Method of preparing catalyst support from a waste catalyst

Details Method of preparing catalyst support from a waste catalyst Method of preparing catalyst support from a waste catalyst

2005-12-21

2010-10-12

Nguyen, Cam N (Department: 1793)

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

Catalyst or precursor therefor

Metal, metal oxide or metal hydroxide

C502S020000, C502S022000, C502S056000, C502S240000, C502S326000, C502S332000, C502S333000, C502S334000, C502S335000, C502S337000, C502S338000, C502S339000, C502S349000, C502S350000, C502S355000, C502S415000, C502S439000

Reexamination Certificate

active

07811967

ABSTRACT:
A method of preparing, preferably recycling, a catalyst support material is disclosed and is particularly applicable to recycling a titania support. The invention includes crushing the used catalyst support that is obtained by leaching catalytic components from a used supported catalyst and preferably combining it with new catalyst support in order to provide the required average particle size and ratio of crystal phases. The invention has a number of benefits including making use of used catalyst support materials which have been conventionally disposed of and also providing a method to more efficiently recycle the active component. Where the support is recycled for a similar application, less promoter may be required.

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