US PATENT SUBCLASS 570 / 263
.~.~.~ Liquid-liquid extraction

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}
262  DF  .~.~ Purification or recovery {1}
263.~.~.~ Liquid-liquid extraction

DEFINITION

Classification: 570/263

Liquid-liquid extraction:

(under subclass 262) Process wherein a substance is transferred from one liquid phase to another liquid phase essentially insoluble in the first liquid phase.