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Publication of BE691321ApublicationCriticalpatent/BE691321A/xx
C07C7/00—Purification; Separation; Use of additives
C07C7/148—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound
C07C7/17—Purification; Separation; Use of additives by treatment giving rise to a chemical modification of at least one compound with acids or sulfur oxides
C—CHEMISTRY; METALLURGY
C07—ORGANIC CHEMISTRY
C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
C07C17/00—Preparation of halogenated hydrocarbons
C07C17/07—Preparation of halogenated hydrocarbons by addition of hydrogen halides
C07C17/08—Preparation of halogenated hydrocarbons by addition of hydrogen halides to unsaturated hydrocarbons