Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Gas or vapor treating
Patent
1996-12-20
1998-08-25
Lewis, Michael L.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Gas or vapor treating
502 56, B01J 2034, B01J 3802, B01J 3812
Patent
active
057983135
ABSTRACT:
The activity of titanium-containing heterogeneous catalysts such as titania-on-silica which have been used to catalyze olefin epoxidation is effectively restored by heating in the presence of oxygen at a temperature of 700.degree. C. or greater. Epoxide selectivity is enhanced by treatment of the heated catalyst with a silylating agent, even where the used catalyst had been silylated when initially prepared.
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Carroll Kevin M.
Han Yuan-Zhang
Morales Edrick
Arco Chemical Technology L.P.
Ghyka Alexander G.
Harper Stephen D.
Lewis Michael L.
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