US PATENT SUBCLASS 210 / 642
.~.~ Extracting water from brine utilizing liquid/liquid solvent or colloidal extraction


Current as of: June, 1999
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210 /   HD   LIQUID PURIFICATION OR SEPARATION

600  DF  PROCESSES {14}
634  DF  .~ Liquid/liquid solvent or colloidal extraction or diffusing or passing through septum selective as to material of a component of liquid; such diffusing or passing being effected by other than only an ion exchange or sorption process {11}
642.~.~ Extracting water from brine utilizing liquid/liquid solvent or colloidal extraction


DEFINITION

Classification: 210/642

Extracting water from brine utilizing liquid/liquid solvent or colloidal extraction:

(under subclass 634) Process in which a liquid selectively dissolves water from a salt-water mixture, resulting in (a) a salt-water mixture, more concentrated in salt, and (b) a water-liquid mixture allowing the two mixtures to be separated.

SEE OR SEARCH CLASS

62, Refrigeration,

532+, for a process of desalinating water by freezing.