A powder grinding aid suitable for superfine kaolin powder

Abstract

The invention relates to a powder grinding aid suitable for kaolin, particularly relates to a powder grinding aid suitable for kaolin ultrafine powder, and belongs to the technical field of grinding of kaolin ultrafine powder. The powder grinding aid is prepared from the following substances in parts by weight: 1-5 parts of polymeric alkylol amine, 1-10 parts of polyethylene glycol, 5-15 parts of polyacrylamide, 1-15 parts of sodium pyrophosphate and 20-50 parts of wollastonite in powder. The grinding aid disclosed by the invention is compounded by mineral raw materials and common chemical materials, so that the powder grinding aid is sufficient in raw material source, available, low in toxicity, non-volatile, simple to produce and process, and low in cost; a kaolin grinding production enterprise utilizes the powder grinding aid disclosed by the invention; and the operation is simple and convenient. According to the powder grinding aid disclosed by the invention, the grinding efficiency is improved; the energy consumption is reduced; the surface energy of the kaolin ultrafine powder can also be effectively lowered; particle aggregation is avoided; the fineness of the power grinding aid is improved; the liquidity of the powder grinding aid is improved; and the whiteness of kaolin is not affected.

Description

technical field [0001] The invention relates to a powder grinding aid suitable for kaolin, in particular to a powder grinding aid suitable for kaolin ultrafine powder, and belongs to the technical field of kaolin ultrafine powder grinding. Background technique [0002] Kaolin is a non-metallic mineral with a wide range of uses, mainly used in papermaking, ceramics and refractory materials, followed by coatings, rubber fillers, enamel glazes and white cement raw materials, and a small amount for plastics, paints, pigments, grinding wheels, daily Cosmetics, soaps, chemicals, building materials and other industrial sectors. All applications of kaolin must be processed into a superfine powder before it can be incorporated into other materials for complete integration. [0003] In order to obtain kaolin superfine powder, it is often necessary to grind kaolin for a long time, which not only increases energy consumption, but also increases mechanical wear rate. At the same time, ...

AI Technical Summary

Problems solved by technology

A very good way to solve the above problems is to use grinding aids. However, the grinding aids currently used at home and abroad are not only expensive, but the sources are in short supply, but also the dosage is too large and the quality is uneven. They cannot comprehensively improve the grinding process and are widely promoted. restricted

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