Title: Method for production of a liquid composition of an ortho-dihydroxybenzyl compound of high purity and said composition
Application Number: 03805583 Application Date: 2003.02.17
Publication Number: 1639086 Publication Date: 2005.07.13
Approval Pub. Date: Granted Pub. Date:
International Classifi-cation: C07B63/04;C07C39/08;C07C37/88
Applicant(s) Name: Rhone Poulenc Chimie Address:
Inventor(s) Name: Mathieu Claude
Attorney & Agent: long chuangong
Abstract:
    The invention relates to a method for production of a liquid composition of an ortho-dihydroxybenzyl compound of high purity and said composition. More particularly The invention relates to the production of a liquid composition of pyrocatechol of high purity. Said method comprises mixing an ortho-dihydroxybenzyl compound with an organic solvent and applying the specific features pertaining to the nature of the materials used in the installation.
Time: 9