US PATENT SUBCLASS 570 / 238
.~.~.~ Purification or recovery


Current as of: June, 1999
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570 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {1}
101  DF  .~ HALOGEN CONTAINING {21}
216  DF  .~.~ Processes of preparing, purifying, or recovering unsaturated compound {12}
238.~.~.~ Purification or recovery {1}
239  DF  .~.~.~.~> Including contact with solid agent


DEFINITION

Classification: 570/238

Purification or recovery:

(under subclass 216) Process wherein a compound containing carbon to carbon unsaturated is separated from a mixture or in which impurities are separated from said compound.