Invention Grant
- Patent Title: Cyclohexanol, method for producing cyclohexanol, and method for producing adipic acid
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Application No.: US14130420Application Date: 2012-06-28
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Publication No.: US09771313B2Publication Date: 2017-09-26
- Inventor: Naoki Narisawa , Katsutoshi Tanaka
- Applicant: Naoki Narisawa , Katsutoshi Tanaka
- Applicant Address: JP Tokyo
- Assignee: ASAHI KASEI CHEMICALS CORPORATION
- Current Assignee: ASAHI KASEI CHEMICALS CORPORATION
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2011-154023 20110712
- International Application: PCT/JP2012/066545 WO 20120628
- International Announcement: WO2013/008637 WO 20130117
- Main IPC: C07C51/00
- IPC: C07C51/00 ; C07C51/31 ; C07C29/04 ; C07C29/80 ; C07C35/08

Abstract:
A purified cyclohexanol of the present invention has a methylcyclopentanol concentration of 10 to 1000 ppm by weight and a cyclohexylcyclohexene isomer concentration of 15 to 500 ppm by weight. A method for producing cyclohexanol of the present invention comprises: Step 1 of producing a solution (I) containing cyclohexanol, methylcyclopentanol, and water by a hydration reaction of cyclohexene; Step 2 of separating the solution (I) into a water phase and an oil phase; Step 3 of obtaining a partially purified cyclohexanol containing methylcyclopentanol from the oil phase; and Step 4 of separating and removing methylcyclopentanol in the partially purified cyclohexanol so as to obtain a purified cyclohexanol having a methylcyclopentanol concentration of 10 to 1000 ppm by weight and a cyclohexylcyclohexene isomer concentration of 15 to 500 ppm by weight.
Public/Granted literature
- US20140256981A1 CYCLOHEXANOL, METHOD FOR PRODUCING CYCLOHEXANOL, AND METHOD FOR PRODUCING ADIPIC ACID Public/Granted day:2014-09-11
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