Purification of crude (meth)acrylic acid

Details Purification of crude (meth)acrylic acid Purification of crude (meth)acrylic acid

C - Chemistry, Metallurgy

07

C

C07C 57/07 (2006.01) C07C 51/44 (2006.01)

Patent

CA 2162950

In a process for purifying crude (meth)acrylic acid, the crude (meth)acrylic acid is worked up by distillation after addition of an organic carboxylic acid hydrazide and, if desired, an organic sulfonic acid.

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