公开(公告)号：DE1493191A1

公开(公告)日：1969-02-20

申请号：DE1493191

申请日：1964-04-28

Applicant: STANDARD OIL CO

Inventor： JOHN ZIMMERSCHIED WILFORD ,  EUGENE HANNEMANN DONALD ,  JUN CARL SERRES

IPC: C07C51/265

公开(公告)号：DE1668699A1

公开(公告)日：1971-09-02

申请号：DE1668699

申请日：1967-09-20

Applicant: STANDARD OIL CO

Inventor： EUGENE HANNEMANN DONALD ,  EMBER GEORGE ,  KARL DARIN JOHN ,  JOHN ZIMMERSCHMIED WILFORD

IPC: C07C51/265 ,  C07C63/02

Abstract: 1,202,710. Trimellitic acid. STANDARD OIL CO. 19 Sept., 1967 [20 Sept., 1966], No. 42673/67. Heading C2C. Trimellitic acid is prepared by oxidizing pseudocumene initially with molecular oxygen in the presence of a side chain initiator or promoter, a heavy metal oxidation catalyst having an oxidation potential at least equal to that of Ce and acetic acid in an oxidation zone under liquid phase conditions until about 2 to 3.2 moles of oxygen per mole of pseudocumene have been consumed and thereafter adding to the oxidation zone a heavy metal oxidation catalyst having an oxidation potential no greater than Mn and continuing the oxidaton until at least 4.5 moles of oxygen per mole of pseudocumene have been consumed. Examples are given which illustrate this process.

公开(公告)号：DE1493192A1

公开(公告)日：1969-02-20

申请号：DE1493192

申请日：1964-04-28

Applicant: STANDARD OIL CO

Inventor： JOHN ZIMMERSCHIED WILFORD ,  EUGENE HANNEMANN DONALD ,  JUN CARL SERRES

IPC: B01J31/04 ,  B01J31/40 ,  C07C51/265