公开(公告)号：DE19649803A1

公开(公告)日：1998-07-23

申请号：DE19649803

申请日：1996-12-02

Applicant: BASF AG

Inventor： ELLER KARSTEN DR ,  CHRISTOPH SIGWART DR ,  BECKER RAINER DR ,  PLITZKO KLAUS-DIETER DR ,  FISCHER ROLF DR ,  STEIN FRANK DR ,  MUELLER ULRICH DR ,  HESSE MICHAEL DR

IPC: B01J23/24 ,  C08G65/10 ,  C08G65/20 ,  C08G65/26 ,  C08G65/28 ,  B01J23/30 ,  B01J23/34 ,  B01J23/888 ,  B01J23/652

Abstract: Polytetrahydrofuran, tetrahydrofuran copolymers, diesters or monoesters of these polymers are prepared by polymerizing tetrahydrofuran in the presence of at least one telogen and/or comonomer on a heterogeneous carrier catalyst which contains on an oxidic carrier material as active mass a catalytically active amount of at least one oxygenous molybdenum and/or tungsten compound and, when the precursor compounds of the active mass have been applied to the carrier material precursor, has been calcined at temperatures of between 500 DEG C and 1000 DEG C. The catalyst used contains a promotor which comprises at least one element or a compound of an element of the 2nd, 3rd including the lanthanides, 5th, 6th, 7th, 8th or 14th group of the periodic system of elements.