US PATENT SUBCLASS 585 / 639
.~.~ Alcohol, ester, or ether

Current as of: June, 1999
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585 /   HD   CHEMISTRY OF HYDROCARBON COMPOUNDS

500  DF  UNSATURATED COMPOUND SYNTHESIS {14}
638  DF  .~ From nonhydrocarbon feed {2}
639.~.~ Alcohol, ester, or ether {1}
640  DF  .~.~.~> Using metal oxide catalyst

DEFINITION

Classification: 585/639

Alcohol, ester, or ether:

(under subclass 638) Subject matter wherein a nonhydrocarbon feedstock molecule is an alcohol, an ether, or an ester.

(1) Note. An acid extract of an olefin which requires "decomposition" for recovery of the olefin usually is an ester.

SEE OR SEARCH THIS CLASS, SUBCLASS:

311, and 710, for synthesis processes, one step of which may be liberation of an olefin from an ester of a catalytic acid.

858+, for a purification process which may involve liberation of an olefin from its sulfate ester.