Fractional distillation

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Distillation or related exchange processes in which liquids are contacted with gaseous media, e.g. stripping > Fractional distillation

CPC:

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

Of 6 combined children, 4 exist in both systems.

2 codes are CPC-only extensions.

2 shared codes have differing titles between IPC and CPC.

Child Classifications

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B01D 3/141 CPC only CPC only
B01D 3/143 +3 CPC CPC only CPC only
B01D 3/16 Fractionating columns in which vapour bubbles through liquid (packing elements B01J19/30, B01J19/32) +2 CPC IPC+CPC Available in IPC and CPC
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 IPC+CPC Available in IPC and CPC
B01D 3/30 Fractionating columns with movable parts or in which centrifugal movement is caused IPC+CPC Available in IPC and CPC
B01D 3/32 Other features of fractionating columns +2 CPC IPC+CPC Available in IPC and CPC