Reaction systems for making n-(phosphonomethyl)glycine compounds

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)iminodiaceti...

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Bibliographische Detailangaben
Hauptverfasser: WITTLER KENT, JORGENSON AMY I, HOOPER WILLIAM B, HAUPFEAR ERIC, ARHANCET JUAN, ROGERS MICHAEL, CASANOVA EDUARDO, LEHMANBROWN M.A, HEISE JERALD, CHIEN HENRY, SCHOLLE WILLIAM
Format: Patent
Sprache:chi ; eng
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Zusammenfassung: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.