Compositions – Preservative agents – Anti-oxidants or chemical change inhibitants
Patent
1981-12-02
1983-09-20
Konopka, P. E.
Compositions
Preservative agents
Anti-oxidants or chemical change inhibitants
252415, 252441, 252442, 252463, 585669, B01J 2708, B01J 2712, B01J 2102, C07C 1102
Patent
active
044055005
ABSTRACT:
n-Alkenes can be converted catalytically into isoalkenes, when a mixture containing at least one n-alkene and hydrogen is brought into contact at a temperature of 400.degree. to 600.degree. C. and a residence time of 0.2 to 20 seconds with an Al.sub.2 O.sub.3 or SiO.sub.2 catalyst which is specifically activated and is promoted with halogen compounds of elements of the third to fifth main groups and second to eighth sub-groups of the periodic system and/or hydrohalic acids. The specific activation comprises calcining, before the promotion process, an aluminum hydroxide or aluminum oxide hydrate or a silica gel having a content of volatile ammonium salts to give Al.sub.2 O.sub.3 or SiO.sub.2, with expulsion of these volatile ammonium salts. For the conversion of the n-alkenes, the catalyst can be employed in a fixed or a mobilized catalyst bed. In cases where the catalyst is used in a mobilized catalyst bed it can be passed, by continuous or discontinuous removal of a portion of it, to a separate regeneration process and following regeneration can be reintroduced into the mobilized catalyst bed.
REFERENCES:
patent: 2381562 (1945-08-01), Stewart
patent: 3114785 (1963-12-01), Hervert et al.
patent: 3663453 (1972-05-01), Myers
patent: 3919117 (1975-11-01), Michalko
patent: 3919340 (1975-11-01), Hayes
patent: 3975299 (1976-08-01), Crathorne et al.
patent: 4014948 (1977-03-01), Myers
patent: 4216122 (1980-08-01), Michalko
patent: 4250058 (1981-02-01), Michalko
Revised Form of Mendeleev's Periodic Chart.
Honig Helmar
Horlitz Werner
Muller Hans J.
Ec Erdolchemie GmbH
Konopka P. E.
LandOfFree
Halogen compound promoted Al.sub.2 O.sub.3 and/or SiO.sub.2 for does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Halogen compound promoted Al.sub.2 O.sub.3 and/or SiO.sub.2 for , we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Halogen compound promoted Al.sub.2 O.sub.3 and/or SiO.sub.2 for will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-586918