PROCESS FOR PREPARING ACYLSULFAMOYLBENZAMIDES
    41.
    发明申请
    PROCESS FOR PREPARING ACYLSULFAMOYLBENZAMIDES 有权
    制备氨基磺酰苯胺的方法

    公开(公告)号:US20100094052A1

    公开(公告)日:2010-04-15

    申请号:US12557727

    申请日:2009-09-11

    CPC classification number: C07C303/40 C07C311/51

    Abstract: The invention relates to a process for the preparation of a compound of formula (I): Which comprises reaction of a compound of formula (II) with a compound of the formula (III) in the presence of a chlorinating agent, followed by reaction of the resultant compound of the formula (IV) with a compound of formula (V) in the presence of a base: wherein the various symbols are as defined in claim 1.

    Abstract translation: 本发明涉及一种制备式(I)化合物的方法:其包括式(II)化合物与式(III)化合物在氯化剂存在下反应,随后将 所得式(Ⅳ)化合物与式(Ⅴ)化合物在碱存在下反应:其中各种符号如权利要求1所定义。

    Nuclear fuel assembly coolant control
    50.
    发明授权
    Nuclear fuel assembly coolant control 失效
    核燃料组件冷却控制

    公开(公告)号:US5066453A

    公开(公告)日:1991-11-19

    申请号:US389298

    申请日:1989-08-03

    CPC classification number: G21C3/322 G21Y2002/201 G21Y2004/30 Y02E30/38

    Abstract: An apparatus for controlling the flow of coolant through a nuclear fuel assembly, in which a coolant flow restrictor 26 having longitudinal ducts 30 is provided with plug members 48, 49, 50 of different lengths. The plug members 48, 49, 50 are moved longitudinally by the effect of neutron induced growth on an actuating member 60. A connecting member 53 converts the growth of the actuating member 60 into a longitudinal movement of the plug members 48, 49, 50 so that they are progressively withdrawn from the flow restrictor 26 to increase the flow of coolant through the flow restrictor 26.

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