公开(公告)号：EP2459618B1

公开(公告)日：2014-04-23

申请号：EP10736725.2

申请日：2010-07-27

申请人： BASF SE

发明人： SCHOPOHL, Matthias ,  OSTROWSKI, Thomas ,  MECKELNBURG, Dirk ,  JOVANOVIC, Renata ,  LÖFFLER, Achim ,  PALLASCH, Hans-Jürgen ,  FRIESE, Thorsten ,  SCHAUß, Eckard ,  SZESCHKUS, Susanne ,  CHILEKAR, Vinit ,  SCHWARZ, Hans Volkmar

IPC分类号： C08G65/30

CPC分类号： C08G65/2696 ,  C08G65/30

公开(公告)号：EP2459618A1

公开(公告)日：2012-06-06

申请号：EP10736725.2

申请日：2010-07-27

申请人： BASF SE

发明人： SCHOPOHL, Matthias ,  OSTROWSKI, Thomas ,  MECKELNBURG, Dirk ,  JOVANOVIC, Renata ,  LÖFFLER, Achim ,  PALLASCH, Hans-Jürgen ,  FRIESE, Thorsten ,  SCHAUß, Eckard ,  SZESCHKUS, Susanne ,  CHILEKAR, Vinit ,  SCHWARZ, Hans Volkmar

IPC分类号： C08G65/30

CPC分类号： C08G65/2696 ,  C08G65/30

摘要： Method for producing polyetherols, comprising the following steps: a) reacting at least one starter compound with at least one alkylene oxide and a catalyst to yield a raw polyetherol, and b) removing low-molecular by-products from the raw polyetherol from step a), characterized in that the crude polyetherol is treated with a stripping gas in a column having internals.