Title:
1,6-ヘキサンジオールの純度の改良方法
Document Type and Number:
Japanese Patent JP3773262
Kind Code:
B2
Abstract:
PCT No. PCT/EP96/00023 Sec. 371 Date Jul. 1, 1997 Sec. 102(e) Date Jul. 1, 1997 PCT Filed Jan. 4, 1996 PCT Pub. No. WO96/20909 PCT Pub. Date Jul. 11, 1996Impurities are separated from aqueous solutions of 1,6-hexanediol or 1,6-hexanediol precursors, such as adipic and 6-hydroxycaproic acid, by a process which comprises adding at least one carboxylic acid to a solution (a) of 1,6-hexanediol and subjecting this solution (a) or a solution (b) containing carboxylic acid(s) as precursor(s) of 1,6-hexanediol to a heat treatment at temperatures above room temperature in the absence of hydrogen.
Inventors:
Roman de Stalake
Rolf Fisher
Wolfgang Harder
Axel pawl
Rolf pin course
Rolf Fisher
Wolfgang Harder
Axel pawl
Rolf pin course
Application Number:
JP52073396A
Publication Date:
May 10, 2006
Filing Date:
January 04, 1996
Export Citation:
Assignee:
BASF Aktiengesellschaft
International Classes:
C07C31/20; C07C29/88; C07C55/14; C07C59/01
Domestic Patent References:
| JP1249735A | ||||
| JP51108040A |
Foreign References:
| US3524892 |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Reinhard Einsel