Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Boron or compound containing same
Patent
1992-12-16
1994-06-28
Dees, Carl F.
Catalyst, solid sorbent, or support therefor: product or process
Catalyst or precursor therefor
Boron or compound containing same
502205, 502206, 502207, B01J 2100, B01J 3700
Patent
active
053247027
ABSTRACT:
Compositions comprising certain metal-containing materials distributed interactively on a deboronated HAMS-1B crystalline borosilicate molecular sieve which are useful for catalytically oxidizing or oxidatively dehydrogenating organic compounds such as alkanes, aromatics, and alkyl-substituted aromatics are described. Alkanes are oxidatively dehydrogenated to olefins, and an aromatic compound such as benzene can be oxidized by nitric and/or nitrous oxide to largely phenol or largely nitrobenzene depending upon the oxidation temperature. When the compound is a methylaromatic, oxidation produces an aromatic aldehyde. Alkyl groups larger than methyl oxidatively dehydrogenate to alkenyl groups. The compositions can be used in a process to separate p-xylene from a mixture of its isomers based upon the ability of the compositions, which preferably comprise a iron molybdenum material interactively distributed on a deboronated HAMS-1B crystalline borosilicate molecular sieve, to selectively oxidize the p-xylene to an aldehyde or dialdehyde while not substantially oxidizing the ortho and metaxylene isomers. Such partially oxidized mixtures of p-xylene are useful to make TPAA or as feeds to a water-based, further oxidation to make terephthalic acid. Carbon dioxide used as a carrier gas with a methylaromatic feed to the oxidation catalyst is shown to have a beneficial effect on yield and selectivity.
REFERENCES:
patent: 4268420 (1981-05-01), Klotz
patent: 4451685 (1984-05-01), Nevitt et al.
patent: 4462971 (1984-07-01), Hinnenkamp et al.
patent: 4725570 (1988-02-01), Sikkenga et al.
Donohue John A.
Kleefisch Mark S.
Yoo Jin S.
Amoco Corporation
Dees Carl F.
Nemo Thomas E.
Oliver Wallace L.
LandOfFree
Catalytic oxidation and oxidative dehydrogenation using metal-co does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Catalytic oxidation and oxidative dehydrogenation using metal-co, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Catalytic oxidation and oxidative dehydrogenation using metal-co will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2377501