Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Metal – metal oxide or metal hydroxide
Patent
1998-03-10
2000-07-04
Wood, Elizabeth D
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Metal, metal oxide or metal hydroxide
502208, 502224, 502226, 502227, 502228, 502231, 502341, 502344, 502347, 502348, B01J 2350, B01J 2718, B01J 27135
Patent
active
060838701
ABSTRACT:
Propylene is oxidized to propylene oxide in the vapor phase using an oxygen-containing gas and a supported silver catalyst comprising silver and a support comprised in whole or in substantial part of certain alkaline earth metal compounds. The alkaline earth metal compound may, for example, be a calcium compound such as calcium titanate, tribasic calcium phosphate, calcium molybdate, or calcium fluoride, a magnesium compound such as magnesium aluminate, or a strontium compound such as strontium titanate. Such supports provide significantly higher selectivity to the desired epoxide than would be expected from the performance of related materials. Propylene oxide selectivity may be further enhanced through the introduction of nitrogen oxide species such as NO, alkyl halides such as ethyl chloride, and carbon dioxide into the oxygen-containing gas.
REFERENCES:
patent: 4410715 (1983-10-01), McMullin et al.
patent: 5145824 (1992-09-01), Buffum et al.
patent: 5502020 (1996-03-01), Iwakura et al.
patent: 5504053 (1996-04-01), Chou et al.
patent: 5686380 (1997-11-01), Pitchai et al.
Gaffney Anne M.
Kahn Andrew P.
Pitchai Rangasamy
Arco Chemical Technology L.P.
Harper Stephen D.
Long William C.
Wood Elizabeth D
LandOfFree
Alkaline earth metal compound-supported silver catalysts does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Alkaline earth metal compound-supported silver catalysts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Alkaline earth metal compound-supported silver catalysts will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1486301