Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Reexamination Certificate
2007-09-11
2009-06-30
Gonzalez, Porfirio Nazario (Department: 1621)
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
C568S579000, C203S063000, C203S056000
Reexamination Certificate
active
07553995
ABSTRACT:
A process for the production of tertiary ethers, including: feeding a hydrocarbon stream comprising isoolefins and propionitrile to a distillation column reactor system containing at least one etherification reaction zone; feeding a C2to C6monoalcohol or mixture thereof to the distillation column reactor; concurrently in the distillation column reactor system: reacting a portion of the isoolefins with a portion of the alcohols to form a tertiary ether; and separating the tertiary ether from unreacted isoolefins; withdrawing the tertiary ether and propionitrile from the distillation column reactor system as a bottoms; withdrawing the unreacted isoolefins from the distillation column reactor system as an overheads; and operating the distillation column reactor system such that the etherification reaction zone is substantially free of propionitrile.
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Kiviranta-Paakkonen, et al., Dehydration of Alcohol in Etherification of Isoamylened with methanol and Ethanol, 1998, Ind. Eng. Chem. Res., vol. 37, pp. 18-24.
Boyer Christopher C.
Groten Willibrord A.
Loescher Mitchell E.
Maraschino Mario J.
Rock Kerry L.
Catalytic Distillation Technologies
Cutliff Yate K
Gonzalez Porfirio Nazario
Osha • Liang LLP
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