发明授权
US07226527B2 Method for recovering crude 1,3-butadiene by extractive distillation from a C4 cut
有权
通过萃取蒸馏从C4馏分回收粗1,3-丁二烯的方法
- 专利标题: Method for recovering crude 1,3-butadiene by extractive distillation from a C4 cut
- 专利标题(中): 通过萃取蒸馏从C4馏分回收粗1,3-丁二烯的方法
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申请号: US10467626申请日: 2002-02-06
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公开(公告)号: US07226527B2公开(公告)日: 2007-06-05
- 发明人: Gerd Bohner , Klaus Kindler , Melanie Pahl , Gerd Kaibel
- 申请人: Gerd Bohner , Klaus Kindler , Melanie Pahl , Gerd Kaibel
- 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, P.C.
- 优先权: DE10105660 20010208
- 国际申请: PCT/EP02/01219 WO 20020206
- 国际公布: WO02/062733 WO 20020815
- 主分类号: B01D3/40
- IPC分类号: B01D3/40 ; B01D3/42 ; C07C7/08 ; C07C11/167
摘要:
A process for recovering crude 1,3-butadiene from a C4 fraction by extractive distillation using a selective solvent in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column to form a first subregion (A), a second subregion (B) and a lower common column region (C) and which is preceded by an extractive scrubbing column (K) is proposed.
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