.~ Fractionally solidifying a constituent and separating the same {8}
537
.~.~ Utilizing a constituent of the original mixture or solution as refrigerant
DEFINITION
Classification: 62/537
(under subclass 532) Processes wherein a solution or mixture of constituents is cooled sufficiently to solidify a constituent which is then removed from the mixture wherein refrigeration of the mixture or solution is accomplished by vaporizing a component of the mixture or solution and without the addition of refrigerant to the mixture.
(1) Note. Refrigeration herein is usually accomplished by creating reduced pressure over the mixture or solution and in absence of contrary disclosure a process wherein a vacuum is drawn over the body of mixture of solution is to be presumed to result in refrigeration of the type included in this
