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    PROCESS AND REACTOR FOR THE PLASMOGENIC EXTRACTION OF ALUMINA AND BY-PRODUCTS FROM BAUXITE
    2.
    发明申请
    PROCESS AND REACTOR FOR THE PLASMOGENIC EXTRACTION OF ALUMINA AND BY-PRODUCTS FROM BAUXITE 审中-公开
    氧化铝和副产品从BAUXITE中的PLASMOGENIC萃​​取的工艺和反应器

    公开(公告)号：WO2012117430A1

    公开(公告)日：2012-09-07

    申请号：PCT/IT2012/000059

    申请日：2012-02-28

    Applicant: ECOTEC GESTIONE IMPIANTI S.R.L. ,  IMERITO, Aldo

    Inventor： IMERITO, Aldo

    IPC: B01J19/08 ,  B09B3/00 ,  C01F7/02 ,  C01F7/38

    CPC classification number: C01F7/02 ,  B09B3/005 ,  C01F7/38

    Abstract: A process and a plasma reactor, for the transformation by plasmogenic way of bauxite - occurring combined aluminium in high degree purity alumina, are the subject of the present invention. Thus obtainable are alumina and by-products, each of which is enriched in one of the main other valuable bauxite occurring elements/compounds (titanium, iron, silica), to be sent to the respective reference market. Accordingly the proportion of material to be handled as true waste is drastically reduced. Said process represents an alternative to the Bayer process for the alumina production from bauxite, in the process of the invention the production of refused and waste materials compared to the Bayer process, is lowered and the environmental impact is reduced too. A block diagram of the process of the invention, according to a specific embodiment thereof in arc transferred plasma reactor, is shown in

    Abstract translation: 本发明的主题是用于通过铝土矿发生的组合铝在高纯度氧化铝中通过等离子体发生方式进行转化的方法和等离子体反应器。 因此可获得的氧化铝和副产物富含其它一些主要的其他有价值的铝土矿发生元素/化合物（钛，铁，二氧化硅），被送到各自的参考市场。 因此，作为真正废物处理的材料的比例大大降低。 所述方法代表了用于从铝土矿生产氧化铝的拜耳方法的替代方案，在本发明的方法中，与拜耳法相比，生产被拒绝和废弃的材料被降低并且环境影响也降低。 在本发明的方法中，根据其在电弧转移等离子体反应器中的具体实施方案的框图

    PROCESS FOR THE PREPARATION OF A CONCENTRATE OF METALS, RARE METALS AND RARE EARTH METALS FROM RESIDUES OF ALUMINA PRODUCTION BY BAYER PROCESS OR FROM MATERIALS WITH A CHEMICAL COMPOSITION SIMILAR TO SAID RESIDUES, AND REFINEMENT OF THE CONCENTRATE SO OBTAINED
    3.
    发明申请
    PROCESS FOR THE PREPARATION OF A CONCENTRATE OF METALS, RARE METALS AND RARE EARTH METALS FROM RESIDUES OF ALUMINA PRODUCTION BY BAYER PROCESS OR FROM MATERIALS WITH A CHEMICAL COMPOSITION SIMILAR TO SAID RESIDUES, AND REFINEMENT OF THE CONCENTRATE SO OBTAINED 审中-公开
    从采用拜耳法生产氧化铝的残余物或从化学成分类似于残余物的材料中制备金属，稀有金属和稀土金属的浓缩物的方法以及由此获得的精矿的精炼

    公开(公告)号：WO2018069945A1

    公开(公告)日：2018-04-19

    申请号：PCT/IT2017/000213

    申请日：2017-10-03

    Applicant: ECOTEC GESTIONE IMPIANTI S.R.L.

    Inventor： IMERITO, Aldo

    IPC: C22B1/00 ,  C22B7/00 ,  C22B59/00

    Abstract: Multistage process for the preparation of a concentrate of metals, rare metals and rare earth metals from residues of alumina production by Bayer process (red mud), or from materials with a chemical composition similar to red mud, and multistage process for separating the elements of interest, transforming them into single products to be re-used in the Bayer process and/or sending them to the respective reference markets. The sole figure appended shows the simplified block diagram of the invention, in terms of its most extensive definition.

