公开(公告)号：US3497552A

公开(公告)日：1970-02-24

申请号：US3497552D

申请日：1966-07-18

Applicant: STANDARD OIL CO

Inventor： OLSEN GEORGE P

IPC: B01D9/00 ,  C07C51/43 ,  C07C51/42 ,  C07C63/26

CPC classification number: B01D9/0009 ,  B01D9/0036 ,  C07C51/43 ,  C07C63/26

公开(公告)号：US3639465A

公开(公告)日：1972-02-01

申请号：US3639465D

申请日：1968-06-18

Applicant: STANDARD OIL CO

Inventor： OLSEN GEORGE P ,  TOWLE PHILIP H ,  BALDWIN RICHARD H

IPC: C07C51/487 ,  C07C51/42

CPC classification number: C07C51/487

Abstract: USE OF PREHUMIDIFIED HYDROGEN-CONTAINING GAS FOR PURIFICATION OF AROMATIC POLUCARBOXYLIC ACIDS CONTAMINATED WITH REDUCIBLE IMPURITIES INCLUDING ALKEHYDIC AROMATIC ACIDS IN PROCESSES INCLUDING THE STEP OF CONTACTING AQUEOUS SOLUTION SUBSTANTIALLY SATURATED WITH IMPURE AROMATIC POLYCARBOXYLIC ACID AND HYDROGEN WITH NOBLE METAL-CONTAINING CATALYST BY PERCOLATION OF THE SOLUTION THROUGH A BED OF THE CATALYST.

公开(公告)号：US3456001A

公开(公告)日：1969-07-15

申请号：US3456001D

申请日：1967-05-31

Applicant: STANDARD OIL CO

Inventor： OLSEN GEORGE P

IPC: C07C51/487 ,  C07C51/42

CPC classification number: C07C51/487

公开(公告)号：US3452088A

公开(公告)日：1969-06-24

申请号：US3452088D

申请日：1966-07-11

Applicant: STANDARD OIL CO

Inventor： OLSEN GEORGE P ,  TOWLE PHILIP H ,  BALDWIN RICHARD H

IPC: C07C51/43 ,  C07C51/487 ,  C07C63/26 ,  B01D9/02

CPC classification number: C07C51/43 ,  C07C51/487 ,  C07C63/26

公开(公告)号：US3265729A

公开(公告)日：1966-08-09

申请号：US26918263

申请日：1963-03-29

Applicant: STANDARD OIL CO

Inventor： OLSEN GEORGE P ,  MEYER DELBERT H

IPC: C07C51/487

CPC classification number: C07C51/487