Title:
芳香族酸の製造に際しての共沸蒸留による酢酸の脱水
Document Type and Number:
Japanese Patent JP3869001
Kind Code:
B2
Abstract:
PCT No. PCT/GB95/01933 Sec. 371 Date Feb. 5, 1997 Sec. 102(e) Date Feb. 5, 1997 PCT Filed Aug. 16, 1995 PCT Pub. No. WO96/06065 PCT Pub. Date Feb. 29, 1996An improved process for preparing an aromatic dicarboxylic acid wherein the improvement resides in dehydrating and recovering solvent from a feed stream having from 20% to 40% by weight water via azeotropic distillation with organic phase reflux using an entrainer selected from isobutyl acetate, n-propyl acetate or an entrainer with a boiling point between isobutyl acetate and n-propyl acetate.
Inventors:
Patten, William David
Aure McPherson
Aure McPherson
Application Number:
JP50785396A
Publication Date:
January 17, 2007
Filing Date:
August 16, 1995
Export Citation:
Assignee:
INVISTA Technologies S.a.r.l.
International Classes:
C07C63/14; C07C51/265; C07C51/46; C07C63/26
Domestic Patent References:
| JP53127430A |
Attorney, Agent or Firm:
Yoshikazu Tani
Kazuo Abe
Kazuo Abe