    Abstract translation: 通过拜耳法生产氧化铝残渣（红泥）或化学组成类似于赤泥的材料制备金属，稀有金属和稀土金属的浓缩物的多阶段方法， 以及用于分离感兴趣的要素的多阶段流程，将其转化为单一产品，以便在拜耳流程中重新使用和/或将它们发送到各自的参考市场。 根据其最广泛的定义，所附的唯一附图显示了本发明的简化框图。

    PROCESS FOR EXTRACTION OF SULPHUR AND METALS, IN OXIDE FORM, USABLE IN THE WAELTZ PROCESS, FROM MUDS CONTAINING COMPOUNDS OF SULPHUR AND SAID METALS
    4.
    发明申请
    PROCESS FOR EXTRACTION OF SULPHUR AND METALS, IN OXIDE FORM, USABLE IN THE WAELTZ PROCESS, FROM MUDS CONTAINING COMPOUNDS OF SULPHUR AND SAID METALS 审中-公开
    在WAELTZ工艺中可用于硫化物和金属的氧化物形式的提取方法，含有硫化物和固体金属的化合物

    公开(公告)号：WO2014162322A2

    公开(公告)日：2014-10-09

    申请号：PCT/IT2014/000088

    申请日：2014-03-31

    Applicant: ECOTEC GESTIONE IMPIANTI S.R.L.

    Inventor： IMERITO, Aldo

    CPC classification number: C22B1/00 ,  C22B1/02

    Abstract: The subject of the present invention is a process for the extraction of sulphur and metals, in oxide form, usable in the Waeltz process, from muds containing compounds of sulphur and of said metals, for example from muds of substances chemically similar to goethite and jarosite. In Figure 1 a flow-chart of an embodiment of the process according to the invention is shown.

    Abstract translation: 本发明的主题是从含有硫化合物和所述金属的泥浆中提取氧化物形式的氧化物形式的硫和金属的方法，例如从化学上类似于针铁矿和黄钾铁矾的物质的泥浆中提取硫和金属 。 在图1中，示出了根据本发明的方法的实施例的流程图。

    PROCESS FOR THE SIMULTANEOUS TREATMENT OF RESIDUES OF THE NON-FERROUS METALLURGICAL INDUSTRY TO PRODUCE PIGMENTS BASED ON IRON OXIDES AND OTHER VALUED PRODUCTS, IN ACCORDANCE WITH CIRCULAR ECONOMY STRATEGIES
    5.
    发明申请
    PROCESS FOR THE SIMULTANEOUS TREATMENT OF RESIDUES OF THE NON-FERROUS METALLURGICAL INDUSTRY TO PRODUCE PIGMENTS BASED ON IRON OXIDES AND OTHER VALUED PRODUCTS, IN ACCORDANCE WITH CIRCULAR ECONOMY STRATEGIES 审中-公开

    公开(公告)号：WO2022003747A1

    公开(公告)日：2022-01-06

    申请号：PCT/IT2021/050209

    申请日：2021-07-05

    Applicant: ECOTEC GESTIONE IMPIANTI S.R.L.

    Inventor： IMERITO, Aldo ,  RAGONA, Mario ,  PISU, Massimo ,  AZARA, Pierandrea

    IPC: C22B1/06 ,  C22B11/00 ,  C22B7/02 ,  C22B7/04 ,  C22B47/00 ,  C22B11/044

    Abstract: Described is a process for the simultaneous treatment of residues of the non-ferrous metallurgical industry, in particular Waelz slag and residues deriving from thermal fuming processes of jarosite, goethite or KSS slag, comprising the following steps: - possible initial pre-treatment (A) of the material to be treated, to obtain homogeneous particle size characteristics; - thermal pre-treatment (B) by the addition of ammonium sulphate (or nitric acid and/or sulphuric acid mixed with ammonium sulphate or with another reagent capable of promoting a reaction with the Waelz slag which makes it possible to obtain firstly the formation of the reaction intermediate ammonium hydrogen sulphate, (NH4)HSC>4 and, subsequently and in sequence, the formation of soluble iron and manganese sulphates and the development of ammonia) and gradual increase in temperature from ambient temperature to a final temperature in the range 200 °C to 600 °C, in a neutral/oxidising environment, to obtain the conversion of the iron, and manganese if present in the material, into compounds such as iron sulphates, and, possibly, manganese sulphates, soluble in water, with the formation of ammonia; and - hydrometallurgical treatments (C), according to the following sub- steps: - addition of water and mixing, - correction of acidity up to a pH of 2 to 8 in an oxidising environment, to obtain the precipitation of the iron in the form of mixed oxyhydroxides. The invention also relates to the use of the precipitate thus obtained, after separating from the solution and purification, for the production of pigments based on iron oxide.

    METHOD FOR THE TREATMENT OF RESIDUES FROM THE ZINC AND LEAD PRODUCTION INDUSTRY, WITH OBTAINMENT OF EXPLOITABLE PRODUCTS AND SECONDARY RAW MATERIALS, ACCORDING TO THE STRATEGIES OF THE CIRCULAR ECONOMY
    7.
    发明申请
    METHOD FOR THE TREATMENT OF RESIDUES FROM THE ZINC AND LEAD PRODUCTION INDUSTRY, WITH OBTAINMENT OF EXPLOITABLE PRODUCTS AND SECONDARY RAW MATERIALS, ACCORDING TO THE STRATEGIES OF THE CIRCULAR ECONOMY 审中-公开

    公开(公告)号：WO2022190153A1

    公开(公告)日：2022-09-15

    申请号：PCT/IT2022/050049

    申请日：2022-03-10

    Applicant: ECOTEC GESTIONE IMPIANTI S.R.L.

