Process for purification of acrylic acid by fractional...

C - Chemistry – Metallurgy – 07 – C

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260/532.5

C07C 57/07 (2006.01) C07C 51/43 (2006.01)

Patent

CA 1117974

(5052) PROCESS FOR PURIFICATION OF ACRYLIC ACID BY FRACTIONAL CRYSTALLIZATION ABSTRACT Pure acrylic acid may be obtained from an aqueous solution containing acrylic acid by fractional crystallization wherein a salt is added to the aqueous solution that eliminates the eutectic point between acrylic acid and water.

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