Synthetic aluminosilicates and their use as heterogeneous equili

Details Synthetic aluminosilicates and their use as heterogeneous equili Synthetic aluminosilicates and their use as heterogeneous equili

1993-06-21

1994-09-13

McFarlane, Anthony

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

4233301, 502 64, 502 66, C01B 3326

Patent

active

053466810

ABSTRACT:
A synthetic aluminosilicate was prepared by (I) forming a gel by hydrolysis, with water or a mixture of water and alkanol, at a pH of 7.0 to 9.5, of (a) 10 to 90 mol percent of monomeric and/or polymeric silicic acid ester and 90 to 10 mol percent of aluminum alcoholate, based on the total amount of silicon and aluminum atoms, and (b) a doping agent selected from a compound of boron or a metal other than aluminum, which is soluble in water, alkanol or a mixture of water and alkanol, in an amount of from 0.1 to 5.0% by weight based on the total weight of the silicon and aluminum compound, and (II) heating the resultant gel to at least 200.degree. C.

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W. Noll, Chemistry and Technology of Silicones, Academic Press, Orlando, 1968, Chapter 5.4.2.2.
M. G. Voronkov et al., The Siloxane Bond, Consultants Bureau, New York, 1978, Chapter 3.12.

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