US PATENT SUBCLASS 208 / 368
.~.~ Condensatin by direct heat exchange

Current as of: June, 1999
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208 /   HD   MINERAL OILS: PROCESSES AND PRODUCTS

308  DF  FRACTIONATION {5}
347  DF  .~ Distillation {12}
368.~.~ Condensatin by direct heat exchange

DEFINITION

Classification: 208/368

(under subclass 347) Processes wherein the volatiles are condensed by direct heat exchange with a coolant (there being direct vapor or gas-liquid contact).

(1) Note. Water or mineral oil condensate may be coolants used to condense volatiles.