A kind of inhibitor, flotation agent and application of iron-bearing sulfide ore

Abstract

The invention belongs to the field of sulphide ore flotation, and particularly discloses application of a 2-alkyl amino substituted carboxylic acid compound as an inhibitor of iron-containing sulphideore. The invention further provides a sulphide ore floating agent containing the 2-alkyl amino substituted carboxylic acid compound. It is found that the 2-alkyl amino substituted carboxylic acid compound can selectively inhibit the iron-containing sulphide ore in flotation of the sulphide ore such as ferromolybdenum, galvanized iron, leaded iron, copper containing iron and bismuth containing iron, the flotation technological process can be simplified, the agent dosage is reduced, environmental pollution is reduced, and the production cost is reduced.

Description

technical field [0001] The invention relates to a method for preparing an iron-containing sulfide ore inhibitor and a method for using the same, belonging to the technical field of sulfide ore beneficiation. Background technique [0002] The development of inhibitors for iron-containing sulfide minerals has a long history. According to the different properties of inhibitors, they can be divided into two categories: inorganic inhibitors and organic inhibitors. For many years, the flotation separation of iron-containing sulfide ores has been dominated by inorganic inhibitors. Commonly used iron-containing sulfide ore inhibitors are cyanide, lime, some redox agents (such as: potassium dichromate, sodium dithionite, hydrogen peroxide, sodium sulfide, potassium permanganate, bleaching powder, sulfite, sulfur dioxide, etc. ). Among them, lime is the most widely used inhibitor. Generally, lime is used to suppress pyrite, which is called lime process. Although lime can effectiv...

AI Technical Summary

Problems solved by technology

But in actual production, there are also many problems, such as zinc sulfate as an inhibitor of sulfide ore, the effect of using alone is poor; the oxidant represented by potassium permanganate is not easy to control due to the large amount of use, which is not conducive to production operations and management. At the same time, it affects the comprehensive recovery of precious metals such as gold and silver in the ore, resulting in resource loss

Obviously, it is difficult to make new breakthroughs in the flotation separation of sulfide ores, especially in the flotation separation of complex sulfide ores

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