Synthetic mineral compound, composition including such a compound and method for manufacturing such a compound

US11174168B2 · kind B2 · utility

Assignees

• CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE · FR
• UNIVERSITE PAUL SABATIER—TOULOUSE III · FR

Inventors

• Francois Martin · Hameau du Château, FR
• Christophe Le Roux · Avignonet-Lauragais, FR
• Pierre Micoud · Peyssies, FR
• Marie CLAVERIE · Tarnos, FR
• Cyril Aymonier · Bègles, FR

Key dates

• Filing date: Sep 27, 2016
• Grant date: Nov 16, 2021
• Expiry date: Dec 19, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2004/64
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

The invention relates to a mineral compound, referred to as synthetic mica, with formula At(Six-Ge1x)4MzO10(OH)2, wherein: A designates at least one monovalent interfoliar cation of a metal element, A having the formula Liw(1)Naw(2)Kw(3)Rbw(4)Cssw(5), each instance of w(i) representing a real number in the interval [0; 1], such that the sum of the instances of w(i) is equal to 1; t is a real number in the interval [0.3; 1]; x is a real number in the interval [0; 1]; M designates at least one divalent metal having the formula Mgy(1)Coy(2)Zny(3)Cuy(4)Mny(5)Fey(6)Niy(7)Cr, each instance of y(i) representing a real number in the interval [0; 1], such as the formula (A); and z is a real number in the interval [2.50; 2.85]. The invention also relates to a composition comprising such a compound and a method for preparing such a compound.