Process for synthesizing vanillin from alkali lignin by green chemical method

Application Number: 00117415
Application Date: 2000.09.14
Publication Number: 1285395
Publication Date: 2001.02.28
Priority Information:
International: C11B9/00
Applicant(s) Name: Huanan Agriculture Univ.
Address:
Inventor(s) Name: Zhou Qiang;Chen Zhonghao
Patent Agency Code: 44201
Patent Agent: wu hongda
Abstract The preparation process of vanillin from alkali lignin by green chemical synthesis method includes the steps of industrial-level lignin purification, catalyst for ming, multi-phase catalytic oxidation reaction, catalyst recovery and regeneration, recovery of organic solvent and obtaining vanillin. Said invention not only can raise yield of vanillin and reduce energy consumption and production cost, but also can repeatedly use catalyst and have no environmental pollution, so that it is favourable for comprehensive treatment of paper mill.