SEPARATION OF METHYLGLYCOLATE FROM ACIDIC SOLUTION

摘要

In a manufacturing process of ethyleneglycol reaction solutionwhich is made by carbonyl reaction and esterification reaction contains methylglycolate, dioxane, water, methanol and hydrogen ion. This reaction solution is sent to neutralization reactor(4) and neutralized by addited alkali to give a salt. Reaction solution containing salt is distilled in the distilling tower(6) to separate methanol, water and dioxane from methylglycolate,salt and liquid. Methanol which is seperated from dioxane is recirculated to carbonyl reactor(i). Solution which seperated from the lower part of the distillating tower contains methylglycolate,salt and dioxane is sent to solid-liquid seperator(7) to seperate methylglycolate from solvent.