发明申请
- 专利标题： Method for continuously operated pure distillation of oxirane, especially propylene oxide
- 专利标题（中）： 环氧乙烷，特别是环氧丙烷的连续运行纯蒸馏方法
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申请号： US10517368申请日： 2003-07-23
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公开(公告)号： US20050211541A1公开(公告)日： 2005-09-29
- 发明人: Peter Bassler , Hans-Georg Gobbel , Joaquim Teles , Peter Rudolf
- 申请人： Peter Bassler , Hans-Georg Gobbel , Joaquim Teles , Peter Rudolf
- 申请人地址： DE Ludwigshafen 67056
- 专利权人： BASF Aktiengesellschaft
- 当前专利权人： BASF Aktiengesellschaft
- 当前专利权人地址： DE Ludwigshafen 67056
- 优先权： DE10233387.4 20020723
- 国际申请： PCT/EP03/08043 WO 20030723
- 主分类号： B01D3/14
- IPC分类号： B01D3/14 ; B01D3/42 ; C07D301/32 ; B01D3/34
摘要：
The invention relates to a continuously operated process for the purification by distillation of the oxirane formed in the oxirane synthesis by reaction of a hydroperoxide with an organic compound, wherein the crude oxirane is separated in a dividing wall column into low-, intermediate- and high-boiling fractions and the oxirane is taken off as intermediate boiler at the side offtake in a concentration of at least 99.9%.
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