Patent ID: 9051244
Filing Date: 2015-06-09
Classification: C07C

Abstract:
1. A process for the conversion of lignin to substituted phenolic compounds, said process comprising the steps of: i. charging lignin and a catalyst in the ratio ranging between 0.1:1 to 1:0.1 into a reactor followed by charging a solvent, wherein the catalyst consists of a heterogeneous solid acid catalyst; ii. optionally flushing the reactor with nitrogen, argon, helium, hydrogen or air; iii. adjusting the reactor to operate at atmospheric pressure and heating the reactor to a temperature in the range of 50 to 300° C. with stirring; iv. raising the stirring speed to 10 to 2000 rpm after stabilizing at the temperature; and v. carrying out a reaction for a period in the range of 0.1 to 96 hours to obtain substituted phenolic compounds.