US PATENT SUBCLASS 585 / 628
.~.~.~.~ Moving catalyst or plural stage

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}
627  DF  .~.~.~ Using extraneous nonhydrocarbon agent, e.g., catalyst, etc. {3}
628.~.~.~.~ Moving catalyst or plural stage

DEFINITION

Classification: 585/628

Moving catalyst or plural stage:

(under subclass 627) Subject matter wherein the effluent from one dehydrogenation procedure is sent to another, different dehydrogenation procedure or in which a solid material

(including fluent solids) is specified as moving during the process, that is, moving within, or into, or out of the reactor.

SEE OR SEARCH THIS CLASS, SUBCLASS:

330, for a process in which the effluent from a dehydrogenation step is sent to a polymerization step.