Patent ID: 6479427
Filing Date: 2002-11-12
Classification: C01B

Abstract:
A silico-titanate composition comprising the formula and having a mole ratio as follows:xM:ySi:aTi:zMD wherein:M is a cation and is an element of Group I or II of the Periodic Table, H, ammonium or alkylammonium cation; MD is a metal dopant from elements of Group III, V, IV, VIII or I of the Periodic Table; and: (a) the composition comprises H, ammonium or alkylammonium cation and has a crystalline structure that exhibits as its primary x-ray diffraction line one at a 2&thgr; of 11.00 or less; (b) when x:y<1.0, the composition comprises a crystalline structure that exhibits as its primary x-ray diffraction line one at a 2&thgr; less than 11.0, and (c) when x:y>1.0, the composition comprises a crystalline structure that exhibits as its primary x-ray diffraction line one at a 2&thgr; greater than 9.0; and y:a is 0.01 to less than about 1; z:a is 0.0 to 1.0; x:a is 0.0 to 2.0; z is 0.0 to 2.0; x is 0.0 to 2.0; y is 0.01 to 0.96; and a is 1.0.