M. B. Sedel’nikova

Talc-based ceramic pigments

The results of a study of synthesis of ceramic pigments from talc are presented. The possibility is demonstrated for pigments to be made with the crystal structure of magnesium metasilicate and forsterite.

Production of ceramic pigments with diopside structure from TALC

The results of investigation of synthesis of ceramic pigments with diopside structure are presented. Two reactions of diopside production are considered. It is indicated that the use of natural talc mineral makes it possible to lower the expense of pigment production and expand the pigment color range.

Zeolites: Raw material for ceramic pigments

The possibilities of using natural zeolite for synthesizing ceramic pigments are investigated. The special features of isomorphism of bi- and trivalent cations in the zeolite lattice are analyzed. It is shown that it is possible to obtain pigments with the structure of anorthite and mullite using a zeolite structure with additives (alumina, wollastonite).

Ceramic pigments with diopside and anorthite structures based on wollastonite

Ceramic pigments with the structures of diopside and anorthite are obtained from natural wollastonite. It is demonstrated that the reactions of synthesis of diopside structure occur in several stages with formation of intermediate products. Mineralizing additives are required for a more complete phase formation of the anorthite structure. The obtained pigments have a vivid color and can be used to decorate porcelain, faience, and majolica products.