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Title:
CYCLOHEXANOL, METHOD FOR PRODUCING CYCLOHEXANOL, AND METHOD FOR PRODUCING ADIPIC ACID
Document Type and Number:
WIPO Patent Application WO/2013/008637
Kind Code:
A1
Abstract:
Purified cyclohexanol of the present invention has a methylcyclopentanol concentration of 10-1000 ppm by weight and a cyclohexyl cyclohexene isomer concentration of 15-500 ppm by weight. A method for producing cyclohexanol of the present invention comprises: a step 1 wherein a solution (I) which contains cyclohexanol, methylcyclopentanol and water is produced by a hydration reaction of cyclohexene; a step 2 wherein the solution (I) is separated into a water phase and an oil phase; a step 3 wherein partially purified cyclohexanol that contains methylcyclopentanol is obtained from the oil phase; and a step 4 wherein purified cyclohexanol having a methylcyclopentanol concentration of 10-1000 ppm by weight and a cyclohexyl cyclohexene isomer concentration of 15-500 ppm by weight is obtained by separating and removing methylcyclopentanol in the partially purified cyclohexanol.

Inventors:
NARISAWA NAOKI (JP)
TANAKA KATSUTOSHI (JP)
Application Number:
PCT/JP2012/066545
Publication Date:
January 17, 2013
Filing Date:
June 28, 2012
Export Citation:
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Assignee:
ASAHI KASEI CHEMICALS CORP (JP)
NARISAWA NAOKI (JP)
TANAKA KATSUTOSHI (JP)
International Classes:
C07C35/08; C07C29/04; C07C51/31; C07C55/14
Domestic Patent References:
WO2001047845A12001-07-05
WO2009031216A12009-03-12
Foreign References:
JPH11302209A1999-11-02
JPH07165646A1995-06-27
JPH0231056B21990-07-11
JPS61257940A1986-11-15
JPH0231056A1990-02-01
JP22828382A1982-12-30
JPS58110419A1983-07-01
JPS573714A1982-01-09
JPS57129820A1982-08-12
JPS57123817A1982-08-02
JPS57200218A1982-12-08
JPH0441131A1992-02-12
US3702886A1972-11-14
JPH03193622A1991-08-23
Other References:
"Kagaku Daijiten", vol. 3, 1963, KYORITSU SHUPPAN CO., LTD., article "Crystal", pages: 349
See also references of EP 2733136A4
Attorney, Agent or Firm:
INABA, Yoshiyuki et al. (JP)
Yoshiyuki Inaba (JP)
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