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    METHOD FOR PROCESSING ZINC OXYCHLORIDE-CONTAINING SECONDARY MATERIAL
    1.
    发明公开
    METHOD FOR PROCESSING ZINC OXYCHLORIDE-CONTAINING SECONDARY MATERIAL 有权
    含锌的含氧化物辅助材料的处理方法

    公开(公告)号：EP3165616A1

    公开(公告)日：2017-05-10

    申请号：EP14896593.2

    申请日：2014-07-03

    申请人： Yunnan Xiangyunfeilong Resources Recycling Technology Co., Ltd

    发明人： SHU, Yuzhang ,  ZHANG, Qi ,  YANG, Guifen ,  SUN, Baohua ,  WEI, Linkui

    IPC分类号： C22B3/26 ,  C22B19/30 ,  C22B7/02

    CPC分类号： C22B26/10 ,  C22B3/005 ,  C22B7/007 ,  C22B19/22 ,  C22B19/30 ,  C25C1/16 ,  Y02P10/234

    摘要： The invention discloses a treatment method of a chlorine-containing zinc oxide secondary material, which comprises the following steps: 1) leaching the chlorine-containing zinc oxide secondary material I through an acid solution; 2) selectively extracting zinc through P204-kerosene solvent; 3) implementing stripping-electrolysis zinc recovery; 4) repeating steps 1)-4); 5) taking out the raffinate obtained from the Step (4), mixing the residual taken out raffinate with chlorine-containing zinc oxide secondary material II when balance on chlorine ion input and taking out is achieved; carrying out liquid-solid separation; leaching the separated deposit through acid raffinate of the step 1); 6) after separated solution achieves preset conditions, purifying the chlorine-containing aqueous phase; 7) evaporating and concentrating to crystallize out KCI and NaCl products. The invention is environment- friendly and energy-saving, and free from process wastewater emission; production cost is greatly reduced and secondary pollution of the currentdechloridation process is eliminated thoroughly.

    摘要翻译： 本发明公开了一种含氯氧化锌辅助材料的处理方法，包括以下步骤：1）通过酸溶液浸出含氯氧化锌辅助材料I; 2）通过P204-煤油溶剂选择性提取锌; 3）实施汽提 - 电解锌回收; 4）重复步骤1）-4）; 5）取出步骤（4）得到的萃余液，将取出的萃余液与含氯氧化锌辅助材料II混合，待氯离子输入和取出达到平衡后， 进行液固分离; 通过步骤1）的酸提余液浸提分离的沉积物; 6）分离后的溶液达到预设条件后，净化含氯水相; 7）蒸发浓缩结晶出KCl和NaCl产品。 本发明环保节能，免受工艺废水排放; 大大降低了生产成本，彻底杜绝了目前氯化工艺的二次污染。

    HYDROMETALLURGICAL METHOD FOR RECOVERING ZINC IN A SULPHURIC MEDIUM FROM ZINC SULPHIDE CONCENTRATES HAVING A HIGH IRON CONTENT
    2.
    发明公开
    HYDROMETALLURGICAL METHOD FOR RECOVERING ZINC IN A SULPHURIC MEDIUM FROM ZINC SULPHIDE CONCENTRATES HAVING A HIGH IRON CONTENT 审中-公开
    HYDRO冶金工艺用于在介质中的硫酸硫化锌OBTAINING锌铁含量高精矿

    公开(公告)号：EP2730667A4

    公开(公告)日：2015-04-29

    申请号：EP12852449

    申请日：2012-07-16

    申请人： TAM 5 S L

    发明人： TAMARGO GARCÍA FRANCISO JOSÉ

    IPC分类号： C22B19/20 ,  C22B1/02 ,  C22B3/00

    CPC分类号： C01G9/02 ,  C22B19/02 ,  C22B19/22 ,  C22B19/26 ,  Y02P10/234

    摘要： This method is based in the recirculation of an iron free solution or a solution with low iron content in such a manner that the final acidity conditions obtained are ideal for iron to efficiently precipitate as jarosite. In a variation of the invention the zinc concentrate is subjected to the following stages: a. Roasting of at least part of the zinc concentrate. b. Neutral leaching where zinc oxide is dissolved. c. Acid leaching where zinc ferrites are leached. d. Reduction of the Fe +++ contained in the solution to Fe ++ by adding zinc concentrate and diluting it with a zinc sulphate solution resulting from stage (f) to lower the concentration of Fe ++ . e. Neutralizing the acidity in the solution with calcine. h. Iron oxidation and jarosite precipitation, free of contaminating solids, by means of the injection of oxygen or oxygen-enriched air and the addition of an alkali or a Na + o NH4 + salt.

