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    Process for the production of high-purity iron oxide
    123.
    发明公开
    Process for the production of high-purity iron oxide 失效
    Verfahren zur Herstellung hochreinen Eisenoxids。

    公开(公告)号：EP0046973A1

    公开(公告)日：1982-03-10

    申请号：EP81106592.9

    申请日：1981-08-25

    申请人： Solex Research Corporation of Japan

    发明人： Watanabe, Morio ,  Nishimura, Sanji

    IPC分类号： C01G49/06 ,  C01G49/10

    CPC分类号： C01G49/06

    摘要： Described is a process for the production of high-purity iron oxide comprising:

    A step of contacting an iron ions-containing organic solution containing one or more compounds selected from the group consisting of alkyl phosphoric acids, alkyl and aryl dithio phosphoric acids, carboxylic acids and hydroxyoximes together with a petroleum hydrocarbon as a diluent with an aqueous solution containing one or more compounds selected from the group consisting of HF, NH 4 HF 2 and NH 4 F to obtain ammonium iron fluoride or iron fluoride, and
    a step of heating the ammonium iron fluoride or iron fluoride obtained in a gas atmosphere containing oxygen or water.

    摘要翻译： 描述了一种生产高纯度氧化铁的方法，包括：使含有铁离子的有机溶液与含有一种或多种选自烷基磷酸，烷基和芳基二硫代磷酸的化合物，羧酸 和羟基肟与作为稀释剂的石油烃与含有一种或多种选自HF，NH 4 HF 2和NH 4 F的化合物的水溶液混合以获得氟化铁或氟化铁，以及加热氟化铁或铁 在含有氧或水的气氛中得到的氟化物。

    Automatic cold start devices for spark ignition internal combustion engines
    124.
    发明公开
    Automatic cold start devices for spark ignition internal combustion engines 失效
    自动冷启动装置与火花点火内燃机。

    公开(公告)号：EP0035349A1

    公开(公告)日：1981-09-09

    申请号：EP81300723.4

    申请日：1981-02-20

    申请人： SOLEX (U.K.) LIMITED

    发明人： Ross, Gray Ernest Donald

    IPC分类号： F02N17/08 ,  F02M1/04

    CPC分类号： F02N19/001 ,  F02M1/046

    摘要： An automatic cold start fuel supply device comprises a needle (67) movable with engine temperature by a bimetallic element (57) via a rotary member (51). A spring (74), which is normally compressed by the action of manifold depression on a diaphragm (72), acts when expanded through the diaphragm (72) and a lever (76) on an arm (53) of the rotary member (51). The geometry of the lever (76) and the rotary member (51) is such that the rotary member (51) is so positioned by the bimetallic element (57) when the engine is warm that it is not rotated by the load that is applied to its arm (53) by the action of the spring (74) whereas it is so rotated against the action of the bimetallic element (57) when the engine temperature is below the normal running temperature.