公开(公告)号：EP1035103A3

公开(公告)日：2001-01-17

申请号：EP00301333.1

申请日：2000-02-21

申请人： ROHM AND HAAS COMPANY

发明人： Chapman, Josefina Tseng ,  Day, James Clarence, English Village Apts, Bldg. 5 ,  Ebert, Donald Alan ,  Kaminski, Thomas Albert ,  Mason, Robert Michael ,  Tsay, Chorng-Shyuan

IPC分类号： C07C57/04 ,  C07C51/21 ,  C07C51/46

CPC分类号： C07C51/48 ,  C07C51/44 ,  C07C51/46 ,  C07C51/50 ,  C07C57/04

摘要： This invention relates to a process for preparing acrylic acid which utilizes an aqueous stream which includes recycled wastewater, at least part of which is stripped of undesirable components in a stripping column prior to being recycled to an acrylic acid absorber.