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    Method of selectively bringing into solution the non-ferrous metals contained in sulphurized ores and concentrates
    1.
    发明授权
    Method of selectively bringing into solution the non-ferrous metals contained in sulphurized ores and concentrates 失效
    有选择地将硫化矿石和浓缩物中含有的有色金属溶解在溶液中

    公开(公告)号：US4230487A

    公开(公告)日：1980-10-28

    申请号：US73438

    申请日：1979-09-07

    Applicant: Jean-Michel Demarthe ,  Louis Gandon ,  Andre Georgeaux

    Inventor： Jean-Michel Demarthe ,  Louis Gandon ,  Andre Georgeaux

    IPC: C22B43/00 ,  C22B3/00 ,  C22B3/04 ,  C22B3/10 ,  C22B11/00 ,  C22B13/00 ,  C22B15/00 ,  C22B19/20 ,  C22B13/04 ,  C22B15/08 ,  C22B19/22 ,  C22B23/04

    CPC classification number: C22B3/04 ,  C22B3/10 ,  Y02P10/234

    Abstract: The invention provides a method for selectively solubilizing the non-ferrous metals contained in sulphurized ores and concentrates, with regard to the iron and sulphur therein, by subjecting the ore or concentrate to lixiviation with an aqueous solution of cupric chloride at a temperature above 50.degree. C., preferably at a temperature between 70.degree. C. and 105.degree. C., and then regenerating said aqueous solution in situ at atmospheric pressure by means of air and a regeneration agent selected from the group consisting of hydrochloric acid and ferrous chloride. The invention also contemplates the preferable inclusion in the aqueous cupric chloride solution of an agent for solubilizing cuprous chloride selected from the group consisting of an alkali metal chloride, an alkaline earth metal chloride, ammonium chloride, and ferrous chloride. When the regeneration agent is hydrochloric acid, the pH of the aqueous cupric chloride solution is at most 1 in the presence of ferrous chloride and at most 3 in the absence of ferrous chloride. When the regeneration agent is ferrous chloride, the pH of the aqueous cupric chloride solution ranges between 1 and 3, the temperature of the solution exceeds 50.degree. C., and the solution contains at least 1g/l of cuprous ions and at least 2g/l of ferrous ions, with the result that geothite is precipitated and may be separated, and the non-ferrous metals isolated as the aqueous solutions of the metal chlorides.

    Abstract translation: 本发明提供了一种通过使矿石或浓缩物在高于50℃的温度下与氯化铜水溶液进行浸取来选择性地溶解硫化矿石和浓缩物中含有的有色金属的方法，其中涉及其中的铁和硫。 优选在70℃至105℃的温度下，然后通过空气和选自盐酸和氯化亚铁的再生剂在大气压下原位再生所述水溶液。 本发明还考虑在氯化亚铜水溶液中优选包含选自碱金属氯化物，碱土金属氯化物，氯化铵和氯化亚铁的用于溶解氯化亚铜的试剂。 当再生剂为盐酸时，在氯化亚铁存在下，氯化铜水溶液的pH最多为1，在不存在氯化亚铁的情况下最多为3。 当再生剂是氯化亚铁时，氯化铜水溶液的pH范围在1和3之间，溶液的温度超过50℃，溶液含有至少1g / l的亚铜离子和至少2g / 1的亚铁离子，结果是地钙沉淀并且可能被分离，并且有色金属作为金属氯化物的水溶液分离。

    Dump leaching of copper
    2.
    发明授权
    Dump leaching of copper 失效
    铜浸出浸出

    公开(公告)号：US4120935A

    公开(公告)日：1978-10-17

    申请号：US850442

    申请日：1977-11-11

    Applicant: Gerald F. Fountain ,  Jaime Veloz ,  Harry R. Dahlberg

    Inventor： Gerald F. Fountain ,  Jaime Veloz ,  Harry R. Dahlberg

    IPC: C22B15/00 ,  C22B15/08

    CPC classification number: C22B15/0071 ,  Y02P10/236

    Abstract: The improvement in the method of recovering copper from low grade ore containing oxidized copper ore which comprises establishing a dump of such ore in fragmented form, substantially completely wetting the ore in the dump with strong aqueous sulfuric acid containing at least about 100 g/l H.sub.2 SO.sub.4, allowing the acid wetted ore to age for a period of at least about three days, thereafter washing the aged ore with dilute aqueous sulfuric acid containing about 5 to 40 g/l H.sub.2 SO.sub.4, collecting such washings, and recovering copper therefrom.

