Catalyst – solid sorbent – or support therefor: product or process – Regenerating or rehabilitating catalyst or sorbent – Gas or vapor treating
Patent
1983-06-09
1984-09-11
Konopka, P. E.
Catalyst, solid sorbent, or support therefor: product or process
Regenerating or rehabilitating catalyst or sorbent
Gas or vapor treating
2604653, 560214, 562531, 562532, 562534, 562535, 562599, B01J 2728, C07C 5125, C07C 51377, C07C 57055
Patent
active
044710623
ABSTRACT:
The present invention relates to a method for the reactivation of phosphomolybdic acid based catalysts used for the conversion of saturated and unsaturated aldehydes to acids. The method comprises the step of feeding an oxide of nitrogen over the deactivated catalyst at a temperature of from about 100.degree. C. to about 400.degree. C. The method can be employed in the reactor by terminating the feed of reactant to the reactor, adjusting the reactor temperature as may be necessary to one suitable for reactivation and sweeping the reactor with a gas. Alternatively, the catalyst can be removed from the reactor for reactivation. Reactivated phosphomolybdic acid based catalysts are also disclosed. These catalysts have a ratio of molybdenum to phosphorus of 3:1 to 15:1 and are prepared by the process of feeding an oxide of nitrogen over the catalyst at a temperature of from about 100.degree. C. to about 400.degree. C.
REFERENCES:
patent: 1678627 (1928-07-01), Jaeger
patent: 2963443 (1960-12-01), Nixon
patent: 3326817 (1967-06-01), Callahan et al.
patent: 4020174 (1977-04-01), Partenheimer
patent: 4083805 (1978-04-01), White et al.
patent: 4138366 (1979-02-01), Shaw et al.
patent: 4182907 (1980-01-01), Grasselli et al.
patent: 4303550 (1981-12-01), Callahan et al.
patent: 4307247 (1981-12-01), Shaw et al.
patent: 4319042 (1982-03-01), Khoobiar
patent: 4321160 (1982-03-01), Farrington et al.
Farrington Diane G.
White James F.
Curatalo Joseph G.
Evans Larry W.
Konopka P. E.
The Standard Oil Company
LandOfFree
Method for the reactivation of deactivated phosphomolybdic acid does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for the reactivation of deactivated phosphomolybdic acid , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for the reactivation of deactivated phosphomolybdic acid will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1195160