Isolation and recovery of compounds containing hydroxyl and/or carboxyl groups from chemical waste, comprises converting the hydroxyl and/or carboxyl groups into ethers and/or esters, followed by their subsequent removal

摘要

Isolation and recovery of compounds containing hydroxyl and/or carboxyl groups from chemical waste, comprises converting the hydroxyl and/or carboxyl groups into ethers and/or esters by adding alcohols and/or acids. The ethers/esters are subsequently removed. An Independent claim is also included for a process for recovering glycolic acid esters from distillation residues produced in vinyl acetate synthesis.