    Abstract translation: 从含有氧化铜矿的低品位矿石中回收铜的方法的改进，其中包括以碎片形式倾倒这种矿石，使用含有至少约100g / l H 2 SO 4的强硫酸水溶液基本上完全润湿了矿石中的矿石 允许酸润湿的矿石老化至少约三天的时间，然后用含有约5至40g / l H 2 SO 4的稀硫酸水溶液洗涤老化矿石，收集这种洗涤液，并从中回收铜。

    Recovery of metal values from ore concentrates
    3.
    发明授权
    Recovery of metal values from ore concentrates 失效
    从ORE浓度恢复金属值

    公开(公告)号：US3888748A

    公开(公告)日：1975-06-10

    申请号：US36687673

    申请日：1973-06-04

    Applicant: DU PONT

    Inventor： BRENNECKE HENRY M

    IPC: C22B15/00 ,  C25C1/12 ,  C22B3/00 ,  C22B15/08

    CPC classification number: C25C1/12

    Abstract: A hydrometallurgical process to recover metal value e.g., copper, from sulfide ore concentrates, e.g., chalcopyrite, bornite and chalcocite characterized by: (1) nitric acid-sulfuric acid leach whereby the acidity is just sufficient to retain iron in solution while extracting substantially all of the copper and reducing nitrate to a low level, (2) reduction of nitrate to

    Process for recovery of copper and other metals from source materials
    4.
    发明授权
    Process for recovery of copper and other metals from source materials 失效
    铜和其他金属从源材料中回收的工艺

    公开(公告)号：US3634070A

    公开(公告)日：1972-01-11

    申请号：US3634070D

    申请日：1969-07-29

    Applicant: US INTERIOR

    Inventor： LINDSTROM ROALD E ,  BAUER DONALD J

    IPC: C22B3/16 ,  C22B15/00 ,  C22B15/08 ,  C22B19/22 ,  C22B23/04

    CPC classification number: C22B3/165 ,  C22B15/0063 ,  Y02P10/234 ,  Y02P10/236

    Abstract: A metal is leached from an ore or concentrate with an aqueous solution of an organic chelating agent. In selecting a suitable agent the formula Beta >10 3/Ksp is employed wherein Beta is the stability constant of the chelate composed of the agent and the metal to be leached, and Ksp is the solubility product constant, in water, of the compound in the ore or concentrate which supplies the metal in the chelate. As an example, an aqueous solution of EDTA leaches copper from a carbonate ore in a limestone matrix. Metal values are then recovered from solution by chemical reduction, electrolysis, cementation, sulfide precipitation or pH control.

    Abstract translation: 用有机螯合剂的水溶液从矿石或浓缩物中浸出金属。 在选择合适的试剂中，使用式β> 10 -3 / Ksp，其中β是由试剂和待浸出的金属组成的螯合物的稳定常数，Ksp是在水中的溶解度积常数 在螯合物中提供金属的矿石或浓缩物中的化合物。 例如，EDTA的水溶液从石灰石基质中的碳酸盐矿石中浸出铜。 然后通过化学还原，电解，胶结，硫化物沉淀或pH控制从溶液中回收金属值。

    Beneficiation of oxidized or weathered sulfide ores
    5.
    发明授权
    Beneficiation of oxidized or weathered sulfide ores 失效
    氧化或天然硫酸盐的受益

