Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Silicon containing or process of making
Reexamination Certificate
2006-09-22
2008-11-18
Nguyen, Cam N. (Department: 1793)
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Silicon containing or process of making
C502S349000, C502S350000
Reexamination Certificate
active
07452841
ABSTRACT:
Mixed ketones are prepared from a mixture of carboxylic acids in a process with high selectivity by using an improved catalyst. The catalyst contains zirconium dioxide or zirconium dioxide and titanium dioxide, and a Group 1 or 2 metal silicate or phosphate salt. The new catalyst is more selective toward the formation of the mixed ketone, as opposed to a symmetrical ketone.
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Ignatchenko Alexey V.
King Michelle Manichanh
Liu Zhufang
Whiddon Calvin W.
Eastman Chemical Company
Graves, Jr. Bernard J.
McGreevey William K.
Nguyen Cam N.
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