Purification; Separation; Use of additives (working-up undefined gaseous mixtures obtained by cracking hydrocarbon oils C10G70/00)

Child Classifications

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• C07C 7/005 CPC only CPC only
• C07C 7/04 by distillation IPC+CPC Available in IPC and CPC
• C07C 7/09 by fractional condensation since 1980 IPC+CPC Available in IPC and CPC
• C07C 7/10 by extraction, i.e. purification or separation of liquid hydrocarbons with the aid of liquids IPC+CPC Available in IPC and CPC
• C07C 7/11 by absorption, i.e. purification or separation of gaseous hydrocarbons with the aid of liquids since 1980 IPC+CPC Available in IPC and CPC
• C07C 7/12 by adsorption, i.e. purification or separation of hydrocarbons with the aid of solids, e.g. with ion-exchangers IPC+CPC Available in IPC and CPC
• C07C 7/135 by gas-chromatography since 1980 IPC+CPC Available in IPC and CPC
• C07C 7/14 by crystallisation; Purification or separation of the crystals IPC+CPC Available in IPC and CPC
• C07C 7/144 using membranes, e.g. selective permeation since 1980 IPC+CPC Available in IPC and CPC
• C07C 7/148 by treatment giving rise to a chemical modification of at least one compound since 1980 +4 CPC IPC+CPC Available in IPC and CPC
• C07C 7/20 Use of additives, e.g. for stabilisation since 1980 IPC+CPC Available in IPC and CPC