Regeneration of a titanium-containing molecular sieve

Details Regeneration of a titanium-containing molecular sieve Regeneration of a titanium-containing molecular sieve

1995-05-18

1998-05-19

Caldarola, Glenn A.

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

Regenerating or rehabilitating catalyst or sorbent

Gas or vapor treating

502 56, B01J 2034, B01J 3502, B01J 3812

Patent

active

057535760

ABSTRACT:
A titanium-containing molecular sieve which has been used as an oxidation catalyst is regenerated to provide a level of performance comparable to that of freshly prepared catalyst by heating at less than 400.degree. C. in the presence of molecular oxygen. The same batch of catalyst thus may be used over an extended period of time in a continuous epoxidation process by periodic practice of the aforedescribed reactivation method.

REFERENCES:
patent: 4833260 (1989-05-01), Neri et al.
patent: 5374747 (1994-12-01), Saxton et al.
patent: 5384418 (1995-01-01), Zajacek et al.
patent: 5412122 (1995-05-01), Saxton et al.
"Synthesis of Propylene Oxide from Propylene and Hydrogen Peroxide Catalyzed by Titanium Silicalite", Journal of Catalysis 129, 159-167 (1991), by M.G. Clerici et al.

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