Process for forming alumino-silicate derivatives
AssigneeThe University of Queensland
InventorsBalbir Singh, Ian Donald Richard Mackinnon, David Page
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Abstract
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 utilized in conjunction 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.
Claims14
A process for the preparation of an amorphous alumino-silicate derivative, said amorphous alumino-silicate derivative having the general formula
- MpAlqSi2Or(OH)s.uH2O
- wherein 0.2≦p≦2.0, 0.5≦q≦2.5, 4.0≦r≦12, 0.5≦s≦4.0, and0.0≦u≦6.0, and wherein M is an ammoniumium or an alkali metal cation;
- said process comprising mixing a solid alumino-silicate starting material with a solid alkali metal hydroxide or ammonium hydroxide to form a solution having a molar excess of alkali metal hydroxide or ammonium hydroxide, and heating to form the amorphous alumino-silicate derivative.
Dependencies are inferred from the claim text.