REACTION SYSTEMS FOR MAKING N-(PHOSPHONOMETHYL) GLYCINE COMPOUNDS
    2.
    发明申请
    REACTION SYSTEMS FOR MAKING N-(PHOSPHONOMETHYL) GLYCINE COMPOUNDS 审中-公开
    制备N-(膦酰基)乙酰化合物的反应体系

    公开(公告)号:US20090259068A1

    公开(公告)日:2009-10-15

    申请号:US12365507

    申请日:2009-02-04

    IPC分类号: C07F9/38 B01D1/00 B01D9/00

    CPC分类号: C07F9/3813 Y02P20/582

    摘要: 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.

    摘要翻译: 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。