公开(公告)号：BR0108651A

公开(公告)日：2002-12-17

申请号：BR0108651

申请日：2001-02-22

Applicant: BASF AG

Inventor： OSTROWSKI THOMAS ,  HARRE KATHRIN ,  GROSCH GEORG HEINRICH ,  PPNER GERD H ,  VOCHT PETER DE ,  LEYS DIRK ,  WINKLER J RGEN ,  BAUER STEPHAN

IPC: C08G65/28 ,  C08G65/26

Abstract: A process for the preparation of polyetherpolyols by reacting diols or polyols with ethylene oxide, propylene oxide, butylene oxide or a mixture thereof in the presence of a multimetal cyanide complex catalyst is proposed, the reaction being carried out in a stirred kettle reactor and the reaction mixture being circulated via an external heat exchanger by means of a pump.