Manufacture of trimethylolpropane

Details Manufacture of trimethylolpropane Manufacture of trimethylolpropane

C - Chemistry, Metallurgy

07

C

C07C 31/22 (2006.01) C07C 29/141 (2006.01) C07C 29/38 (2006.01)

Patent

CA 2124189

2124189 9407831 PCTABS00032 Trimethylolpropane of high purity is efficiently made by mixing the aldol reaction product of formaldehyde and n-butyraldehyde with at least about 20 wt % of a lower alcohol prior to hydrogenation to allow recovery of high purity product by simple distillation. In a less preferred mode, the alcohol may be added after hydrogenation, resulting in a smaller improvement over previous processes.

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