Substitution of Sn in place of Al in the framework of molecular

Details Substitution of Sn in place of Al in the framework of molecular Substitution of Sn in place of Al in the framework of molecular

1994-11-08

1996-05-21

Bell, Mark L.

Chemistry of inorganic compounds

Zeolite

Isomorphic metal substitution

423715, 423DIG15, 423DIG25, 423DIG26, 423DIG28, 502 77, 502 78, 502 79, 502 85, C01B 3906, C01B 3920, C01B 3926, C01B 3932

Patent

active

055187080

ABSTRACT:
Molecular sieve compositions are prepared by extracting aluminum and substituting chromium and/or tin for extracted aluminum to give molecular sieve products containing framework chromium and/or tin atoms. The process of preparing the chromium and/or tin-containing molecular sieves involves contacting a starting molecular sieve with a solution or slurry of at least one of a fluoro salt of chromium or a fluoro salt of tin under effective process conditions to provide for aluminum extraction and substitution of chromium and/or tin.

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Atlas of Zeolite Structures, Meier et al. 1992 pp. 128-129.

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