摘要 |
The invention relates to a method for preparing a composition, that is a talcose composition, comprising synthetic mineral particles which contain silicon, germanium and metal, have a crystalline and lamellar structure, and are of formula (Si<SUB>x</SUB>Ge<SUB>1-x</SUB>)<SUB>4 </SUB>M<SUB>3</SUB>O<SUB>10</SUB>(OH)<SUB>2</SUB>, wherein M is at least one divalent metal and is of formula Mg<SUB>y(1)</SUB>Co<SUB>y(2)</SUB>Zn<SUB>y(3)</SUB>Cu<SUB>y(4)</SUB>Mn<SUB>y(5)</SUB> Fe<SUB>y(6)</SUB>Ni<SUB>y(7)</SUB>Cr<SUB>y(8)</SUB>, and x is a real number of the interval [0; 1]. According to said method, a gel containing silicon, germanium and metal, of formula - (Si<SUB>x</SUB>Ge<SUB>1-x</SUB>)<SUB>4</SUB>M<SUB>3</SUB>O<SUB>11</SUB>, n'H<SUB>2</SUB>O -, in the liquid state, is subjected to a hydrothermal treatment over a defined period of time and at a temperature of between 300°C and 600°C, said time and temperature being selected according to the desired particle size and structural stability for the mineral particules containing silicon, germanium and metal, to be prepared. |
申请人 |
LUZENAC EUROPE SAS;CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N.R.S.);MARTIN, FRANCOIS;FERRET, JOCELYNE;LEBRE, CEDRIC;PETIT, SABINE;GRAUBY, OLIVIER;BONINO, JEAN-PIERRE;ARSEGUEL, DIDIER;DECARREAU, ALAIN;FERRAGE, ERIC |
发明人 |
MARTIN, FRANCOIS;FERRET, JOCELYNE;LEBRE, CEDRIC;PETIT, SABINE;GRAUBY, OLIVIER;BONINO, JEAN-PIERRE;ARSEGUEL, DIDIER;DECARREAU, ALAIN;FERRAGE, ERIC |