Chemistry of hydrocarbon compounds – Unsaturated compound synthesis – From nonhydrocarbon feed
Reexamination Certificate
2006-10-18
2008-10-28
Caldarola, Glenn (Department: 1797)
Chemistry of hydrocarbon compounds
Unsaturated compound synthesis
From nonhydrocarbon feed
C585S639000, C502S355000
Reexamination Certificate
active
07442845
ABSTRACT:
Ethers are cracked to olefins using a gamma-alumina catalyst in the presence of ammonia. The use of ammonia improves the selectivity to linear alpha olefins in comparison to cracking reactions in the absence of ammonia. The use of ammonia is convenient in comparison to known processes which employ alumina which as been treated with an amine. A preferred process produces octene-1 from 1-methoxyoctane.
REFERENCES:
patent: 2003/0065233 (2003-04-01), Fuji et al.
patent: 39 15 493 (1989-05-01), None
patent: WO 2004/052809 (2004-06-01), None
J. Am. Chem. Society, “Dehydration of Alcohols over Alumina Modified by Ammonia”, 82(9), pp. 2401-2402, 1960.
Gao Xiaoliang
Johnston Stacy David Ross
Krzywicki Andrzej
Bullock In Suk
Caldarola Glenn
Johnson Kenneth H.
Nova Chemicals (International) S.A.
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