Chemistry of inorganic compounds – Zeolite – Seed used
Reexamination Certificate
2006-06-27
2006-06-27
Sample, David (Department: 1755)
Chemistry of inorganic compounds
Zeolite
Seed used
C423S716000, C423S335000, C423SDIG030, C585S639000, C585S640000
Reexamination Certificate
active
07067108
ABSTRACT:
The synthesis of a crystalline material, in particular a high silica zeolite, having a chabazite-type framework is aided by the addition to the synthesis mixture of seeds of an AEI framework-type material. The chabazite-type product has a relatively small crystal size and exhibits activity and selectivity in the conversion of methanol to lower olefins, especially ethylene and propylene.
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Cao Guang
Guram Anil S.
Li Hailian
Mertens Machteld M.
Muraoka Mark T.
ExxonMobil Chemical Patents Inc.
Sample David
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