Coal flotation agent

Abstract

The invention relates to a coal flotation agent and belongs to the technical field of chemical assistants. The coal flotation agent is prepared from the raw materials comprising, by mass, 60%-75% of collecting agent, 20%-40% of foaming agent and 1%-5% of complexing agent. The collecting agent is composed of, by mass, 60%-70% of triethyl phosphate, 20%-30% of diesel oil and 10%-20% of dichloromethane. The coal flotation agent is added in a one-off manner when used, the dosage of the flotation agent can be adjusted according to the composition of coal, the composition and ratio of the coal flotation agent are relatively stable for the same type of coal, the pertinence is good, the problem that by the adoption of a traditional method, the collection agent, the foaming agent and other single components are used in a classified manner is avoided, the blindness and randomness of addition and mixing are avoided, the coal flotation agent is easy to use and high in selectivity for coal, the application amount is reduced, and the coal flotation agent can be circularly used.

Description

technical field [0001] The invention relates to a coal flotation agent, which belongs to the technical field of chemical auxiliary agents. Background technique [0002] The flotation coal preparation method is a coal preparation method for sorting coal particles on the basis of comprehensively considering the different characteristics of the physical and chemical properties of the mineral surface, and it is also a widely used coal preparation method at present. The surface of coal particles has hydrophobicity. At the same time, after adding flotation agent, the hydrophobicity of coal surface will also be improved. The form is recycled. [0003] The flotation agent used in flotation coal preparation plays an important role in the coal preparation effect. In the traditional flotation coal preparation process, the use of collectors has different affinity for the coal particles and ground mud in the coal preparation. And selectivity, thus forming hydrophobic clean coal and hyd...

AI Technical Summary

Problems solved by technology

Because the flotation agent used in the traditional technology uses a variety of raw materials to be stored and added by classification, the equipment investment is large, the process technology is relatively complicated, and the technical adjustment of each component at the flotation site is relatively complicated, which requires higher experience of the operator and is arbitrary. Too big