RECOVERY OF NON-FERROUS METALS FROM BY-PRODUCTS OF THE ZINC AND LEAD INDUSTRY USING ELECTRIC SMELTING WITH SUBMERGED PLASMA
    1.
    发明申请
    RECOVERY OF NON-FERROUS METALS FROM BY-PRODUCTS OF THE ZINC AND LEAD INDUSTRY USING ELECTRIC SMELTING WITH SUBMERGED PLASMA 审中-公开
    通过使用电子等离子体处理电镀来恢复非金属从锌和铅工业的副产品中恢复

    公开(公告)号:WO2008052661A1

    公开(公告)日:2008-05-08

    申请号:PCT/EP2007/009023

    申请日:2007-10-18

    Abstract: This invention relates to a single-step pyrometallurgical process for the recovery of non-ferrous metals from zinc bearing residues, in particular from by-products of the zinc and lead industry such as goethite and jarosite. A process for the recovery of metals from industrial Zn residues containing Zn, Fe and S is defined, wherein Zn is fumed, Fe is slagged, and S is oxidized to SO 2 , characterized in that the Zn fuming, the Fe slagging, and the S oxidation are performed in a single step process, by smelting the residues in a furnace comprising at least one submerged plasma torch generating an oxidizing gas mixture, and by feeding a solid reducing agent to the melt. The process achieves the oxidation of S and the slagging of Fe, while simultaneously achieving the reduction and the fuming of metals such as Zn.

    Abstract translation: 本发明涉及用于从含锌残留物,特别是锌和铅工业的副产物如针铁矿和黄钾铁矾中回收有色金属的单步火法冶金方法。 定义了从含有Zn,Fe和S的工业Zn残余物中回收金属的方法,其中Zn是热解的,Fe被排渣,S被氧化成SO 2,其特征在于Zn发烟 通过在包含至少一个产生氧化性气体混合物的浸没式等离子体焰炬的炉子中熔化残渣,并且通过将熔体中的固体还原剂进料,在单步骤中进行Fe成渣和S氧化。 该工艺实现了S的氧化和Fe的成渣,同时实现了诸如Zn的金属的还原和发烟。

    FURNACE FLUE DUST PROCESSING METHOD
    3.
    发明申请
    FURNACE FLUE DUST PROCESSING METHOD 审中-公开
    FURNACE FLUE DUST加工方法

    公开(公告)号:WO01098547A2

    公开(公告)日:2001-12-27

    申请号:PCT/US2001/019549

    申请日:2001-06-19

    CPC classification number: C22B7/02 C22B5/10 C22B19/28 Y02P10/212 Y10S75/951

    Abstract: A method of processing flue dust that contains one or more compounds from a first group of zinc, lead and cadmium compounds, and contains iron compounds, involves heating the flue dust to cause a substantial portion of one or more of the compounds of the first group to become gas-borne. A carbonaceous material is introduced to the remaining flue dust, and the flue dust/carbonaceous material mixture is heated to cause a substantial portion of the remaining compounds from the first group to become gas-borne while retaining a substantial portion of the iron in a non-gas-borne condition. The gas-borne compounds are separated from the non-gas-borne compounds.

    Abstract translation: 一种处理含有来自第一组锌,铅和镉化合物的一种或多种化合物并含有铁化合物的烟道灰尘的方法包括加热烟道灰尘以使第一组中的一种或多种化合物的大部分 成为天然气。 将碳质材料引入剩余的烟道灰尘中,并且将烟道尘埃/碳质材料混合物加热,以使来自第一组的剩余化合物的大部分变成气体载体,同时将大部分铁保持在非 - 气体条件 气体化合物与非气相化合物分离。

    METHOD FOR UTILIZING PH CONTROL IN THE RECOVERY OF METAL AND CHEMICAL VALUES FROM INDUSTRIAL WASTE STREAMS
    4.
    发明申请
    METHOD FOR UTILIZING PH CONTROL IN THE RECOVERY OF METAL AND CHEMICAL VALUES FROM INDUSTRIAL WASTE STREAMS 审中-公开
    在工业废水回收金属和化学值中使用PH控制的方法

    公开(公告)号:WO98048066A1

    公开(公告)日:1998-10-29

    申请号:PCT/US1998/007880

    申请日:1998-04-17

    Abstract: An improved method for the recovery of metal and/or chemical values from an industrial waste stream containing zinc, cadmium, lead and/or iron compounds by heating the waste stream in a reducing atmosphere, treating the resultant fumes in an ammonium chloride solution, separating any undissolved components from the solution, adjusting the pH of the solution, if necessary, to less than about 6.3, displacing undesired metal ions from the solution using zinc metal, treating the solution to remove therefrom zinc compounds, adjusting the pH of the solution to about 6.5 to about 7.0, and further treating the zinc compounds and the undissolved components, as necessary, resulting in the zinc products and the optional iron-carbon feedstock.

