Process for the preparation of n,n-dimethylamine

Details Process for the preparation of n,n-dimethylamine Process for the preparation of n,n-dimethylamine

C - Chemistry, Metallurgy

07

C

260/609.1, 260/6

C07C 209/60 (2006.01) C07C 209/26 (2006.01) C07C 209/86 (2006.01) C07C 211/08 (2006.01)

Patent

CA 2032362

The present invention relates to a process for the preparation of N,N-dimethylamines by reaction of an aldehyde with dimethylamine and hydrogen under pressure and at elevated temperature in the presence of a hydrogenation catalyst containing Ni, Co, Cu, Mn, Fe, Rh, Pd and/or Pt. After unconverted dimethylamine and excess hydrogen have been separated off, formaldehyde or a formaldehyde-forming substance is added, and distillation is carried out.

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