A kind of metal sulfide ore flotation inhibitor and its application

Abstract

The invention belongs to the technical field of sulfide ore beneficiation and particularly relates to a metal sulfide ore flotation inhibitor and application thereof. The metal sulfide ore flotation inhibitor is prepared through the following steps that 1, by mass, 10-20 parts of phenolic compounds, 1-2 parts of nucleophiles and 30-60 parts of water are taken and matched; and 2, after all the rawmaterials taken and matched in the step 1 are mixed evenly, a reaction is conducted at the temperature of 75-95 DEG C, and the metal sulfide ore flotation inhibitor is obtained. The obtained product has an inhibiting effect on copper, bismuth, lead, antimony and other sulfide ores, can be applied to flotation separation operation of copper molybdenum, molybdenum bismuth, molybdenum lead, molybdenum sulfur, lead zinc and the like, and is especially suitable for flotation separation of molybdenum-containing sulfide ores and non-molybdenum sulfide ores. The preparation method of the flotation inhibitor is simple to operate, process conditions are mild, raw material cost is low, use is convenient, environmental pollution is small, and industrial production requirements are met.

Description

technical field [0001] The invention belongs to the technical field of sulfide ore beneficiation, in particular to a metal sulfide ore flotation inhibitor and application thereof. Background technique [0002] Flotation is based on the differences in the physical and chemical properties of the mineral surface to achieve separation. The reagents used in the flotation process are called flotation reagents. The main function of the flotation reagents is to improve the hydrophobicity of the mineral surface and the firmness of its adhesion on the air bubbles. The greater the difference in hydrophobicity between mineral particles, the higher the sorting efficiency and the better the flotation index. Therefore, flotation agents play an extremely important role in adjusting the surface properties of minerals and improving the flotation speed and selectivity of minerals. Therefore, one of the purposes of using flotation agents in the flotation process is to increase the difference ...

AI Technical Summary

Problems solved by technology

However, since pure or high-concentration thioglycolic acid is prone to oxidation and self-esterification, resulting in the loss of active ingredients, and the price is relatively expensive, it is difficult to reduce the cost of beneficiation agents, resulting in restrictions on its use in production

[0004] At present, the inhibitors commonly used in sulfide ore flotation have defects such as large dosage, large environmental pollution and high cost. Therefore, it is still of far-reaching significance to develop economical, environmentally friendly, high-efficiency, green, and low-toxicity flotation inhibitors.

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