    公开(公告)号：US3582317A

    公开(公告)日：1971-06-01

    申请号：US3582317D

    申请日：1968-12-20

    Applicant: TATSUICHI GAMO ,  TAKESHI FURUKAWA

    Inventor： GAMO TATSUICHI ,  FURUKAWA TAKESHI

    IPC: B03D1/02 ,  C21B1/08 ,  C22B15/08 ,  C22B19/22

    CPC classification number: B03D1/02

    Abstract: THE BENEFICIATION ACCORDING TO THE PRESENT INVENTION IS CARRIED OUT BY COMMINUTING THE STARTING COMPLEX SULFIDE ORE (INCLUDING SO-CALLED BLACK ORE), WHILE BEING CONCURRENTLY AIR-DRIED, THE COMMINUTED DRY ORE IS THEN FORTHWITH PULPED, AND THE PULP IS SUBJECTED TO LEACHING WITH E.G. WATER TO LEACH OUT WATER-SOLUBLE CONSTITUENTS THEREFROM. FILTRATION SEPARATES THE WATER-INSOLUBLES FROM THE FILTRATE. ROUGH FLOTATION SEPARATES THE FILTER CAKE INTO A PYRITE CONCENTRATE AND A COPPER AND ZINC CONCENTRATE. THE LATTER IS SEPARATED INTO A COPPER CONCENTRATE AND A ZINC CONCENTRATE BY DIFFERENTIAL FLOTATION, FOLLOWING CONDITIONING. CYANIDE SOLUBLES ARE REMOVED FROM THE ZINC CONCENTRATE. WASH WATERS AND FILTRATES FROM THE LEACHINGS ARE RECIRCULATED AND RE-USED.

    Wet process for manufacturing metallic copper
    6.
    发明授权
    Wet process for manufacturing metallic copper 失效
    制造金属铜的湿法工艺

    公开(公告)号：US3573896A

    公开(公告)日：1971-04-06

    申请号：US3573896D

    申请日：1968-06-10

    Applicant: SHOICHIRO HORI ,  TAIJIRO OKABE

    Inventor： HORI SHOICHIRO ,  OKABE TAIJIRO

    IPC: C22B15/00 ,  C22B9/02 ,  C22B9/04 ,  C22B15/08

    CPC classification number: C22B15/0063 ,  Y02P10/236

    Abstract: THE PROCESS OF MANUFACTURING COPPER AND SULFATE SALTS OF SODIUM, OF POTASSIUM, OF MAGNESIUM OR OF CALCIUM, OBTAINED AS BY-PRODUCTS, BY REACTING AT LEAST ONE COPPER COMPOUND, SUCH AS COPPER SULFATE, COPPER CARBONATE, COPPER OXIDE OR BASIC COPPER SALTS OF THESE COMPOUNDS WITH SALTS OF SODIUM, OR OF POTASSIUM, OR OF MAGNESIUM OR OF CALCIUM WHICH PRODUCE SULFITE IONS OR HYDROGEN SULFITE IONS IN THE WATER SOLUTION, BY HEATING IN THE PRESENCE OF WATER.

    Composition used for extracting copper from aqueous copper salts
    10.
    发明授权
    Composition used for extracting copper from aqueous copper salts 失效
    用于从铜盐水中提取铜的组合物

    公开(公告)号：US4231888A

    公开(公告)日：1980-11-04

    申请号：US965498

    申请日：1978-12-01

    Applicant: Raymond F. Dalton

    Inventor： Raymond F. Dalton

    IPC: C22B3/00 ,  B01D11/04 ,  C01G3/00 ,  C09K3/00 ,  C22B3/26 ,  C22B15/08

    CPC classification number: C01G3/003 ,  C22B3/0032 ,  Y02P10/234 ,  Y10S423/14

    Abstract: A process for extracting metal values from aqueous solutions of metal salts which comprises the steps of contacting the aqueous solution with a solution in a water-immiscible organic solvent of one or more o-hydroxyaryloximes containing at least 3 aliphatic or alicyclic carbon atoms and which are strong metal extractants and one or more alkylphenols optionally containing one chlorine atom or one cyano group, separating from the aqueous phase the solvent phase containing metal in the form of a complex with the o-hydroxyaryloxime contacting the solvent phase with an aqueous mineral acid, and separating the solvent phase from the aqueous phase containing metal in the form of a salt with the mineral acid.

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