发明公开
EP2376417A2 VERFAHREN ZUR RÜCKSPALTUNG VON IN EINER FLÜSSIGKEIT F ENTHALTENEN MICHAEL-ADDUKTEN, DIE BEI DER HERSTELLUNG VON ACRYLSÄURE ODER DEREN ESTER GEBILDET WURDEN
有权
用于备份斯普利特所载˚F迈克尔液态法，加合物涉及丙烯酸的生产，取得了酯类化合物
- 专利标题： VERFAHREN ZUR RÜCKSPALTUNG VON IN EINER FLÜSSIGKEIT F ENTHALTENEN MICHAEL-ADDUKTEN, DIE BEI DER HERSTELLUNG VON ACRYLSÄURE ODER DEREN ESTER GEBILDET WURDEN
- 专利标题（英）： Method for cleaving michael adducts that are contained in a fluid f and that were formed in the production of acrylic acid or esters thereof
- 专利标题（中）： 用于备份斯普利特所载˚F迈克尔液态法，加合物涉及丙烯酸的生产，取得了酯类化合物
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申请号： EP09768013.6申请日： 2009-11-30
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公开(公告)号： EP2376417A2公开(公告)日： 2011-10-19
- 发明人: SCHLIEPHAKE, Volker , FRIESE, Thorsten , BOTT, Klaus , BLECHSCHMITT, Michael , BLUM, Till , MÜLLER-ENGEL, Klaus, Joachim
- 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： DE102008054587 20081212; US122154P 20081212
- 国际公布： WO2010066601 20100617
- 主分类号： C07C51/42
- IPC分类号： C07C51/42
摘要：
The invention relates to a method for cleaving Michael adducts that are contained in a fluid F at a weight proportion of ≥ 10 wt % and that were formed in the production of acrylic acid or esters thereof, in a cleaving device, which comprises a pump P and a separation column K having installations that effect separation and a recirculation heat exchanger UW, wherein for the purpose of feeding the cleaving energy, the pump P draws sump fluid from the sump chamber of the separation column K and continuously feeds said sump fluid back into the sump chamber above the level of the sump fluid through the recirculation heat exchanger UW, and wherein the pump P is a radial centrifugal pump having an open impeller.
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