US PATENT SUBCLASS 585 / 261
.~.~.~ Using catalyst and additional nonmetal material

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

250  DF  ADDING HYDROGEN TO UNSATURATED BOND OF HYDROCARBON, I.E., HYDROGENATION {10}
258  DF  .~ Hydrocarbon is contaminant in desired hydrocarbon {1}
259  DF  .~.~ Hydrogenation of diolefin or triple bond {3}
261.~.~.~ Using catalyst and additional nonmetal material

DEFINITION

Classification: 585/261

Using catalyst and additional nonmetal material:

(under subclass 259) Subject matter where the contaminant is hydrogenated in the presence of a catalyst and at least one additional nonmetal material, e.g., Decalin, etc.