会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 9. 发明申请
    • PROCESS FOR PRODUCING METALLIC LEAD STARTING FROM DESULFURIZED PASTEL
    • 从脱硫PASTEL生产金属铅起始的工艺
    • US20110083970A1
    • 2011-04-14
    • US12745067
    • 2008-11-27
    • Marco OlperCarmelita RoncaldierCarlo OlperLuigi OlperAlessandro OlperMassimo MaccagniSilvano Cossali
    • Marco OlperCarmelita RoncaldierCarlo OlperLuigi OlperAlessandro OlperMassimo MaccagniSilvano Cossali
    • C25C1/18C22B13/00
    • C22B13/045C22B7/008C25C1/18Y02P10/122Y02P10/234
    • The present invention relates to an electrolytic process for producing metallic lead starting from desulfurized lead pastel comprising the following operative phases: a) leaching the desulfurized pastel by putting it in contact with a solution comprising ammonium chloride, with the formation of a leach liquor and evolution of gaseous CO2; b) separating a first solid residue and a first clarified leach liquor from the leach liquor coming from phase a); c) leaching the solid residue separated in phase b) by putting it in contact with a solution comprising ammonium chloride and hydrogen peroxide; d) separating a second solid residue and a second clarified leach liquor from the leach liquor coming from phase c); e) joining the first clarified leach liquor coming from phase b) with the second clarified leach liquor coming from phase d) and forming a single solution; f) subjecting the solution leaving phase e) to electrolysis in a flow cell, with a current density ranging from 50 to 10,000 A/m2, said electrolysis resulting in the formation of a lead sponge. The present invention also relates to the relative desulfurization process of the pastel.
    • 本发明涉及一种用于从脱硫铅膏制备金属铅的电解方法,其包括以下操作阶段:a)通过将脱硫粉末与包含氯化铵的溶液接触,浸出脱硫粉末,形成浸出液并进行 的气态二氧化碳; b)从第一阶段a)的浸出液中分离出第一固体残余物和第一澄清浸出液; c)通过使其与包含氯化铵和过氧化氢的溶液接触来浸出在相b)中分离的固体残余物; d)从相c)的浸出液中分离出第二固体残渣和第二澄清浸出液; e)将来自相b)的第一澄清浸出液与来自相d)的第二澄清浸出液接合并形成单一溶液; f)使离开相e)的溶液在流动池中电解,电流密度范围为50至10,000A / m 2,所述电解导致形成铅海绵。 本发明还涉及到粉笔的相对脱硫工艺。