发明授权
US07605292B2 Method for the separation of polymeric by-products from 1,4-butynediol
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从1,4-丁炔二醇分离聚合副产物的方法
- 专利标题： Method for the separation of polymeric by-products from 1,4-butynediol
- 专利标题（中）： 从1,4-丁炔二醇分离聚合副产物的方法
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申请号： US12351253申请日： 2009-01-09
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公开(公告)号： US07605292B2公开(公告)日： 2009-10-20
- 发明人: Rudolf Erich Lorenz , Rolf Pinkos , Michael Steiniger , Gerd Schaefer , Thomas Danner
- 申请人： Rudolf Erich Lorenz , Rolf Pinkos , Michael Steiniger , Gerd Schaefer , Thomas Danner
- 申请人地址： DE Ludwigshafen
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： DE Ludwigshafen
- 代理机构： Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- 优先权： DE102005042184 20050906
- 主分类号： C07C29/17
- IPC分类号： C07C29/17
摘要：
The present invention relates to a process for purifying 1,4-butynediol, which comprises compressing 1,4-butynediol to from 50 to 1500 bar, depressurizing it, waiting for phase separation to occur after depressurization and separating off the bottom phase, and a process for the hydrogenation of 1,4-butynediol to 1,4-butenediol and 1,4-butanediol using the purified 1,4-butynediol.
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