Process for the preparation of tertiary n,n- dimethylamines

Details Process for the preparation of tertiary n,n- dimethylamines Process for the preparation of tertiary n,n- dimethylamines

C - Chemistry, Metallurgy

07

C

260/595, 260/609

C07C 209/24 (2006.01) C07C 209/26 (2006.01) C07C 211/08 (2006.01) C07C 211/09 (2006.01) C07C 213/02 (2006.01)

Patent

CA 1323880

Abstract of Disclosure A process for the preparation of tertiary N,N-dimethylamines by the reaction of primary amines, formaldehyde, and hydrogen under pressure and at elevated temperature in the presence of a nickel-containing hydrogenation catalyst in the liquid phase. The hydrogenation catalyst is suspended in a solvent, the nickel concentration is 0.1 to 10% by weight, based on the primary amine. The starting materials are separate from each other, brought to 80° to 150°C and 1 to 15 MPa and fed into the catalyst suspension simultaneously with stirring and reacted in one step to form the tertiary N,N-dimethylamines.

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