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    Method of concentrating silver from anode slime
    2.
    发明授权
    Method of concentrating silver from anode slime 失效
    从阳极泥中浓缩银的方法

    公开(公告)号：US4374098A

    公开(公告)日：1983-02-15

    申请号：US388986

    申请日：1982-06-16

    申请人： Toshimasa Iio ,  Toyokazu Ohkubo

    发明人： Toshimasa Iio ,  Toyokazu Ohkubo

    IPC分类号： C22B11/00 ,  C01G5/00 ,  C22B7/00 ,  C22B13/00 ,  C01G21/20

    CPC分类号： C22B11/04 ,  C22B13/045 ,  C22B7/006 ,  Y02P10/234

    摘要： A method of concentrating silver from anode slime which comprises reacting an intermediate product obtained by treatment of the slime, the intermediate product containing lead in sulfate form and silver in chloride form, with an aqueous solution of an alkali hydroxide or carbonate. The obtained reaction product is then subjected to solid-liquid separation, and the resulting residue is reacted with a nitric acid solution so that the lead therein may be separated into a filtrate, while the silver will remain in the residue.

    摘要翻译： 一种从阳极粘泥中浓缩银的方法，其中包括将通过处理粘土获得的中间产物，含硫酸盐形式的中间产物和氯化物形式的银与碱金属氢氧化物或碳酸盐的水溶液反应。 然后将得到的反应产物进行固液分离，所得残余物与硝酸溶液反应，使其中的铅分离成滤液，而银将残留在残余物中。

    Process for separating and recovering nickel and cobalt
    3.
    发明授权
    Process for separating and recovering nickel and cobalt 失效
    镍和钴分离回收方法

    公开(公告)号：US4004990A

    公开(公告)日：1977-01-25

    申请号：US495288

    申请日：1974-08-06

    申请人： Airi Suetsuna ,  Toshimasa Iio

    发明人： Airi Suetsuna ,  Toshimasa Iio

    IPC分类号： C22B3/28 ,  C22B3/44 ,  C22B23/00 ,  C25C1/08 ,  C22B3/00

    CPC分类号： C22B23/0423 ,  C22B23/005 ,  C22B3/0012 ,  C22B3/44 ,  C25C1/08 ,  Y02P10/234

    摘要： A process for separating and recovering nickel and cobalt is provided wherein a sulfide material containing cobalt and nickel is first oxidation-roasted to remove volatiles and to convert the metallic values into their oxides. These oxides are then dissolved in an aqueous solution of HCl. The solution of chloride salts thus produced is contacted with an extraction solvent comprising an admixture of trinormaloctylamine and xylene whereby the bulk of the cobalt along with the iron, copper and zinc impurities and a portion of the manganese impurities present in the original material are stripped by the extraction solvent while the bulk of the nickel and the remainder of the manganese impurities remain in the aqueous phase. The aqueous phase containing the nickel and manganese impurities is treated with chlorine gas and nickelous carbonate whereby the manganese is precipitated as manganese dioxide. The nickelous chloride solution is then subjected to electrolysis to produce metallic nickel. The extraction solvent containing the cobalt and iron, zinc, copper and manganese impurities is contacted with water in an extraction stage and the cobalt along with the manganese impurities and a portion of the copper impurities are stripped by the water while the iron and zinc impurities and a portion of the copper impurities remain in the extraction solvent. The water containing the cobalt and copper and manganese impurities is first treated with H.sub.2 S to precipitate the copper as copper sulfide and then with chlorine gas and cobaltous carbonate to precipitate the manganese as manganese dioxide. The remaining cobaltous chloride solution is then subjected to electrolysis to produce metallic cobalt.

    摘要翻译： 提供了分离和回收镍和钴的方法，其中首先对含有钴和镍的硫化物进行氧化焙烧以除去挥发物并将金属值转化为其氧化物。 然后将这些氧化物溶解在HCl的水溶液中。 将由此产生的氯化物盐溶液与包含三正辛胺和二甲苯的混合物的萃取溶剂接触，由此钴中的大部分以及原料中存在的铁，铜和锌杂质和一部分锰杂质被剥离 提取溶剂，而大部分镍和剩余的锰杂质保留在水相中。 含有镍和锰杂质的水相用氯气和碳酸镍处理，由此锰以二氧化锰沉淀。 然后将氯化镍溶液进行电解以制备金属镍。 含有钴，铁，铜，锰杂质的提取溶剂在萃取阶段与水接触，钴与锰杂质一部分，铜杂质的一部分被水分除去，而铁锌杂质和 一部分铜杂质残留在萃取溶剂中。 首先用H 2 S处理含有钴，铜和锰杂质的水，以铜硫化物沉淀铜，然后用氯气和碳酸钴将锰沉淀为二氧化锰。 然后将剩余的氯化钴溶液进行电解以产生金属钴。