    Inventor： IMERITO, Aldo ,  PISU, Massimo ,  RAGONA, Mario ,  AZARA, Pierandrea ,  MALAFRONTE, Francesca ,  CASULA, Arianna ,  MAMELI, Anna

    IPC: C22B1/02 ,  C22B7/00 ,  C22B11/00 ,  C22B3/00 ,  C22B19/30

    Abstract: The present invention concerns a method for the treatment of jarosite and other residues (1) of the zinc and lead production industry, including the following steps: thermal treatment (10) of the residues (1), at a temperature between 500 °C and 700 °C, to obtain the evaporation of the imbibition water and the demolition of the jarosite molecule, resulting in the development of SOa and in the removal of OH" groups to give additional water in the gaseous phase, and resulting in the obtainment, from the recondensation of these components, of an aqueous solution (12) of diluted sulfuric acid, and with the simultaneous formation of a solid fraction (11) composed of iron (111) oxide, zinc, lead, silver, copper sulphates and other minor elements; acid leaching (20) of said solid fraction (11) obtained from said thermal treatment step, by adding an acid leaching solution (19), to obtain an acid flow (21) containing a solution of zinc, copper and silver sulphates, and a solid fraction (22) enriched in iron oxides, lead sulphate and silver sulphate; saline leaching (30) of said solid fraction (22) obtained from said acid leaching step (20), to obtain a saline solution (31) containing lead and silver and a solid fraction (32) enriched in iron(lll) oxide and containing silica; refining treatment (40) of the saline solution (31) containing lead and silver obtained from said saline leaching step (30); and purification (50) of the silica of the solid fraction (32) enriched in iron (111) oxide and containing silica obtained from said saline leaching step (30), by using an acid solution, to obtain solubilization of iron(lll); separation of the solubilized iron(lll) from the silica, which remains insolubilized; precipitation of iron(lll) to obtain iron oxide pigment.

    A METHOD FOR PRODUCING A CONCENTRATE CONTAINING METAIS, RARE METALS AND RARE EARTH METALS FROM RESIDUALS GENERATED IN THE ZINC PRODUCTION CHAIN AND CONCENTRATE OBTAINED BY SAID METHOD
    8.
    发明申请
    A METHOD FOR PRODUCING A CONCENTRATE CONTAINING METAIS, RARE METALS AND RARE EARTH METALS FROM RESIDUALS GENERATED IN THE ZINC PRODUCTION CHAIN AND CONCENTRATE OBTAINED BY SAID METHOD 审中-公开
    一种由锌生成链中产生的残余物和通过所述方法获得的残余物生产含有元素，稀有金属和稀土金属的浓缩物的方法

    公开(公告)号：WO2017064735A1

    公开(公告)日：2017-04-20

    申请号：PCT/IT2016/000210

    申请日：2016-09-13

    Applicant: ECOTEC GESTIONE IMPIANTI S.R.L.

    Inventor： IMERITO, Aldo

    IPC: C22B1/00 ,  C22B1/02 ,  C22B7/00 ,  C22B13/02 ,  C22B19/30 ,  C22B41/00 ,  C22B58/00

    CPC classification number: C22B1/005 ,  C22B1/02 ,  C22B7/001 ,  C22B13/025 ,  C22B19/30 ,  C22B41/00 ,  C22B58/00 ,  Y02P10/214

    Abstract: Method for the production by thermal way of a concentrated solid - substantially iron free - enriched in contents of indium, germanium, zinc, silver, lead and possibly other metals, starting from the residuals generated in the zinc production chain, such as jarositic and/or goethitic sludge and/or mixed sludges from the zinc extraction processes by direct leaching, with the simultaneous production of an iron alloy with chemical composition from cast iron to alloy steel and of an inert product with physical structure from vitrified amorphous to crystallized ceramic. Figure 1 represents a simplified and qualitative block diagram of one embodiment of the method according to the invention.

    Abstract translation: 通过热方式生产富含铟，锗，锌，银，铅和可能的其他金属的浓缩固体 - 基本上不含铁的 - 从锌中产生的残余物开始生产的方法 生产链，例如通过直接浸出锌提取工艺的黄钾铁矾和/或针铁矿污泥和/或混合污泥，同时生产具有从铸铁到合金钢的化学成分的铁合金以及具有物理结构的惰性产品 从玻璃化的无定形陶瓷到结晶陶瓷。 图1表示根据本发明的方法的一个实施例的简化和定性框图。

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