Substituted aluminosilicate compositions and process for preparing same
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United States of America Patent
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Mar 24, 1992
Issued Date -
N/A
app pub date -
Jul 23, 1990
filing date -
Apr 26, 1984
priority date (Note) -
Expired
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Abstract
This invention relates to molecular sieve compositions and processes for using the molecular sieves. The molecular sieves have a three-dimensional microporous crystalline framework structure of tetrahedral oxide units of AlO.sub.2, SiO.sub.2, TiO.sub.2 and/or FeO.sub.2. These molecular sieves can be prepared by contacting a starting zeolite with a solution or slurry of a fluoro salt of titanium and/or iron under effective process conditions to extract aluminum from the zeolite framework and substitute titanium and/or iron. The molecular sieves can be used as catalysts in hydrocarbon conversion processes and other processes.
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