Process for manufacturing high purity methacrylic acid

摘要

A process is provided herein for the high yield production of high purity glacial methacrylic acid ("HPMAA") that is substantially pure, specifically 99% pure or greater with a water content of 0.05% or less. This improved process comprises providing a crude MAA stream and purifying the crude methacrylic acid stream in a series of successive distillation steps