US PATENT SUBCLASS 585 / 433
.~.~ Using H acceptor or Cr-, Mo-, or W-containing catalyst


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

400  DF  AROMATIC COMPOUND SYNTHESIS {15}
430  DF  .~ From alicyclic {3}
433.~.~ Using H acceptor or Cr-, Mo-, or W-containing catalyst


DEFINITION

Classification: 585/433

Using H acceptor or Cr-, Mo-, or W- containing catalyst:

(under subclass 430) Subject matter wherein a material is employed which forms a compound with the hydrogen removed from the feedstock or which contains, chromium, molybdenum, or tungsten in free or combined form.

(1) Note. The hydrogen acceptor may be an element of a compound, the compound being a hydrocarbon or a nonhydrocarbon.

SEE OR SEARCH THIS CLASS, SUBCLASS:

257, for a hydrogen-exchange disproportionation process in which the hydrocarbon which becomes more saturated is a desired product of the process.

380, 442, 442, 617+, and 654+, for other dehydrogenation processes which use a hydrogen acceptor.

403, for aromatic manufacture where the hydrogen acceptor is embodied in the apparatus used.

900, for aromatic manufacture where a nonhydrocarbon acceptor is recycled, e.g., after rehabilitation.