Method for preparation of N-methyl formamide

The preparation method uses a two-step continuous technological process. First step is to prepare methyl formate by making methyl alcohol pass through the process of catalytic dehydrogenation, and second step is to make methyl formate and methylamine pass through the aminating reaction, then the product is separated and refined. ADVANTAGE-. the technological process is simple, and can make continuous production; the percent conversion of its dehydrogenation catalyst is high, selectivity is high, and its service life can be up to above 2.5 years.