发明授权
US07329330B2 Method and device for the distillative processing of 1,6-hexanediol, 1,5-pentanediol and caprolactone
有权
1,6-己二醇，1,5-戊二醇和己内酯的蒸馏加工方法和装置
- 专利标题： Method and device for the distillative processing of 1,6-hexanediol, 1,5-pentanediol and caprolactone
- 专利标题（中）： 1,6-己二醇，1,5-戊二醇和己内酯的蒸馏加工方法和装置
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申请号： US10451738申请日： 2002-01-08
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公开(公告)号： US07329330B2公开(公告)日： 2008-02-12
- 发明人: Martin Gall , Gerd Kaibel , Thomas Krug , Harald Rust , Frank Stein
- 申请人： Martin Gall , Gerd Kaibel , Thomas Krug , Harald Rust , Frank Stein
- 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： Novak Druce & Quigg, LLP
- 优先权： DE10100552 20010109
- 国际申请： PCT/EP02/00105 WO 20020108
- 国际公布： WO02/055460 WO 20020718
- 主分类号： B01D3/14
- IPC分类号： B01D3/14 ; B01D3/42 ; C07C29/80
摘要：
A process for working up by distillation the crude products obtained in the process according to DE-A 196 07 954 and containing 1,6-hexanediol (HDO), 1,5-pentanediol (PDO) or caprolactone (CLO) in order to obtain the corresponding pure products, the working-up by distillation being carried out in each case in a dividing wall column (TK) in which a dividing wall (T) is arranged in the longitudinal direction of the column with formation of an upper common column region (1), a lower common column region (6), a feed section (2, 4) having a rectification section (2) and stripping section (4), and a take-off section (3, 5) having a stripping section (3) and rectification section (5), with feeding of the respective crude product HDO, PLO or CLO in the middle region of the feed section (2, 4) and removal of the high boiler fraction (C) from the bottom of the column, of the low boiler fraction (A) via the top of the column and of the medium boiler fraction (B) from the middle region of the take-off section (3, 5), or in thermally coupled columns.