Manufacture of high-purity hydroxyacetic acid

Details Manufacture of high-purity hydroxyacetic acid Manufacture of high-purity hydroxyacetic acid

C - Chemistry, Metallurgy

07

C

C07C 59/06 (2006.01) C07C 51/12 (2006.01) C07C 51/42 (2006.01) C07C 51/43 (2006.01) C07C 51/47 (2006.01)

Patent

CA 2091906

2091906 9205138 PCTABS00011 The invention relates to a process for the manufacture of high-purity, crystalline hydroxyacetic acid from crude hydroxyacetic acid made by the carbonylation reaction of formaldehyde and water in the presence of an organic acid and sulfuric acid by employing a crystallization step during the purification of the crude hydroxyacetic acid.

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