US Patent 7504534 Reaction systems for making N-(phosphonomethyl) glycine compounds
Patent 7504534 was granted and assigned to Monsanto on March, 2009 by the United States Patent and Trademark Office.
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This invention generally relates to liquid phase oxidation processes for making N-(phosphonomethyl)glycine (also known in the agricultural chemical industry as glyphosate) and related compounds. This invention, for example, particularly relates to processes wherein an N-(phosphonomethyl)iminodiacetic acid (NPMIDA) substrate (i.e., N-(phosphonomethyl)iminodiacetic acid, a salt of N-(phosphonomethyl)iminodiacetic acid, or an ester of N-(phosphonomethyl)iminodiacetic acid) is continuously oxidized to form an N-(phosphonomethyl)glycine product (i.e., N-(phosphonomethyl)glycine, a salt of N-(phosphonomethyl)glycine, or an ester of N-(phosphonomethyl)glycine). This invention also, for example, particularly relates to processes wherein an N-(phosphonomethyl)iminodiacetic acid substrate is oxidized to form an N-(phosphonomethyl)glycine product, which, in turn, is crystallized (at least in part) in an adiabatic crystallizer.
US Patent 07504534 Reaction systems for making N-(phosphonomethyl) glycine compounds US Patent 7504534 Reaction systems for making N-(phosphonomethyl) glycine compounds
US Patent 07504534 Reaction systems for making N-(phosphonomethyl) glycine compounds
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