US PATENT SUBCLASS 568 / 750
.~.~.~.~.~.~ From mixture of phenols

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

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {4}
300  DF  .~ OXYGEN CONTAINING (E.G., PERCHLORYLBENZENE, ETC.) {11}
700  DF  .~.~ Hydroxy containing (H of -OH may be replaced by a Group IA or IIA light metal) {10}
715  DF  .~.~.~ Benzene ring containing {8}
716  DF  .~.~.~.~ Phenols (H of -OH may be replaced by a Group IA or IIA light metal) {14}
749  DF  .~.~.~.~.~ Purification or recovery {10}
750.~.~.~.~.~.~ From mixture of phenols {1}
751  DF  .~.~.~.~.~.~.~> Plural phenols recovered separately {1}

DEFINITION

Classification: 568/750

From mixture of phenols:

(under subclass 749) Processes wherein the phenols are separated from a mixture of two or more phenols.