Preparation of monomethylamine from ammonia and methanol using a zeolitic catalyst.

摘要

High seiectivity in monomethylamine can be achieved by reacting methanol and ammonia, in such amounts as to provide a C/N ratio, from the methanol and ammonia reactants, of 0.5-1.5,in the presence of a catalyst selected from
a) mordenite wherein the primary cation is Li, Na, HNa having at least 2% Na by weight, K, Ca, Sr, Ba, Ce, Zn or Cr
b) ferrierite wherein the primary metal cation is Li, Na, K, Ca, Sr, 19a, Ce or Fe
c) erionite ore
d) Calcium erionite and
e) clinoptilolite ore,
at a temperature of 250-475 DEG C, a pressure of 7-7000 kPa, a contact time, normalized to 7 kPa pressure, of 0.1-60 seconds and a methanol conversion of 15-95%.