公开(公告)号：JP2004010520A

公开(公告)日：2004-01-15

申请号：JP2002164278

申请日：2002-06-05

Applicant: UBE INDUSTRIES

Inventor： ATAKA KIKUO ,  KAKEYA NOBORU ,  FUJIMURA HITOSHI ,  YAMAMOTO YOSHIFUMI ,  TANAKA MITSUHIRO ,  FUKUDA YUKIMASA

IPC: C07C51/245 ,  C07B61/00 ,  C07C55/14 ,  C07C55/21

Abstract: PROBLEM TO BE SOLVED: To provide a method for producing an aliphatic dicarboxylic acid by oxidizing corresponding cycloalkanone compounds with molecular oxygen in a liquid phase, by which the aliphatic dicarboxylic acid is produced in a high yield in safer handling. SOLUTION: The cycloalkanone compounds are oxidized with molecular oxygen in the presence of a cerium compound and a cobalt compound as catalysts in a liquid phase. Preferably the cycloalkanone compounds are cyclohexanone and cyclododecanone and in the catalytic system, at least one compound of each catalytic component selected from the cerium compound and the cobalt compound is a nitrate. COPYRIGHT: (C)2004,JPO