US PATENT SUBCLASS 585 / 642
.~.~.~ Using acid, metal oxide, or salt catalyst

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}
641  DF  .~.~ Halogen-containing {1}
642.~.~.~ Using acid, metal oxide, or salt catalyst

DEFINITION

Classification: 585/642

Using acid, metal oxide, or salt catalyst:

(under subclass 641) Subject matter wherein a catalyst is used which contains acid, metal oxide, or a metal salt.