abstract

The present invention relates to a composite inhibitor for inhibiting floatation, belonging to a beneficiation inhibitor. The composite inhibitor is made up by using three components of CaO, Na2SO3.7H2O and sodium humate through a certain preparation process, in which the CaO is regulating agent and Na2SO3.7H2O and sodium humate are inhibitors. The composite inhibitor has the advantages in that: the separation effect of copper and arsenic is greatly raised, and the recovery utilization rate is very notable. During the separation of copper and arsenic, the composite inhibitor allows the copper ion generated by secondary copper sulphide mineral to have the effect of activity elimination and to be capable of improving the separation effect of copper and arsenic. By adopting the composite inhibitor of the separation of copper and arsenic, the valuable copper with 53.10% of recovery can be obtained in the separating flotation of arsenic, copper and silver mine; and the corporate income is raised, and the significance for improving economic benefit of the mine is greatly enhanced.

Description

technical field [0001] The invention relates to an ore dressing inhibitor, in particular to a special-effect composite inhibitor for separating copper and arsenic from gold, silver, copper, arsenic ores containing secondary copper minerals. Background technique [0002] As we all know, the world's copper resources are abundant and widely distributed throughout the five continents. More than 150 countries have copper resources, and the reserves are relatively concentrated; China's copper mines are not only widely distributed, but also have a complete range of industries, the most important of which are porphyry, Skarn type, layered type, volcanic deposit type and copper-nickel sulfide type, the copper reserves of these five types of deposits account for more than 90% of the total copper reserves in China; Among the proven reserves, sulfide ore accounts for 87%, oxide ore accounts for 10%, and mixed ore accounts for only 3%. In some gold and silver deposits, copper and arsenic...

AI Technical Summary

Problems solved by technology

[0016] The object of the present invention is to provide a kind of compound inhibitor that suppresses the flotation of arsenic mineral, this inhibitor has deactivation effect to the copper ion in the gold-silver ore containing secondary copper mineral, solves the problem of copper arsenic extraction by flotation method. During the separation process, due to the activation of arsenic minerals by copper ions, the arsenic content in the concentrate exceeds the standard, etc.

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