Process for forming alumino-silicate derivatives

Details Process for forming alumino-silicate derivatives Process for forming alumino-silicate derivatives

C - Chemistry, Metallurgy

01

B

C01B 33/46 (2006.01)

Patent

CA 2201925

A process for the preparation of an amorphous alumino-silicate derivative which involves reacting a solid corresponding starting material with MOH where M is alkali metal or ammonium cation. The solid corresponding starting material may be selected from montmorillonite, kaolin, natural zeolite (e.g., clinoliptolite/heulandite) as well as illite, palygorskite and saponite and additional reactant MX wherein X is halide may be utilised in conjuction with MOH. The invention also includes alumino-silicate derivatives of the general formula MpAlqSi2Or(OH)sXt.uH2O as well as alumino-silicate derivatives of the general formula MpAlqSi2Or(OH)s.uH2O.

Processus de préparation d'un dérivé d'alumino-silicate amorphe, consistant à faire réagir un matériau de départ correspondant solide avec MOH, où M est un cation de métal alcalin ou un cation d'ammonium. Le matériau de départ correspondant solide peut être choisi parmi les suivants: montmorillonite, kaolin, zéolithe naturelle (par exemple, clinoliptolite/heulandite), ou encore illite, palygorskite et saponite. Un réactant supplémentaire MX, dans lequel X représente un halogénure, peut être utilisé en liaison avec MOH. La présente invention concerne les dérivés d'alumino-silicates de formule générale M¿p?Al¿q?Si¿2?O¿r?(OH)¿s?X¿t?.uH¿2?O ainsi que ceux de formule générale M¿p?Al¿q?Si¿2?O¿r?(OH)¿s?.uH¿2?O.

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