Preparation of dimethylamine

Details Preparation of dimethylamine Preparation of dimethylamine

C - Chemistry, Metallurgy

01

C

23/216, 260/609.

C01C 1/08 (2006.01) C07C 209/64 (2006.01)

Patent

CA 1135939

ABSTRACT OF THE DISCLOSURE Improved continuous process for dispropor- tionating monomethylamine to dimethylamine and ammonia, said process comprising passing monomethylamine over the crystalline aluminosilicate catalyst selected from a) mordenite wherein the primary cation is Na, HNA having at least 2% Na, Mg, Ca, Sr or Ba b) ferrierite wherein the primary metal cation is Na, K. Mg, Ca, Sr or Ba c) clinoptilolite and d) phillipsite, at a temperature of 250-475°C and a pressure of 7-7000 kPa, at a feed rate of 0.1-10 g of monomethyl- amine/g of catalyst per hour, at a monomethylamine conversion of 15-75%.

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