发明授权
- 专利标题： Recovering anhydrous acrylic acid
- 专利标题（中）： 回收无水丙烯酸
-
申请号： US272551申请日： 1972-07-17
-
公开(公告)号： US3932500A公开(公告)日： 1976-01-13
- 发明人: Gerd Duembgen , Heinz Engelbach , Walter Frey , Richard Krabetz , Ulrich Lebert , Hermann Spitzl , Fritz Thiessen , Carl-Heinz Willersinn
- 申请人： Gerd Duembgen , Heinz Engelbach , Walter Frey , Richard Krabetz , Ulrich Lebert , Hermann Spitzl , Fritz Thiessen , Carl-Heinz Willersinn
- 申请人地址： DT Ludwigshafen (Rhine)
- 专利权人： Badische Anilin- & Soda-Fabrik Aktiengesellschaft
- 当前专利权人： Badische Anilin- & Soda-Fabrik Aktiengesellschaft
- 当前专利权人地址： DT Ludwigshafen (Rhine)
- 优先权： DT2136396 19710721
- 主分类号： C07C51/25
- IPC分类号： C07C51/25 ; C07C51/48 ; C07C57/07 ; C07C53/00 ; C07C55/00 ; C07C57/00 ; C07C59/00
摘要：
Acrylic acid practically devoid of water, acrolein, formaldehyde and acetic acid is obtained at particularly low cost by countercurrent scrubbing and quenching of the reaction gas formed in the catalytic oxidation of propylene and/or acrolein with a high-boiling, extremely hydrophobic solvent followed by processing of the extract.
公开/授权文献
- US5645271A Metal fence post with adjustable rail mounting 公开/授权日：1997-07-08
信息查询