    Abstract translation: 一种用于通过在还原气氛中加热废物流从含有锌,镉,铅和/或铁化合物的工业废物流中回收金属和/或化学值的改进方法,将所得烟雾在氯化铵溶液中分离,分离 任何未溶解的组分,如果需要,将溶液的pH调节至小于约6.3,用锌金属从溶液中取代不想要的金属离子,处理溶液以除去锌化合物,将溶液的pH调节至 约6.5至约7.0,并且根据需要进一步处理锌化合物和未溶解的组分,导致锌产物和任选的铁 - 碳原料。

    RECOVERY OF CHEMICAL VALUES FROM INDUSTRIAL WASTES
    5.
    发明申请
    RECOVERY OF CHEMICAL VALUES FROM INDUSTRIAL WASTES 审中-公开
    从工业废物中回收化学值

    公开(公告)号:WO1995030626A1

    公开(公告)日:1995-11-16

    申请号:PCT/US1995001900

    申请日:1995-02-10

    Abstract: A method for the recovery of chemical values, such as metals including zinc, zinc oxide, iron-carbon feedstocks, lead and cadmium, from industrial waste streams which entails treating the waste streams with carbon and an ammonium chloride solution, separating any undissolved components from the solution, displacing metal ions including lead and cadmium from the solution using zinc metal, further treating the solution to remove zinc compounds therefrom, further treating the zinc compounds and the undissolved components with a dissolving solution, and further treating the displaced metal ions to recover lead, cadmium and zinc therein using various methods including electrolysis.

    Abstract translation: 从工业废物流中回收化学值的方法,例如锌,锌氧化物,铁 - 碳原料,铅和镉等金属,这些金属需要用碳和氯化铵溶液处理废物流,将任何未溶解的组分从 溶液中,使用锌金属从溶液中移出包括铅和镉的金属离子,进一步处理溶液以除去锌化合物,用溶解溶液进一步处理锌化合物和未溶解的组分,并进一步处理置换的金属离子以回收 铅,镉和锌,使用各种方法,包括电解。

    A METHOD AND USE OF AN APPARATUS FOR RECOVERY OF METALS OR METAL COMPOUNDS
    7.
    发明申请
    A METHOD AND USE OF AN APPARATUS FOR RECOVERY OF METALS OR METAL COMPOUNDS 审中-公开
    用于金属或金属化合物回收的装置的方法和用途

    公开(公告)号:WO2006041394A1

    公开(公告)日:2006-04-20

    申请号:PCT/SE2005/001506

    申请日:2005-10-11

    CPC classification number: C22B19/34 C22B5/16 C22B7/02 C22B19/28 Y02P10/212

    Abstract: A method for recovery of metals or metal compounds from metal-bearing solid particles comprising volatile compounds comprises supplying the solid particles (50) through a flame (25) of a burner (20). The volatile compounds are then evaporated by means of heat from the flame (25) while maintaining the original shape and state of aggregate of the solid particles, thereby providing a raw material product (34). The raw material product (34) is then recovered. By feeding the solid particles directly to the flame, a compact and efficient plant is provided. The melting process can be controlled in a satisfying way, avoiding melting of the metal-bearing solid particles supplied through the burner. The use of a burner is also described.

    Abstract translation: 包含挥发性化合物的含金属固体颗粒回收金属或金属化合物的方法包括通过燃烧器(20)的火焰(25)供应固体颗粒(50)。 然后通过来自火焰(25)的热量蒸发挥发性化合物,同时保持固体颗粒的原始形状和聚集体的状态,由此提供原料产物(34)。 然后回收原料产品(34)。 通过将固体颗粒直接供给到火焰中,提供了紧凑且高效的装置。 可以以令人满意的方式控制熔融过程,避免熔化通过燃烧器供应的含金属固体颗粒。 还描述了使用燃烧器。

    PROCESS AND APPARATUS FOR RECOVERY OF NON-FERROUS METALS FROM ZINC RESIDUES
    8.
    发明申请
    PROCESS AND APPARATUS FOR RECOVERY OF NON-FERROUS METALS FROM ZINC RESIDUES 审中-公开
    从金属残渣中回收非金属金属的工艺和装置

    公开(公告)号:WO2005031014A1

    公开(公告)日:2005-04-07

    申请号:PCT/EP2004/009685

    申请日:2004-08-30

    Abstract: The invention relates to a process for the separation and recovery of non-ferrous metals from zinc-bearing residues, in particular from residues produced by the zinc manufacturing industry. The process comprises the steps of: - subjecting the residue to a flash or agitated bath fuming step, thereby producing an Fe bearing slag and Zn- and Pb-bearing fumes; and - extracting the Zn- and Pb-bearing fumes and valorising Zn and Pb; characterised in that CaO, SiO 2 and MgO are added as a flux before or during the fuming step so as to obtain a final slag composition with: formula (I) all concentrations being expressed in wt%. The invention also relates to a single-chamber reactor for Zn-fuming equipped with one or more submerged plasma torches as heat and gas sources.

