发明公开
EP1926696A1 VERFAHREN ZUR ABTRENNUNG VON POLYMEREN NEBENPRODUKTEN AUS 1,4-BUTINDIOL
有权
VERFAHREN ZUR ABTRENNUNG VON POLYMEREN NEBENPRODUKTEN AUS 1,4-BUTINDOL
- 专利标题: VERFAHREN ZUR ABTRENNUNG VON POLYMEREN NEBENPRODUKTEN AUS 1,4-BUTINDIOL
- 专利标题(英): Method for the separation of polymeric by-products from 1,4-butynediol
- 专利标题(中): VERFAHREN ZUR ABTRENNUNG VON POLYMEREN NEBENPRODUKTEN AUS 1,4-BUTINDOL
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申请号: EP06792973.7申请日: 2006-08-23
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公开(公告)号: EP1926696A1公开(公告)日: 2008-06-04
- 发明人: LORENZ, Rudolf Erich , PINKOS, Rolf , STEINIGER, Michael , SCHÄFER, Gerd
- 申请人: BASF SE
- 申请人地址: 67056 Ludwigshafen DE
- 专利权人: BASF SE
- 当前专利权人: BASF SE
- 当前专利权人地址: 67056 Ludwigshafen DE
- 优先权: DE102005042185 20050906
- 国际公布: WO2007028716 20070315
- 主分类号: C07C29/17
- IPC分类号: C07C29/17 ; C07C29/76 ; C07C31/30 ; C07C33/035
摘要:
The invention relates to a method for purifying 1,4-butynediol, in which 1,4-butynediol is processed in a dynamic mixing device in an inert gas atmosphere at 25 to 150 °C at a velocity gradient exceeding 100,000 sec-1 in the radial play between the rotor and the stator, one waits for the phases to separate at temperatures ranging from 25 to 150 °C, and the bottom phase is eliminated. Also disclosed is a method for hydrogenating 1,4-butynediol into 1,4-butenediol and 1,4-butanediol with the aid of the purified 1,4-butynediol.
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