Process for purifying methyl methacrylate

C - Chemistry – Metallurgy – 07 – C

Patent

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260/496.8

C07C 67/58 (2006.01) C07C 69/54 (2006.01)

Patent

CA 1332744

ABSTRACT OF THE DISCLOSURE A process for purifying methyl methacrylate which comprises treating methyl methacrylate having a purity of 99.5% or more containing a trace of impurities with one or more sulfonic acid group-containing compounds. According to the present invention, there can be obtained highly purified methyl methacrylate which exhibits an absorbance of 0.02 or less in a range of wavelength of 400 - 500 nm according to the sulfuric acid color method and is free of even a trace of furan-type compounds.

599924

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