US PATENT SUBCLASS 208 / 32
.~.~.~ Sweating

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

24  DF  PARAFFIN WAX; TREATMENT OR RECOVERY {4}
28  DF  .~ Separation of paraffin from oil (e.g., dewaxing) {4}
30  DF  .~.~ Separation of residual oil from wax (i.e., deoiling) {2}
32.~.~.~ Sweating

DEFINITION

Classification: 208/32

(under subclass 30) Processes wherein paraffin wax containing residual oil is cooled and then slowly heated to release the lower melting point oils and other components.