Process for production of red phosphorous powder
    1.
    发明授权
    Process for production of red phosphorous powder 失效
    红磷粉生产工艺

    公开(公告)号:US5292494A

    公开(公告)日:1994-03-08

    申请号:US19258

    申请日:1993-02-18

    CPC分类号: C01B25/023

    摘要: A process for the production of a red phosphorus powder, which comprises heating a yellow phosphorus at the boiling point therof in the presence of a dispersant selected from the group of a surfactant, a sparingly in water, finely powdered inorganic compound, an inorganic ammonium salt or an organic compound containing an amino group, thereby to partly convert the yellow phosphorus to red phosphorus, removing most of the unconverted yellow phosphorus by distillation at the boiling point of yellow phosphorus, and further removing the slight amount of the still remaining yellow phosphorus by heating a temperature not lower than the boiling point of yellow phosphorus to obtain a red phosphorus fine powder which is less apt to undergo a disproportionation reaction.

    摘要翻译: 一种制备红磷粉末的方法,其包括在选自表面活性剂,微量水,细粉状无机化合物,无机铵盐的分散剂的存在下,在沸点下加热黄磷 或含有氨基的有机化合物,从而将黄磷部分地转化为红磷,通过在黄磷沸点下蒸馏除去大部分未转化的黄磷,并通过以下方式进一步除去少量的剩余的黄磷: 加热不低于黄磷沸点的温度,得到不容易发生歧化反应的红磷细粉末。

    Ignition coil and method for manufacturing an ignition coil
    3.
    发明授权
    Ignition coil and method for manufacturing an ignition coil 有权
    点火线圈及点火线圈制造方法

    公开(公告)号:US07234454B2

    公开(公告)日:2007-06-26

    申请号:US11481047

    申请日:2006-07-06

    IPC分类号: F02P3/02 H01F38/12

    摘要: An ignition coil is disclosed. The ignition coil includes an insulative material, a body, and a head coupled to the body. A portion of the insulative material is included in the body, and a portion of the insulative material is included in the head. The head includes a casing, a flange for coupling to an engine case, and a connector adapted to be connected to an external device. The head also includes a conducting terminal with a connector pin, an exposed contact, and a connecting part. The connector pin is coupled to the connector, the exposed contact is coupled to the casing or the flange, and the connecting part couples the exposed contact and the connector pin. A portion of the connecting part is embedded in the insulative material, and wherein a remaining portion is embedded in the casing. A method of manufacturing the ignition coil is also disclosed.

    摘要翻译: 公开了点火线圈。 点火线圈包括绝缘材料,主体和联接到主体的头部。 绝缘材料的一部分被包括在主体中,绝缘材料的一部分被包括在头部中。 头部包括壳体,用于联接到发动机壳体的凸缘以及适于连接到外部装置的连接器。 头还包括具有连接器针,暴露触点和连接部分的导电端子。 连接器针连接到连接器,暴露的触点耦合到壳体或凸缘,并且连接部件将暴露的触点和连接器引脚相连接。 连接部分的一部分嵌入在绝缘材料中,并且其中剩余部分嵌入壳体中。 还公开了一种制造点火线圈的方法。

    Cooling tower
    4.
    发明授权
    Cooling tower 失效
    冷却塔

    公开(公告)号:US5958308A

    公开(公告)日:1999-09-28

    申请号:US20893

    申请日:1998-02-09

    摘要: Hot water is sprayed to fillers arranged immediately under a hot water vessel through spray ports opened on a lower surface of the hot water vessel. The hot water flowing down along the fillers is cooled through direct contact with ambient air. The cooling tower includes fillers partitioned alternately into permanent wet and wet-dry changeover regions which are mutually isolated for flow passages of the ambient air and spray pipes provided on the lower surface of the hot water vessel exclusively for the wet-dry changeover regions such that the hot water can be sprayed to the wet-dry changeover regions separately from the permanent wet regions. The hot water vessel is supported by the spray pipes. The spray ports of the hot water vessel is communicated only with the permanent wet regions.

    摘要翻译: 将热水通过在热水容器的下表面上开口的喷雾口喷射到紧邻热水容器下面的填料上。 沿着填料流下的热水通过与环境空气直接接触而冷却。 冷却塔包括交替分配成永久性湿式和湿式干式转换区域的填料,其相互隔离用于环境空气的流动通道和设置在热水容器的下表面上的专用于湿 - 干转换区域的喷管,使得 热水可以与永久湿润区域分开地喷洒到干湿转换区域。 热水容器由喷管支撑。 热水容器的喷水口仅与永久湿区连通。

    Process for the production of alkali metal hypophosphites
    5.
    发明授权
    Process for the production of alkali metal hypophosphites 失效
    生产碱性金属氢氧化物的方法

    公开(公告)号:US5225052A

    公开(公告)日:1993-07-06

    申请号:US707000

    申请日:1991-05-29

    IPC分类号: C01B25/163 C01B25/165

    CPC分类号: C01B25/165 C01B25/163

    摘要: High purity alkali metal hypophosphites are produced in high efficiency by a simple step of using no other separating agents than white phosphorus, alkali metal hydroxides and water as reaction raw materials, resulting in no need of a complicated procedure for removing impurities. This process comprises reacting white phosphorus and an alkali metal hydroxide in an aqueous medium to prepare a crude solution of an alkali metal hypophosphite containing the phosphite, feeding the crude solution to a desalting compartment of an electrodialytic cell in which cation exchange membranes and univalent anion permeable membranes are alternately arranged between a cathode and an anode to form at least one pair of a desalting compartment and a concentrating compartment, so as to separate the hypophosphite from the crude solution, during which a dilute solution of an alkali hypophosphite is fed to the concentrating compartment, subjecting them to electrodialysis, withdrawing the purified solution of the alkali metal hypophosphite from the concentrating compartment and concentrating and crystallizing the the thus purified solution.