Process for the preparation of N-(phosphonomethyl)glycine by oxidizing N-substituted N-(phosphonomethyl)glycine
    1.
    发明授权
    Process for the preparation of N-(phosphonomethyl)glycine by oxidizing N-substituted N-(phosphonomethyl)glycine 有权
    通过氧化N-取代的N-(膦酰基甲基)甘氨酸制备N-(膦酰基甲基)甘氨酸的方法

    公开(公告)号:US06232494B1

    公开(公告)日:2001-05-15

    申请号:US09263171

    申请日:1999-03-05

    IPC分类号: C07F938

    CPC分类号: C07F9/3813 Y02P20/582

    摘要: This invention is directed to an improved process for the preparation of N-(phosphonomethyl)glycine (i.e., “glyphosate”), a salt of N-(phosphonomethyl)glycine, or an ester of N-(phosphonomethyl)glycine. The process comprises combining an N-substituted N-(phosphonomethyl)glycine reactant with oxygen in the presence of a noble metal catalyst. The N-substituted N-(phosphonomethyl)glycine reactant has formula (V): wherein R1 and R2 are independently selected from the group consisting of hydrogen, halogen, —PO3R12R131, —SO3R14, —NO2, hydrocarbyl, and substituted hydrocarbyl other than —CO2R15; and R7, R8, R9, R12, R13, R14, and R15 are independently selected from the group consisting of hydrogen, hydrocarbyl, substituted hydrocarbyl, and an agronomically acceptable cation.

    摘要翻译: 本发明涉及制备N-(膦酰基甲基)甘氨酸(即“草甘膦”),N-(膦酰基甲基)甘氨酸的盐或N-(膦酰基甲基)甘氨酸的酯的改进方法。 该方法包括在贵金属催化剂存在下将N-取代的N-(膦酰基甲基)甘氨酸反应物与氧组合。 N-取代的N-(膦酰基甲基)甘氨酸反应物具有式(V):其中R 1和R 2独立地选自氢,卤素,-PO 3 R 12 R 13 1,-SO 3 R 14,-NO 2,烃基和取代的烃基, CO2R15; 并且R 7,R 8,R 9,R 12,R 13,R 14和R 15独立地选自氢,烃基,取代的烃基和农艺学上可接受的阳离子。

    Dehalogenation of halogenated hydrocarbons in aqueous compositions
    2.
    发明授权
    Dehalogenation of halogenated hydrocarbons in aqueous compositions 失效
    卤代烃在含水组合物中脱卤

    公开(公告)号:US06217779B1

    公开(公告)日:2001-04-17

    申请号:US09065090

    申请日:1998-12-17

    IPC分类号: C02F170

    摘要: A method for dehalogenation of aqueous compositions contaminated with halogenated aliphatic and alicyclic hydrocarbons is provided which comprises contacting an aqueous composition with an amount of a mixed metal composition effective to dehalogenate the halogenated aliphatic and alicyclic hydrocarbons at a temperature of at least 10° C., wherein the mixed metal composition comprises a second metal selected from the group consisting of copper, cobalt, nickel, molybdenum, bismuth, tin, lead, silver, chromium, palladium, platinum and gold deposited on an anchor metal consisting essentially of iron metal and wherein the amount of second metal in the mixed metal composition is an amount effective to increase the dehalogenation rate compared to use of iron alone, and the surface of the mixed metal composition has exposed iron metal.

    摘要翻译: 提供了用卤代脂族和脂环族烃污染的含水组合物脱卤的方法,该方法包括使水性组合物与一定量的有效使卤代脂族和脂环烃脱卤的混合金属组合物在至少10℃的温度下接触, 其中所述混合金属组合物包含沉积在基本上由铁金属组成的锚固金属上的选自铜,钴,镍,钼,铋,锡,铅,银,铬,钯,铂和金的第二金属,并且其中 与单独使用铁相比,混合金属组合物中的第二金属的量是有效提高脱卤速率的量,并且混合金属组合物的表面暴露了铁金属。