US PATENT SUBCLASS 585 / 621
.~.~.~.~ Elemental O acceptor

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

500  DF  UNSATURATED COMPOUND SYNTHESIS {14}
601  DF  .~ Diolefin product {4}
616  DF  .~.~ By dehydrogenation {3}
617  DF  .~.~.~ Using nonhydrocarbon acceptor {2}
621.~.~.~.~ Elemental O acceptor {2}
622  DF  .~.~.~.~.~> With P containing extraneous agent {1}
624  DF  .~.~.~.~.~> With metal oxide or hydroxide extraneous agent {2}

DEFINITION

Classification: 585/621

Elemental O acceptor:

(under subclass 617) Subject matter wherein the acceptor is oxygen which enters the process in free or uncombined form.

(1) Note. A process which described as "oxidative dehydrogenation" is presumed to use an elemental oxygen acceptor.