US PATENT SUBCLASS 534 / 887
.~.~ Purification or recovery

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

*  DD  ORGANIC COMPOUNDS (CLASS 532, SUBCLASS 1) {8}
573  DF  .~ Azo {51}
887.~.~ Purification or recovery

DEFINITION

Classification: 534/887

(under subclass 573) Processes wherein the azo compound is separated from impurities or from the reaction mixture.