US PATENT SUBCLASS 202 / 219
.~.~.~.~ Molten bath

Current as of: June, 1999
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202 /   HD   DISTILLATION: APPARATUS

81  DF  APPARATUS {4}
*  DD  .~ Types {3}
*  DD  .~.~ Autothermic {5}
217  DF  .~.~.~ Retort {6}
219.~.~.~.~ Molten bath

DEFINITION

Classification: 202/219

The retort is surrounded by or contains a mass of fusible substance through which the heat is conveyed to the retort.

SEE OR SEARCH CLASS

48, Gas: Heating and Illuminating,

92,.

196, Mineral Oils: Apparatus,

118, and 120.

201, Distillation: Processes, Thermolytic,

11, for a thermolytic distillation in which the distilland is heated by a molten metal bath.