Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Phosphorus or compound containing same
Reexamination Certificate
2006-06-28
2009-02-10
Wood, Elizabeth D (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Phosphorus or compound containing same
C502S214000, C502S060000, C502S077000, C502S078000, C502S079000
Reexamination Certificate
active
07488700
ABSTRACT:
Disclosed are a hydrothermally stable porous molecular sieve catalyst and a preparation method thereof. The catalyst consists of a product obtained by the evaporation of water from a raw material mixture comprising a molecular sieve having a framework of Si—OH—Al—, a water-insoluble metal salt and a phosphate compound. The catalyst maintains its physical and chemical stabilities even in an atmosphere of high temperature and humidity. Accordingly, the catalyst shows excellent catalytic activity even when it is used in a severe process environment of high temperature and humidity in heterogeneous catalytic reactions, such as various oxidation/reduction reactions, including catalytic cracking reactions, isomerization reactions, alkylation reactions and esterification reactions.
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Choi Sun
Choi Won Choon
Kang Na Young
Kim Hee Young
Kim Suk Joon
Darby & Darby P.C.
Korea Research Institute of Chemical Technology
SK Energy Co., Ltd.
Wood Elizabeth D
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