FIELD: construction; chemistry.
SUBSTANCE: invention relates to methods of producing construction chemical compositions for producing gypsum articles containing finely dispersed calcium sulphate. Disclosed is a method of producing a construction chemical composition containing finely dispersed calcium sulphate with a particle size of less than 10.0 mcm, and a dispersing agent, which is a polyaryl ether, including steps of providing a suspension containing said calcium sulphate particles with a size equal to or greater than 10.0 mcm, water and said dispersing agent, and wet grinding of the obtained paste-like mixture, wherein the ratio of the mass of fine particles and the mass of the dispersing substance is in range of 0.1:99.9−99.9:0.1. Also disclosed is the use of polyaryl ether as a dispersing substance in the process of wet grinding to obtain fine particles of calcium sulphate.
EFFECT: disclosed method enables to obtain a storage-stable construction chemical composition which can be used as an accelerating additive for gypsum-containing compositions.
8 cl, 4 tbl
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