Dispersing agent used for silicon carbide micro powder water overflow grading and application method thereof

Abstract

The invention relates to a dispersing agent, in particular to a dispersing agent used for silicon carbide micro powder water overflow grading and an application method thereof. The dispersing agent is formed by mixing and stirring the following raw materials according to percentage by weight: 0.1%-5% of glycerol, 5%-30% of sodium hexametaphosphate, 15%-40% of sodium hydroxide, and 35%-60% of water. The dispersing agent has the advantages of being high in dispersing accuracy and improving dispersing efficiency.

Description

technical field [0001] The invention relates to a dispersant, in particular to a dispersant for water overflow classification of silicon carbide micropowder and its application method. Background technique [0002] For the silicon carbide micro-water overflow classification process, a batch of silicon carbide micro-powder raw materials to be classified often has micro-powder particles in multiple particle size ranges, and the micro-powder particles with similar particle sizes in the batch can be screened through the water overflow classification process The micropowder in different particle size intervals needs to be classified and screened according to the corresponding overflow flow interval. In the actual classification process, the overflow flow range is determined according to the fine powder range in the particle size interval, and the overflow classification in the target particle size interval is realized. The way of water overflow classification is mainly by adjusti...

AI Technical Summary

Problems solved by technology

For classification, only when the micropowder is in a good dispersion state can the mixing of large and small particles in the classification be avoided, making high-precision classification possible. If the dispersion is not well resolved, effective classification cannot be carried out.