Title:
ALKOXYLATION CATALYST, PREPARATION THEREOF AND PRODUCTION OF ALKYLENE OXIDE ADDUCT USING SAME
Document Type and Number:
Japanese Patent JP3312883
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a solid catalyst capable of producing alkylene adducts having a narrow distribution of an addition mol while inhibiting the generation of a polyalkylene glycol having a molecular weight as high as scores of thousands as a by-product.
SOLUTION: As an alkoxylation catalyst, use is made of a metal oxide which contains magnesium, aluminum and, as a third component, at least one metal which is selected from Groups 6A, 7A and 8 of the Periodical Table. The third component reacts with aluminum to form a spinel type oxide or the like (e.g. MnAl2O4, when Mn is the third component.), which results in such a modification of the structure of the active center of the catalysts that allows the inhibition of the by-production of a high molecular weight poly alkylene glycol.
Inventors:
Takahiro Okamoto
Shingo Uemura
Itsuo Hama
Shingo Uemura
Itsuo Hama
Application Number:
JP16335399A
Publication Date:
August 12, 2002
Filing Date:
June 10, 1999
Export Citation:
Assignee:
Lion Corporation
International Classes:
C07D303/04; B01J23/24; B01J23/26; B01J23/32; B01J23/34; B01J23/46; B01J23/64; B01J23/74; B01J23/745; B01J23/78; B01J23/84; B01J23/89; C07B61/00; C07C41/03; C07C67/03; (IPC1-7): B01J23/26; B01J23/34; B01J23/78; C07B61/00; C07C41/03; C07C67/03
Attorney, Agent or Firm:
Hiroyuki Ikeuchi (4 outside)