Title:
DECREASE OF CYCLIC OLEFIN IN CYCLIC ALCOHOL
Document Type and Number:
Japanese Patent JP3844309
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a cyclic alcohol of high purity by catalytic hydration reaction of a cyclic olefin in the presence of crystalline aluminosilicate at a specific or lower concentration as a catalyst.
SOLUTION: This method for producing a cyclic alcohol comprises carrying out a catalytic hydration reaction of a cyclic olefin in an oil phase that contains the cyclic olefin of the formula CnH2n-2-mRm (R is a 1-4C alkyl, phenyl or cyclohexyl; (n) is an integer of 5-12; (m) is an integer of 1-4), in coexistence with (C) an aqueous phase by using (A) crystalline aluminosilicate having a primary particle diameter of ≤0.5μm as a catalyst, and distilling the cyclic alcohol-containing liquid obtained from the oil phase which contains the component B, through a rectification tower while limiting the component A contained in the liquid at any place in the rectification tower to a concentration of ≤100ppmwt. The concentration of the component A in the oil phase can be reduced by vaporizing the oil phase before being fed into the rectification tower.
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Inventors:
Shigeru Ohno
Iwasaki Mineshiro
Iwasaki Mineshiro
Application Number:
JP33335695A
Publication Date:
November 08, 2006
Filing Date:
December 21, 1995
Export Citation:
Assignee:
Asahi Kasei Chemicals Corporation
International Classes:
B01J29/18; B01J29/08; B01J29/40; C07C29/76; B01J29/50; B01J29/60; C07B61/00; C07C29/04; C07C29/80; C07C35/08; (IPC1-7): C07C35/08; B01J29/08; B01J29/18; B01J29/40; B01J29/50; B01J29/60; C07C29/04; C07C29/76; C07C29/80; //C07B61/00
Domestic Patent References:
| JP60104028A | ||||
| JP6239780A | ||||
| JP7179381A | ||||
| JP7179372A | ||||
| JP3229637A |
Other References:
三澤忠則,〈工場操作シリーズ〉新増補・濾過,株式会社化学工業社,1992年,第27-31頁
Attorney, Agent or Firm:
Masami Sakai
Norio Kagami
Jun Komatsu
Norio Kagami
Jun Komatsu