CRYSTALLINE METAL PHOSPHATES AND METHOD OF PREPARATION THEREOF Russian patent published in 2000 - IPC

FIELD: industrial inorganic synthesis. SUBSTANCE: invention more particularly relates to crystalline aluminum and silicon phosphates of the molecular sieve type with new structure that can be utilized as catalysts or their carriers. Microporous crystalline metal phosphates possess basic framework structure, chemical composition of which reflects their synthesis mode and is defined by molar ratios of oxides expressed by formula mR(M_xAl_yP_z)O₂, wherein M is silicon, x+y+z=1, m varies from 0.02 to 0.3, R is at least one template agent, x=0-0.5, y=0.25-0.5, z=0.25-0.5, and wherein at least one chemically active of fluoride is present in effective quantity to obtain product. Material shows powder diffraction pattern characteristic of x-rays. Surface parameters of material make it appropriate for utilization as catalyst or catalyst carrier in processes of various-type hydrocarbon conversion and oxidative burning processes. EFFECT: extended choice of catalyst materials. 7 cl, 4 tbl, 3 ex