Title:
PROCESS FOR THE REMOVAL OF HALOALKYNE IMPURITIES FROM (HYDRO)HALOCARBON COMPOSITIONS
Document Type and Number:
WIPO Patent Application WO/2018/134607
Kind Code:
A8
Abstract:
The invention relates to a process comprising contacting a composition comprising a (hydro)halocarbon and a compound of formula Rf-C=CX with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of Rf-C=CX, wherein Rf is a perfluorinated alkyl group and X is H, F, CI, Br, or I. The invention further relates to process for preparing a (hydro)halocarbon comprising (i) converting a starting material, optionally in the presence of HF and/or a catalyst, to a composition comprising the (hydro)halocarbon and a compound of formula Rf-C≡CX, wherein Rf is a perfluorinated alkyl group and X is H, F, CI, Br, or I; (ii) contacting the composition with a basic solution comprising an hydroxide, an alkoxide and/or an amide to reduce the concentration of the compound of formula Rf-C≡CX; and (iii) recovering the (hydro)halocarbon.
Inventors:
SHARRATT ANDREW PAUL (GB)
Application Number:
PCT/GB2018/050156
Publication Date:
February 28, 2019
Filing Date:
January 19, 2018
Export Citation:
Assignee:
MEXICHEM FLUOR SA DE CV (MX)
MEXICHEM UK LTD (GB)
MEXICHEM UK LTD (GB)
International Classes:
C07C17/395; C07C21/18
Attorney, Agent or Firm:
PUGH, Robert Ian (GB)
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