US PATENT SUBCLASS 570 / 213
.~.~ Purification or recovery of 1,2,3,4,5,6 - hexachlorocyclohexane (i.e., benzene hexachloride)

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}
213.~.~ Purification or recovery of 1,2,3,4,5,6 - hexachlorocyclohexane (i.e., benzene hexachloride)

DEFINITION

Classification: 570/213

Purification or recovery of 1,2,3,4,5,6-hexachlorocyclohexane (i.e., benzene hexachloride):

(under subclass 101) Process wherein a 1,2,3,4,5,6-hexachlorocyclohexane is separated from a mixture or in which impurities are separated from said compound.

(1) Note. Many patents in this subclass relate to the separation of the various isomers of this compound.