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,...
Patent
1996-01-02
1999-05-04
Lewis, Michael
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,...
502 27, 502 29, B01J 2034
Patent
active
059003839
ABSTRACT:
A process for increasing the activity of a zeolite-containing particulate solid containing contaminants which block the pores of the zeolite and adversely affect the activity thereof wherein the contaminated zeolitic material is slurried with a liquid containing an acid, detergent or surfactant, the slurry is agitated to liberate the pore-blocking contaminants from the zeolite pores so that they are suspended in the liquid, a portion of the liquid is withdrawn from the slurry and filtered to remove the suspended contaminants, the resulting liquid is returned to the slurry, and the treated zeolite-containing particulate solid is liquid from the solution and recovered.
REFERENCES:
patent: 3647718 (1972-03-01), Haden, Jr. et al.
patent: 4163709 (1979-08-01), Burk et al.
patent: 4826793 (1989-05-01), Velten et al.
patent: 4985136 (1991-01-01), Bartholic
Bartholic David B.
Davis Robert E.
Ghyka Alexander G.
Lewis Michael
New Life Catalyst, Inc.
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