Purification process for methacrylic acids

Details Purification process for methacrylic acids Purification process for methacrylic acids

C - Chemistry, Metallurgy

07

C

C07C 57/065 (2006.01) C07C 51/377 (2006.01) C07C 51/43 (2006.01) C07C 51/44 (2006.01)

Patent

CA 2145245

A process for the preparation of an .alpha.,.beta.-unsaturated C3-C6 carboxylic acid of greater than 98% purity, which combines fractional distillation and melt crystallization procedures.

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