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    Apparatus and method for the production of oxides of lead
    2.
    发明公开
    Apparatus and method for the production of oxides of lead 失效
    Einrichtung und Verfahren zur Herstellung von Bleioxiden。

    公开(公告)号：EP0365260A2

    公开(公告)日：1990-04-25

    申请号：EP89310609.6

    申请日：1989-10-16

    申请人： OXIDE TECHNOLOGY CORPORATION

    发明人： McKinney, B. F. ,  Maurer, Kenneth ,  Busdieker, Earl E.

    IPC分类号： C01G21/02 ,  C22B13/02

    CPC分类号： F27B9/38 ,  C01G21/02 ,  C01G21/06 ,  C01G21/10 ,  F27B9/029 ,  F27B9/045 ,  F27B9/063 ,  F27B9/145 ,  F27B9/24 ,  F27B2009/2484 ,  F27D2019/0068 ,  F27M2001/16

    摘要： A furnace for producing oxides of lead includes an enclosure defining a furnace chamber, a feed inlet for feeding particulate lead into the chamber, and a discharge outlet for discharging the particulate lead outside the chamber. An array of horizontally disposed serially communicating tubes are arranged vertically within the chamber, communicating between the feed inlet and the discharge outlet. A rotating valve is associated with the feed inlet, for continuously feeding particulate lead into the number of tubes. Variable drive chain and sprocket combinations are associated with each of the tubes to convey the particulate lead serially along the tubes. The furnace includes electric heat tapes surrounding the tubes, for heating the particulate lead within the tubes while the lead is being conveyed along the tubes. The furnace can be used to produce red lead from leady-oxide or litharge by first supplying air or pure oxygen into the tubes. Leady-oxide is supplied at feed inlet and heated in the first tube to 1250°F to initiate the exothermic conversion of leady-oxide to litharge. Heat from the exothermic reaction occurring in the remaining tubes of the array is used to pre-heat the first tube. Litharge formed from the exothermic reaction is exposed to a lower temperature of 850° in the lowermost tubes of the array for formation of red lead. The travel rate of the litharge determines the percentage of red lead in the final product exiting the discharge outlet.

    摘要翻译： 用于生产铅的氧化物的炉子包括限定炉室的外壳，用于将颗粒物料引入室中的进料口和用于将颗粒物料排出到室外的排出口。 水平布置的串联连接管的阵列在腔室内垂直布置，在进料口和排出口之间连通。 旋转阀与进料入口相关联，用于将颗粒状铅连续进料到多个管中。 可变驱动链和链轮组合与每个管相关联以沿着管顺序地输送颗粒。 炉子包括围绕管子的电热带，用于在导管沿着管传送的同时加热管内的颗粒引线。 该炉可用于通过首先向管中供应空气或纯氧来从铅氧化物或锂离子生产红色铅。 在进料口处供应氧化铅，并在第一管中加热至1250°F，以引发铅氧化物放电转化为硫化。 使用在阵列的剩余管中发生的放热反应的热量来预热第一管。 由放热反应形成的Litharge在阵列的最下面的管中暴露于850℃的较低温度以形成红色铅。 铅笔的行驶速率决定了离排放口的最终产品中红铅的百分比。

    A method and apparatus to continuously manufacture red lead
    6.
    发明公开
    A method and apparatus to continuously manufacture red lead 失效
    Verfahren und Vorrichtung zur kontinuierlichen Herstellung von Mennige。

    公开(公告)号：EP0508011A1

    公开(公告)日：1992-10-14

    申请号：EP91303181.1

    申请日：1991-04-10

    申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

    发明人： Yasuda, Hiroshi ,  Yonezu, Kazuyoshi ,  Takahashi, Katsuhiro ,  Yamamoto, Kenzo

    IPC分类号： C01G21/10 ,  C01G21/02

    CPC分类号： C01G21/02 ,  C01G21/10

    摘要： This invention relates to a method and apparatus to continuously manufacture red lead which is a primary material to produce storage batteries, anti-corrosion paint, glass, etc. In this method, lead monoxide and metal lead powder are continuously supplied from an inlet of rotating inner cylinder which acts as a reaction chamber of rotary kiln, and said powder mixture is proceeded toward the outlet of kiln while it is oxidized into red lead. The yield of red lead and the stable oxidation of raw material into red lead can be accomplished by returning a part of product powder available at the outlet to the inlet of kiln.

    摘要翻译： 本发明涉及连续制造红铅的方法和装置，它是生产蓄电池，防腐涂料，玻璃等的主要原料。在这种方法中，一氧化碳和金属铅粉末从旋转入口 作为回转窑的反应室的内筒，并且所述粉末混合物在氧化成红色铅时朝向窑出口进行。 红铅的产率和原料稳定氧化成红铅可以通过将出口处可获得的一部分产品粉末返回到窑入口来实现。

    RECOVERY OF LEAD IN FORM OF HIGH PURITY LEAD CARBONATES FROM SPENT LEAD BATTERIES INCL. ELECTRODE PASTE
    9.
    发明公开
    RECOVERY OF LEAD IN FORM OF HIGH PURITY LEAD CARBONATES FROM SPENT LEAD BATTERIES INCL. ELECTRODE PASTE 审中-公开
    在形式上，高纯碳酸铅从废铅酸蓄电池铅回收或 电极糊

    公开(公告)号：EP2111470A1

    公开(公告)日：2009-10-28

    申请号：EP08720192.7

    申请日：2008-01-15

    申请人： Millbrook Lead Recycling Technologies Limited

    发明人： MARTINI, Federica

    IPC分类号： C22B13/00 ,  C22B7/00 ,  C01G1/14 ,  H01M10/54

    CPC分类号： C22B13/045 ,  C01G21/02 ,  C01G21/14 ,  C22B3/165 ,  C22B7/007 ,  H01M6/52 ,  H01M10/06 ,  H01M10/54 ,  Y02P10/234 ,  Y02W30/84

    摘要： Wet process of low environmental impact recovers the lead content of an electrode slime and/or of lead minerals in the valuable form of high purity- lead carbonates that are convertible to highly pure lead oxide by heat treatment in oven at relatively low temperature, perfectly suited for making active electrode pastes of new batteries or other uses. The process basically comprises the following steps: a) adding sulphuric acid to a different acid leach suspension of the starting impure material for converting all dissolved lead compounds to insoluble lead sulphate; b) separating the solid phase constituted by lead sulphate and undissolved impurities from the acid leach solution; c) selectively dissolving lead sulphate contained in said separated solid phase in an aqueous solution of a lead solubilizing compound comprising preferably sodium acetate; d) separating the solution containing dissolved lead sulphate from the solid phase residue including undissolved impurities; e) adding to the separated solution of lead sulphate a carbonate of the same cation of said dissolving compound for forming insoluble lead carbonate and/or and lead oxycarbonate and a dissolved sulphate of the same cation; f) separating the precipitated carbonate and/or oxycarbonate of lead from the dissolving solution now containing also sulphate of the cation of said solubilizing compound.