Patent · US Expired

Process for the preparation of alkyl-halides

US5138110A · kind A · utility

16Cited by
0References
13Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 13, 1991
Grant dateAug 11, 1992
Priority date—
Expiry dateAug 13, 2011

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C17/16
  • WIPO fieldOrganic fine chemistry
  • WIPO sectorChemistry

Abstract

A process for preparing lower alkyl-halides from the reaction of HX and the corresponding lower alcohol, wherein X represents a halogen atom, comprises continuously feeding HX and a lower alcohol to a reactor maintaining the instantaneous molar ratio of HX to the alcohol greater than 3, and continuously distilling off lower alkyl-halide and water from the reactor, continuously separating the lower alkyl-halide and water and recycling part of the said water to the distillation column to abate HX distillation from the reactor. High acid concentration and temperatures are maintained to obtain high yields and rapid conversion of alkanols.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.