ALUMOSILICATES DERIVATIVES Russian patent published in 2000 - IPC

FIELD: chemical industry. SUBSTANCE: described is preparation of new materials in the form of alumosilicate derivatives from 2:1 laminated clay minerals which are obtained by chemical modification of 2:1 laminated clay minerals by reaction with salt of formula MX wherein M is ammonium ion or alkali metal cation, and X is halide. The characteristics of the resulting materials are as follows: (a) signal of diffraction of X-rays of amorphous sample is evident, as wide peak in using diffraction of X-ray of powder from 22^o to 32^o and irradiation CuK_α and (b) presence of predominantly coordinated tetrahedral aluminium. EFFECT: wide spectrum of use, high cation exchange power and specific surface. 15 cl, 4 dwg, 4 ex, 2 tbl