    Abstract translation: 本发明涉及从含锌残留物,特别是由锌制造业生产的残余物中分离和回收有色金属的方法。 该方法包括以下步骤: - 将残余物进行闪蒸或搅拌的发烟步骤,从而产生含铁渣和含Zn和Pb的烟雾; 并且 - 提取含Zn和Pb的烟雾和加钒Zn和Pb; 其特征在于,在发烟步骤之前或期间,以CaO,SiO 2和MgO的形式加入CaO,以获得最终的炉渣组成:式(I)所有浓度均以重量%表示。 本发明还涉及一种装有一个或多个浸没式等离子炬作为热源和气源的Zn发烟单室反应器。

    RECOVERY OF NON-FERROUS METALS FROM ZINC RESIDUES
    9.
    发明申请
    RECOVERY OF NON-FERROUS METALS FROM ZINC RESIDUES 审中-公开
    从金属残渣中回收非金属金属

    公开(公告)号:WO2005005674A1

    公开(公告)日:2005-01-20

    申请号:PCT/EP2004/006238

    申请日:2004-06-08

    Abstract: The invention relates to a process for the separation and recovery of non-ferrous metals from zinc-bearing residues, in particular from residues produced by the zinc manufacturing industry. The process allows for the valorisation of metal values in a Zn-, Fe- and Pb-bearing residue, and comprises the steps of: -subjecting the residue to a direct reduction step, thereby producing a metallic Fe-bearing phase and Zn- and Pb-bearing first fumes; - extracting the Zn- and Pb-bearing first fumes and valorising Zn and Pb; - subjecting the metallic Fe-bearing phase to an oxidising smelting step, thereby producing an Fe-bearing slag and second metals-bearing fumes; - extracting the second metals-bearing fumes and valorising at least part of their metallic content. The main advantage of this process is that an environmentally acceptable output for Fe is obtained.

    Abstract translation: 本发明涉及从含锌残留物,特别是由锌制造业生产的残余物中分离和回收有色金属的方法。 该方法允许在含Zn,Fe和Pb的残余物中金属值的增值,并且包括以下步骤: - 将残余物进行直接还原步骤,由此产生金属Fe-相和Zn-和 含Pb的第一烟; - 提取含Zn和Pb的第一烟和钒和铅的增值; - 使金属含Fe相进行氧化冶炼步骤,从而产生含铁渣和第二含金属烟雾; - 提取第二个带有金属的烟雾和至少部分金属含量。 该方法的主要优点是获得了一种环境可接受的Fe产量。

    PRODUCTION PROCESS TO OBTAIN PRECIOUS METALS ESPECIALLY ZINC FROM RAW MATERIALS CONTAINING CHLORINE OR FLUORINE
    10.
    发明申请
    PRODUCTION PROCESS TO OBTAIN PRECIOUS METALS ESPECIALLY ZINC FROM RAW MATERIALS CONTAINING CHLORINE OR FLUORINE 审中-公开
    一种获得价值金属,特别是锌,来自氯或含福陆原材料

    公开(公告)号:WO1998015666A1

    公开(公告)日:1998-04-16

    申请号:PCT/EP1997005463

    申请日:1997-10-06

    Inventor: RUHR-ZINK GMBH

    Abstract: The invention relates to a process for obtaining zinc and other precious metals from raw materials containing chlorine or fluorine. According to said process raw materials are lyed with sulfuric acid without calcination and metals are separated electrolytically from the purified metallic salt solution. This novel process is economical because it removes chlorines and fluorines by feeding milling oxides to an alkaline lye stage with soda at 120 DEG C and making the halogenides soluble in water, the dissolved halogenides are washed out with water from milling oxides, milling oxydes with a low content of halogenides are lyed in sulfuric acid or cellular acid, and metals are separated from the obtained solution by electrolysis after purification.

    Abstract translation: 本发明涉及用于锌和选自氯化物和含氟化物的原料等有价金属的回收方法,其中浸出而不与硫酸焙烧和金属被从所获得的纯化的盐水金属电解沉积。 该新方法是便宜的,因为进料至与碳酸钠的碱性浸出的威尔兹氧化物在120℃下以除去氯化物和氟化物和卤化物的呈现水溶性,溶解的卤化物与从Wälzoxiden用水洗涤指出halogenidarmen在硫酸或细胞酸威尔兹氧化物 是沥滤,并且金属通过电解从纯化后所得到的溶液沉积。

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