Title:
改良された触媒およびポリテトラヒドロフランの製法
Document Type and Number:
Japanese Patent JP2004502807
Kind Code:
A
Abstract:
The invention relates to a catalyst which contains a catalytically active quantity of at least one oxygen-containing molybdenum and/or wolfram compound on an oxidic support material and which has been calcinated at temperatures of 400 to 900° C. after the precursor compound of the catalytically active compounds have been applied to the support material or to a support material precursor. The transport pores for this catalyst each have a diameter of >25 nm and a volume of at least 50 mm<3>/g. The catalyst contains x mumol (wolfram and/or molybdenum)/m<2 >molybdenum and/or wolfram, with 10.1/g. Catalysts of this type are characterized by an acidity of at least 70 mumol/g at pKs<-3 in the dry state and are therfore very active. The invention also relates to a method for producing a catalyst of this type and to the preferred use thereof.
Inventors:
Ulrich Steinbrenner
Thomas Nalves Hoover
Martin Haupner
Christoph Siegwald
Gerd Linden
Gerhard Cox
Rolf-Hartmut Fisher
Michael hesse
Gerd Bonner
Hartmut Hypst
Eckhardt Schwab
Andreas Tenten
Thomas Nalves Hoover
Martin Haupner
Christoph Siegwald
Gerd Linden
Gerhard Cox
Rolf-Hartmut Fisher
Michael hesse
Gerd Bonner
Hartmut Hypst
Eckhardt Schwab
Andreas Tenten
Application Number:
JP2002507920A
Publication Date:
January 29, 2004
Filing Date:
July 02, 2001
Export Citation:
Assignee:
BASF Aktiengesellschaft
International Classes:
C08G65/10; B01J23/28; B01J23/30; B01J27/188; B01J35/00; B01J35/10; B01J37/00; C08G65/20; C08G65/26; B01J21/06; (IPC1-7): C08G65/10
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel