Catalyst support material and use thereof

Details Catalyst support material and use thereof Catalyst support material and use thereof

2005-03-01

2005-03-01

Silverman, Stanley S. (Department: 1754)

Catalyst, solid sorbent, or support therefor: product or process

Regenerating or rehabilitating catalyst or sorbent

Treating with a liquid or treating in a liquid phase,...

C502S027000, C502S038000

Reexamination Certificate

active

06861383

ABSTRACT:
A process for the preparation of a catalyst support material involving the steps of: (a) subjecting a used titania-on-silica catalyst to a decoking treatment, (b) washing the decoked catalyst with a washing liquid selected from an aqueous solution of a mineral acid, an aqueous solution of an ammonium salt and combinations thereof, and (c) drying and calcining the washed and decoked catalyst to yield the catalyst support material. The support material thus obtained is suitably used as support material for titania in a heterogeneous catalyst for the epoxidation of olefins into alkylene oxides.

REFERENCES:
patent: 5798313 (1998-08-01), Carroll et al.
patent: 5916835 (1999-06-01), Carroll et al.
patent: 5977009 (1999-11-01), Faraj
patent: 0 666 107 (1995-08-01), None
patent: 9828072 (1998-07-01), None
patent: 9901445 (1999-01-01), None
patent: 9949972 (1999-10-01), None

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