CPC Main Group
F25J 3/00 Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification
3 direct subcodes
Child Classifications
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- F25J 3/02 by rectification, i.e. by continuous interchange of heat and material between a vapour stream and a liquid stream (F25J3/08 takes precedence )
- F25J 3/06 by partial condensation (F25J3/08 takes precedence; by rectification F25J3/02 )
- F25J 3/08 Separating gaseous impurities from gases or gaseous mixtures (cold traps B01D8/00)