US PATENT SUBCLASS 134 / 13
.~.~ By crystallizing, precipitating, or eliminating dissolved solids from used agent


Current as of: June, 1999
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134 /   HD   CLEANING AND LIQUID CONTACT WITH SOLIDS

*  DD  PROCESSES {23}
10  DF  .~ Including regeneration, purification, recovery or separation of agent used {3}
13.~.~ By crystallizing, precipitating, or eliminating dissolved solids from used agent


DEFINITION

Classification: 134/13

(under subclass 10) Processes which include any one or any combination of: crystallizing, precipitating, or otherwise removing part or all of dissolved, undesired solid matter from a used agent.

SEE OR SEARCH THIS CLASS, SUBCLASS:

10, for physical separation of solids not in a dissolved state that contaminate the used agent.

12, for such separation involving distilling.

SEE OR SEARCH CLASS

23, Chemistry: Physical Processes, appropriate subclasses, for the separation of an inorganic chemical from a mixture,

and 295+, for miscellaneous processes of crystallizing.

260, Chemistry of Carbon Compounds, appropriate subclasses for the separation of an organic compound from a mixture, and

707, for processes of crystallizing organic compounds.

585, Chemistry of Hydrocarbon Compounds,

812, for a crystallization process to recover a hydrocarbon.