Method for preparing talc composition comprising metal mineral particles - Synthesis of silicon / germanium

摘要

Has a crystal and layer structure, M points to the at least one divalent metal, the formula _{Mg y (1) Co y (} 2) Zn y (3) Cu y (4) Mn y (5) Fe y (6 ₎ having a _{Ni y (7) Cr y (} 8), each x is distance; a real number of [0 1], synthesis having the formula _{(Si x Ge 1-x)} 4 M 3 O 10 (OH) 2 the silicon / germanium - a process for preparing a composition, referred to as talc composition comprising a metal mineral particles, the formula in the liquid state _{(Si x Ge 1-x)} 4 M 3 O 11, n'H 2 O in silicon / germanium - performs hydrothermal treatment of metal gel, silicon / germanium to be prepared - time selected according to the desired particle size and structural stability to the metal mineral particles, to conduct the hydrothermal treatment at a temperature of 300 ° C. to 600 ° C. It relates to a method and said.