Deeply reduced oxidation catalyst and its use in preparing N-(phosphonomethyl) glycine compounds

摘要: This invention relates to an improved catalyst, comprising a carbon support having noble metal at its surface, for use in catalyzing liquid phase oxidation reactions, especially acidic oxidative environment and the presence of solvents, reactants, intermediates, or products which solubilize metals; process preparation catalyst; using such catalyst wherein exhibits resistance leaching, particularly environments N-(phosphonomethyl)iminodiacetic acid (i.e., “PMIDA”) salt thereof is oxidized form N-(phosphonomethyl)glycine “glyphosate”) formaldehyde formic by-products into dioxide water increased.