.~.~ Including preliminary conversion to liquid state
DEFINITION
Classification: 210/773
Including preliminary conversion to liquid state:
(under subclass 767) Process including treating a normally solid mixture to convert one constituent thereof to a liquid, solution or liquid-solid suspension and then separating the resulting liquid or liquid mixture.
SEE OR SEARCH CLASS
23, Chemistry: Physical Processes,
295+, for crystallization processes involving purification.
62, Refrigeration,
532+, and 123+ for separating a constituent from a liquid mixture by refrigeration.
126, Stoves and Furnaces,
343.5, for melting furnaces. 554, Organic Compounds,
8+, for processes of recovery or extraction from residues or organic material; subclasses 175+ for processes of purification of fats, oils, and waxes by physical treatment only; and subclass 707 for purification involving crystallization.
