Method for producing N-phosphonomethylglycine
    21.
    发明授权
    Method for producing N-phosphonomethylglycine 失效
    N-膦酰基甲基甘氨酸的制备方法

    公开(公告)号:US07145034B2

    公开(公告)日:2006-12-05

    申请号:US10481579

    申请日:2002-06-21

    IPC分类号: C07F9/22 C07F9/28

    CPC分类号: C07F9/4093 C07F9/3813

    摘要: The invention relates to a process for preparing N-phosphono-methylglycine by reacting a hexahydrotriazine compound with a triacyl phosphite in an organic solvent, hydrolyzing the resulting phosphono compound after prior extraction into an aqueous phase and separation from the organic phase. The process avoids decomposition of the organic solvent during hydrolysis.

    摘要翻译: 本发明涉及通过在有机溶剂中使六氢三嗪化合物与亚磷酸三辛酯反应制备N-膦酰基 - 甲基甘氨酸的方法,在事先将其萃取到水相中并将其与有机相分离之后水解所得的膦酰基化合物。 该方法避免了水解期间有机溶剂的分解。

    Method for producing N-phosphonomethylglycine
    22.
    发明授权
    Method for producing N-phosphonomethylglycine 失效
    N-膦酰基甲基甘氨酸的制备方法

    公开(公告)号:US07071354B2

    公开(公告)日:2006-07-04

    申请号:US10481565

    申请日:2002-06-21

    IPC分类号: C07F9/22 C07F9/28

    CPC分类号: C07F9/3813

    摘要: The present invention relates to a process for the recovery of N-phosphonomethylglycine from an aqueous mixture which contains N-phosphonomethylglycine, ammonium halides, and alkali metal or alkaline earth metal halides and optionally organic impurities in dissolved form, where (a) the pH of the mixture is adjusted to a value in the range from 2 to 8, (b) a separation of the mixture on a selective nanofiltration membrane is performed, a retentate which is richer in N-phosphonomethylglycine and poorer in halides and a permeate which is richer in halides and poorer in N-phosphonomethylglycine being obtained, and (c) the N-phosphonomethylglycine is recovered from the retentate. The process according to the invention makes possible the recovery of the N-phosphonomethylglycine with simultaneous separation of the halide salts.

    摘要翻译: 本发明涉及从含有N-膦酰基甲基甘氨酸,卤化铵和碱金属或碱土金属卤化物和任选的溶解形式的有机杂质的含水混合物中回收N-膦酰基甲基甘氨酸的方法,其中(a) 将混合物调节至2至8范围内的值,(b)进行选择性纳滤膜上的混合物分离,更富含N-膦酰基甲基甘氨酸并且较差的卤化物的渗余物和富含物的渗透物 在得到的N-膦酰基甲基甘氨酸的卤化物和较差的碱中,和(c)从渗余物中回收N-膦酰基甲基甘氨酸。 根据本发明的方法使得可以同时分离卤化物盐来回收N-膦酰基甲基甘氨酸。

    Apparatus for Bone Density Assessment and Monitoring
    24.
    发明申请
    Apparatus for Bone Density Assessment and Monitoring 失效
    骨密度评估和监测装置

    公开(公告)号:US20100284515A1

    公开(公告)日:2010-11-11

    申请号:US12463325

    申请日:2009-05-08

    IPC分类号: G01B15/02

    摘要: The present invention relates to a dual energy X-ray apparatus and method for osteoporosis assessment and monitoring. The present invention takes a bone densitometry reading of a patient's wrist to assess osteoporosis and monitor bone loss condition by repeat measurements along with therapy. The bone densitometry system has an X-ray source, dual energy detectors, an arm-rest to place the patient's arm, a motion system to move the source-detector gantry along the patient's forearm, and a computer with a database to archive the wrist image, calculate the bone mineral density, maintain a history of patient information, and generate patient history reports.

    摘要翻译: 本发明涉及用于骨质疏松症评估和监测的双能X射线装置和方法。 本发明采用患者手腕的骨密度测定法来评估骨质疏松症并通过重复测量以及治疗来监测骨丢失状况。 骨密度测定系统具有X射线源,双能量检测器,用于放置患者手臂的扶手,运动系统沿着患者前臂移动源检测器龙门架,以及具有用于存档腕部的数据库的计算机 图像,计算骨矿物质密度,维持患者信息的历史,并产生患者病史报告。