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    • 8. 发明授权
    • Reaction systems for making N-(phosphonomethyl) glycine compounds
    • 制备N-(膦酰基甲基)甘氨酸化合物的反应体系
    • US07504534B2
    • 2009-03-17
    • US11285721
    • 2005-11-22
    • Eric A. HaupfearHenry ChienEduardo CasanovaWilliam B. Hooper
    • Eric A. HaupfearHenry ChienEduardo CasanovaWilliam B. Hooper
    • C07F9/22
    • C07F9/3813Y02P20/582
    • 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.
    • 本发明一般涉及制备N-(膦酰基甲基)甘氨酸(农业化学工业中也称为草甘膦)和相关化合物的液相氧化方法。 本发明特别涉及N-(膦酰基甲基)亚氨基二乙酸(NPMIDA)底物(即N-(膦酰基甲基)亚氨基二乙酸,N-(膦酰基甲基)亚氨基二乙酸的盐或N - (膦酰基甲基)亚氨基二乙酸)连续氧化形成N-(膦酰基甲基)甘氨酸产物(即N-(膦酰基甲基)甘氨酸,N-(膦酰基甲基)甘氨酸的盐或N-(膦酰基甲基)甘氨酸的酯 )。 本发明还特别涉及其中N-(膦酰基甲基)亚氨基二乙酸底物被氧化以形成N-(膦酰基甲基)甘氨酸产物的方法,其反过来在绝热中结晶(至少部分地) 结晶器。