METHOD FOR PRODUCING AND SEPARATING ALICYCLIC ALCOHOLS

Title:

METHOD FOR PRODUCING AND SEPARATING ALICYCLIC ALCOHOLS

Document Type and Number:

Japanese Patent JP2001131105

Kind Code:

A

Abstract:

To efficiently separate an alicyclic monool and/or a alicyclic diol from a mixture containing at least the alicyclic monool and the alicyclic diol.

This method for separating the alicyclic alcohol is a method for separating the monodiol and the diol from the mixture containing at least the alicyclic monodol and the alicyclic diol. The method comprises (b) an alicyclic monool crystallization process for subjecting the mixture to a crystallization operation using an aqueous solvent containing at least water to crystallize the alicyclic monool, (c) an extraction process for extracting a residual liquid from which the alicyclic monool is recovered with a mixed solvent of a ≥3C alcohol and an alicyclic hydrocarbon and partitioning the alicyclic diol into an organic solvent layer. Further the method may include (d) an alicyclic monool cleaning process for cleaning a crystal obtained by the alicyclic monool crystallization process with an aqueous solution of an alkali.

Inventors:

CHIKAMORI MASAHIRO
NOGUCHI TAKUYA
KATAOKA TAKESHI

Application Number:

JP31445599A

Publication Date:

May 15, 2001

Filing Date:

November 04, 1999

Export Citation:

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Assignee:

DAICEL CHEM

International Classes:

C07C29/78; C07B61/00; C07C29/50; C07C29/86; C07C35/37; C07C45/29; C07C49/453; (IPC1-7): C07C29/78; C07C35/37; C07C45/29; C07C49/453

Domestic Patent References:

JPH10204014A	1998-08-04
JPS6333350A	1988-02-13
JPH10114702A	1998-05-06
JPH11189564A	1999-07-13

Attorney, Agent or Firm:

Yukihisa Goto

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