Synthesis of kenyaite-type layered silicate material and...

Details Synthesis of kenyaite-type layered silicate material and... Synthesis of kenyaite-type layered silicate material and...

C - Chemistry, Metallurgy

01

B

23/186, 23/189

C01B 33/32 (2006.01) C01B 33/26 (2006.01)

Patent

CA 2035444

F-4961 SYNTHESIS OF KENYAITE-TYPE LAYERED SILICATE MATERIAL AND PILLARING OF SAID MATERIAL ABSTRACT A method for synthesizing a crystalline Kenyaite-type silicate comprises preparing a mixture comprising sources of alkali metal cations (AM), silica, a non-alkali metal (M) of valence n, water and an organic compound (R), selected from an alkylamine, a trialkylamine, a tetraalkylammonium compound and trimethylhexamethylene diamine, said alkyl having 1 to 12 carbon atoms, and said mixture having a composition, in terms of mole ratios, within the following ranges: SiO2/MmOn at least about 40 H2O/SiO2 5 to 200 OH-/SiO2 0 to 5 AM/SiO2 0.05 to 3 R/SiO2 0.01 to 3 The mixture is maintained under sufficient conditions to form crystals of the required silicate and the silicate crystals are then recovered.

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