![PURIFICATION OF 1,1,1,3,3,3-HEXAFLUOROISOPROPANOL](/ep/2008/02/20/EP1711449A4/abs.jpg.150x150.jpg)
基本信息:
- 专利标题: PURIFICATION OF 1,1,1,3,3,3-HEXAFLUOROISOPROPANOL
- 专利标题(中):纯化的1,1,1,3,3,3六氟异丙醇
- 申请号:EP05706171 申请日:2005-02-04
- 公开(公告)号:EP1711449A4 公开(公告)日:2008-02-20
- 发明人: MAZZELL PAUL JR , SWINSON JOEL , JONES BARRY , GRAHAM DANIEL
- 申请人: HALOCARBON PROD CORP
- 专利权人: HALOCARBON PROD CORP
- 当前专利权人: HALOCARBON PROD CORP
- 优先权: US54181804 2004-02-04
- 主分类号: C07C31/34
- IPC分类号: C07C31/34 ; C07C29/145 ; C07C29/76 ; C07C29/80
摘要:
1,1,1,3,3,3-Hexafluoroisopropanol (HFIP) substantially free of 1,1,1-trifluoroacctone (TFA) can be separated from a mixture containing both compounds by A) catalytic reduction with hydrogen followed by fractional distillation; B) cooling to a temperature at which HFIP freezes and TFA remains liquid; C) forming a high boiling complex comprising HF and TFA followed by fractional distillation; or D) producing HF-free conditions to yield a HFIP/TFA azeotrope followed by fractional distillation. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.