A process for the production of N-phosphonomethylglycine comprising contacting N-phosphonomethyliminodiacetic acid with a molecular oxygen-containing gas in the presence of a catalyst selected from the group consisting of the salts and salt complexes of manganese, cobalt, iron, nickel, chromium, ruthenium, aluminum, molybdenum, vanadium and cerium, and an effective amount of a dipyridyl compound.  
                            一种生产 N-膦酰甲基甘
氨酸的工艺,包括在一种催化剂存在下,使 N-膦酰甲基
亚氨基二乙酸与含氧分子气体接触,该催化剂选自由
锰、
钴、
铁、
镍、
铬、
钌、铝、
钼、
钒和
铈的盐和盐络合物以及有效量的二
吡啶化合物组成的组。