C - Chemistry – Metallurgy – 01 – G
Patent
C - Chemistry, Metallurgy
01
G
402/629, 252/2.E
C01G 51/00 (2006.01) B01J 29/04 (2006.01) C07C 1/04 (2006.01) C07C 1/20 (2006.01) C07C 29/156 (2006.01) C10G 3/00 (2006.01)
Patent
CA 1192891
ABSTRACT OF THE DISCLOSURE Crystalline metal silicates and metal borosilicate compositions exhibit useful catalytic properties when the reaction mixture from which they are prepared includes a metal whose oxide precipitates at a pH above 7 and an amount of urea or other compound which upon hydrolysis releases ammonia. The precipitated metal hydroxide is incorporated into the crystalline composition as it forms. These compositions exhibit the X-ray pattern of a ZSM-5 zeolite and have an aluminum content of less than 100 wppm and a composition expressed in terms of its oxides as follows: Image where R is tetramethyl ammonium cation, ammonium cation, hydrogen cation, an alkali metal cation, metal cation or mixtures thereof, n is the valence of R, M is a metal whose hydroxide precipitates at a pH above 7 and m is the valence of said metal. These crystalline silicates and borosilicates are usefully employed as catalysts in hydrocarbon con- versions.
401485
Hinnenkamp James A.
Walatka Vernon V.
Equistar Chemicals Lp
Mcfadden Fincham
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