Patent ID: 8921618
Filing Date: 2014-12-30
Classification: C07C

Abstract:
1. A method of reclaiming trimethylolpropane from purification residue comprising hydrolyzing a purification residue with an aqueous medium in the presence of (i) an acid and (ii) an oxidizing agent to reclaim trimethylolpropane from one or more TMP-formals selected from: monocyclic TMP-formal (MCF); Formula I: monolinear bis-TMP-formal (MBLF); Formula II: Methyl-(monolinear)TMP-formal; Formula III Methyl-(bislinear)TMP-formal; Formula IV and the cyclic formal of di-TMP; Formula V: wherein the hydrolysis reaction is carried out at a pH of from 1 to 4 and wherein the oxidizing agent is supplied to the hydrolysis reaction in an amount of from 2 wt % to 40 wt % based on the dry weight of the purification residue.