US PATENT SUBCLASS 159 / 49
.~ Film

Current as of: June, 1999
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159 /   HD   CONCENTRATING EVAPORATORS

47.1  DF  PROCESSES {4}
49.~ Film

DEFINITION

Classification: 159/49

(under subclass 47.1) Processes in which the liquid to be concentrated is spread in the form of a film or thin layer for evaporation.

SEE OR SEARCH CLASS

203, Distillation: Processes, Separatory,

72, and 89 for a separatory distillation process in which the distilland is spread on a surface in a thin film.

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