    PROCEDE DE VALORISATION DE RESIDUS RICHES EN ZINC ET EN SULFATES
    7.
    发明公开
    PROCEDE DE VALORISATION DE RESIDUS RICHES EN ZINC ET EN SULFATES 审中-公开
    PROCESS恢复废料，含有丰富的锌，硫酸ARE

    公开(公告)号：EP2160481A1

    公开(公告)日：2010-03-10

    申请号：EP08750106.0

    申请日：2008-05-06

    申请人： PAUL WURTH S.A.

    发明人： ROTH, Jean-Luc ,  BONTEMPS, Marie

    IPC分类号： C22B19/00

    CPC分类号： C22B7/002 ,  C22B1/04 ,  C22B5/10 ,  C22B5/16 ,  C22B19/22 ,  C22B19/30 ,  Y02P10/214 ,  Y02P10/232 ,  Y02P10/234

    摘要： The invention relates to a method for processing residue containing zinc ferrites and nonferrous metals selected from the group comprising lead (Pb), silver (Ag), indium (In), germanium (Ge) and gallium (Ga) or mixtures thereof in the form of oxides or sulphates, that comprises the following steps: grilling the residue at high temperature in an oxidant medium in order to obtain a desulphurised residue; carbiding reduction-fusion of the desulphurised residue in a reducing medium; liquid phase extraction of carbide cast iron and slag; vapour-phase extraction of the nonferrous metals followed by the oxidation thereof and their recovery in a solid form.

    Method and apparatus for leaching zinc concentrates
    9.
    发明公开
    Method and apparatus for leaching zinc concentrates 有权
    Verfahren und Vorrichtung zur Laugung von Zinkkonzentraten

    公开(公告)号：EP1245686A2

    公开(公告)日：2002-10-02

    申请号：EP02002172.1

    申请日：2002-01-29

    申请人： Dowa Mining Co., Ltd.

    发明人： Kanno, Manabu ,  Watanabe, Yoshiyuki ,  Saruta, Kaoru ,  Narumi, Akira

    IPC分类号： C22B3/08 ,  C22B19/00 ,  C22B1/00

    CPC分类号： C22B3/08 ,  C22B19/22 ,  Y02P10/234

    摘要： In one method, a zinc concentrate is leached as elemental sulfur and other by-products are stripped from the surfaces of the particles in the concentrate by means of a grinding machine such as a ball mill. The ferric ion consumed by leaching is regenerated for recycled use by introducing oxygen into the post-leaching solution flowing through feed pipes. This method can shorten the leach time by a substantial degree.
    In another leaching method, a solution containing free sulfuric acid and ferrous ions and a zinc concentrate are charged into an autoclave having a pressurized atmosphere and as oxygen gas is supplied, the internal temperature is adjusted between 90 °C and 120 °C, whereby the ferrous ion in the solution is oxidized to increase the ferric ion concentration to 2 - 60 g/L whereas pressurized leaching of the zinc concentrate is performed simultaneously. Following this one-step oxidative leaching process, the resulting slurry is subjected to a grinding/leaching step in which by-product elemental sulfur is stripped from the surfaces of the particles in the leached zinc concentrate and, thereafter, the slurry from the grinding/leaching step is subjected to another pressurized leaching step.

    摘要翻译： 在一种方法中，将锌精矿作为元素硫浸出，并且通过诸如球磨机的研磨机将精矿中的颗粒的表面从其中除去其它副产物。 通过将氧气引入流过进料管的后浸出溶液中，通过浸出消耗的铁离子再生再循环使用。 这种方法可以在很大程度上缩短浸出时间。 在另一种浸出方法中，将含有游离硫酸和亚铁离子和锌精矿的溶液装入具有加压气氛的高压釜中，并且当供应氧气时，将内部温度调节在90℃和120℃之间 从而氧化溶液中的亚铁离子以将铁离子浓度增加至2-60g / L，同时进行锌精矿的加压浸出。 在该一步氧化浸出方法之后，对所得浆料进行研磨/浸出步骤，其中副产物元素硫从浸出的锌精矿中的颗粒的表面剥离，然后从研磨/ 对浸出步骤进行另一个加压浸出步骤。