Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Reexamination Certificate
2007-09-18
2007-09-18
Nguyen, Cam N. (Department: 1754)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
C502S304000, C502S306000, C502S307000, C502S309000, C502S312000, C502S314000, C502S316000, C502S317000, C502S318000, C502S319000, C502S320000, C502S321000, C502S322000, C502S323000, C502S324000, C502S327000, C502S328000, C502S329000, C502S330000, C502S331000, C502S332000, C502S333000, C502S334000, C502S336000, C502S338000, C502S339000, C502S104000, C502S110000, C502S111000, C502S113000, C502S117000, C502S240000, C502S258000
Reexamination Certificate
active
10876150
ABSTRACT:
A method for producing a catalyst for use in the dehydrogenation of ethylbenzene to styrene is disclosed. The catalyst of the present invention comprises a high purity metal and at least one promoter in the form of solid oxides, oxide hydrates, hydroxides, hydroxycarbonates or metals. The catalyst is prepared via a method which comprises the preparation of at least one high purity iron precursor with or without an additional support material and which uses a nominal amount of water in the catalyst production. The catalyst pellets prepared with the high purity metal precursor are essentially free of sulfur and chloride contaminants.
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Hu X. D.
O'Brien Robert J.
Smith Dennis J.
Nguyen Cam N.
Simunic Joan L.
Sud-Chemie Inc.
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