公开(公告)号：US20020010359A1

公开(公告)日：2002-01-24

申请号：US09885962

申请日：2001-06-22

Applicant: Kao Corporation

Inventor： Jun Kaita ,  Taku Mimura ,  Noriaki Fukuoka ,  Yasuyuki Hattori

IPC: C07C067/02 ,  C07C067/03

CPC classification number: C11C3/003 ,  B01J27/16 ,  B01J27/1811 ,  B01J27/1853

Abstract: The present invention provides a heterogeneous catalyst which is highly active, excellent in selectivity and free from elution of its catalyst-components during reaction and which has long lifetime. That is, a phosphate of a metal selected from the group consisting of aluminum, gallium and iron is used as the catalyst for transesterification of the present invention.

公开(公告)号：US20020016483A1

公开(公告)日：2002-02-07

申请号：US09863460

申请日：2001-05-24

Applicant: Kao Corporation

Inventor： Takashi Aoki ,  Shinji Kotachi ,  Taku Mimura ,  Junji Koshino

IPC: C07C069/675

CPC classification number: B01J23/80 ,  C07C67/31 ,  C07C69/675

Abstract: The present invention provides a process for producing hydroxycarboxylic acid esters easily, further at a high reaction selectivity, by using an inexpensive catalyst. That is, the present invention provides a process for producing hydroxycarboxylic acid esters, which comprises hydrogenating dicarboxylic acid diesters having 3 to 20 carbon atoms in the dicarboxylic acid moiety in the presence of a copper catalyst comprising 1 to 40% by weight of copper as copper oxides.