Fractionating columns in which vapour bubbles through liquid (packing elements B01J19/30, B01J19/32)

Introduced: September 1968

Title

Titles differ between systems:

IPC: Fractionating columns in which vapour bubbles through liquid

CPC: Fractionating columns in which vapour bubbles through liquid (packing elements B01J19/30, B01J19/32)

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 > Fractionating columns in which vapour bubbles through liquid

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 > Fractionating columns in which vapour bubbles through liquid (packing elements B01J19/30, B01J19/32)

Of 5 combined children, 3 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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B01D 3/163 CPC only CPC only
B01D 3/166 CPC only CPC only
B01D 3/18 with horizontal bubble plates IPC+CPC Available in IPC and CPC
B01D 3/22 with horizontal sieve plates or grids; Construction of sieve plates or grids +1 CPC IPC+CPC Available in IPC and CPC
B01D 3/24 with sloping plates or elements mounted stepwise IPC+CPC Available in IPC and CPC