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    • 1. 发明申请
    • METHOD OF LEACHING COPPER SULFIDE ORE
    • 浸出铜硫化物的方法
    • US20100313713A1
    • 2010-12-16
    • US12625678
    • 2009-11-25
    • Takenari KUWAZAWAAkira MIURA
    • Takenari KUWAZAWAAkira MIURA
    • C22B15/00
    • C22B3/18C22B15/0071Y02P10/234Y02P10/236
    • An object of the present invention is to provide a method of copper leaching without reducing the growth of iron-oxidizing bacterium and the iron-oxidizing capacity when leaching copper from a copper sulfide ore with the use of a sulfuric acid solution to which iron-oxidizing bacteria and silver have been added.The present invention provides a method of leaching copper from a copper sulfide ore, characterized by comprising adding a naturally occurring nitrogen-containing organic component to a leaching solution upon copper leaching from a copper sulfide ore with the use of, as the leaching solution, a sulfuric acid solution to which iron-oxidizing bacteria and silver have been added is provided.
    • 本发明的目的是提供一种铜浸出方法,而不会减少铁氧化细菌的生长,并且在从硫化铜矿石中浸出铜时使用铁氧化性硫酸溶液 添加了细菌和银。 本发明提供了一种从硫化铜矿中浸出铜的方法,其特征在于包括使用作为浸出溶液的铜从硫化铜矿中浸出的铜,将浸出溶液中的天然存在的含氮有机成分加入到浸出溶液中 提供了添加了铁氧化细菌和银的硫酸溶液。
    • 4. 发明申请
    • PROCESS OF TREATMENT FOR OXIDIZING AN ACIDIC SOLUTION CONTAINING AN IODIDE ION AND AN IRON (II) ION
    • 用于氧化含有碘离子和铁(II)离子的酸性溶液的处理方法
    • US20120237995A1
    • 2012-09-20
    • US13418654
    • 2012-03-13
    • Kenichi KUWANOAkira MIURA
    • Kenichi KUWANOAkira MIURA
    • C12P3/00
    • C12P3/00C12M25/20C12N11/00C12N11/14C22B3/18C22B3/44C22B15/0069Y02P10/234Y02P10/236
    • [Problem to be Solved]A method for producing an iron (III) ion from the acidic solution containing an iodide ion and an iron (II) ion efficiently and stably is provided.[Means for Solving Problem]A method comprising performing the following steps (a)-(b), repeatedly and continuously: (a) a step wherein the iron (II) ion in the acidic solution containing the iodide ion and the iron (II) ion is oxidized into iron (III) ion in a reactor using a microbes immobilizing carrier to which iron oxidizing microbes attached; (b) a step wherein sedimentation of the solution obtained in the step (a) is performed in a sedimentation tank to obtain the solution containing the iron (III) ion and concurrently the sediment of the microbes immobilizing carrier to which said iron oxidizing microbes have attached is recovered and then reintroduced into the reactor in the step (a).
    • [待解决的问题]提供了从含有碘离子和铁(II)离子的酸性溶液中有效且稳定地制备铁(III)离子的方法。 解决问题的方法包括重复并连续地执行以下步骤(a) - (b)的方法:(a)将含有碘离子和铁(II)的酸性溶液中的铁(II)离子 )离子在反应器中被氧化成铁(III)离子,使用固定铁氧化微生物的微生物固定载体; (b)在沉淀池中进行步骤(a)中得到的溶液的沉降,得到含有铁(III)离子的溶液,同时还含有所述铁氧化微生物所固定的载体的微生物沉积物 在步骤(a)中回收附着物,然后重新引入反应器。