Title:
METHOD FOR PRODUCING XYLYLENE GLYCOL
Document Type and Number:
Japanese Patent JP2002255872
Kind Code:
A
Abstract:
To efficiently produce high-purity xylylene glycol when producing the xylylene glycol by hydrolyzing xylylene diacetate.
This method for producing the xylylene glycol by hydrolyzing the xylylene diacetate comprises subjecting the xylylene diacetate to the hydrolysis reaction in the presence of an acid catalyst, crystallizing the xylylene glycol by using an organic solvent to recover the xylylene glycol as a crystal, taking out a reaction intermediate from the organic solvent after recovering the xylylene glycol, and reusing the taken out reaction intermediate in the hydrolysis reaction of the xylylene diacetate.
Inventors:
SATO YUICHI
Application Number:
JP2001054957A
Publication Date:
September 11, 2002
Filing Date:
February 28, 2001
Export Citation:
Assignee:
NIPPON CATALYTIC CHEM IND
International Classes:
C07C27/02; C07B61/00; C07C33/26; (IPC1-7): C07C27/02; C07C33/26
Attorney, Agent or Firm:
Shohei Oguri (4 outside)