US PATENT SUBCLASS 23 / 296
.~.~ Selective

Current as of: June, 1999
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23 /   HD   CHEMISTRY: PHYSICAL PROCESSES

293 R  DF  PHYSICAL PROCESSES {7}
295 R  DF  .~ Crystallization {8}
296.~.~ Selective {2}
297  DF  .~.~.~> With extraction
298  DF  .~.~.~> From natural sources

DEFINITION

Classification: 23/296

(under subclass 295) Processes wherein preferential crystallization is carried out in a system containing two or more normally solid crystallizable constituents.