CPC Subgroup
B01D 3/14 Fractional distillation
Full Title
Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping ( gas chromatography B01D15/08; destructive distillation C10B; preparation of alcoholic beverages by distillation C12H6/02) > Fractional distillation
6 direct subcodes
Child Classifications
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- B01D 3/16 Fractionating columns in which vapour bubbles through liquid (packing elements B01J19/30, B01J19/32)
- B01D 3/26 Fractionating columns in which vapour and liquid flow past each other, or in which the fluid is sprayed into the vapour, or in which a two-phase mixture is passed in one direction
- B01D 3/30 Fractionating columns with movable parts or in which centrifugal movement is caused
- B01D 3/32 Other features of fractionating columns