Device for leaching gold mine by electrochemistry oxidation method

An oxidation method and electrochemical technology, applied in the direction of improving process efficiency, etc., can solve the problems of shortened membrane operating life, limited industrial application, mechanical damage, etc., and achieve the effect of simple equipment, convenient operation, and prevention of mechanical wear

Inactive Publication Date: 2007-10-17
SHANGHAI UNIV
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Problems solved by technology

(References: H.G.Linge and N.J.Welham, Minerals Engineering, Vol.10, No.6, pp.557-566, 1997.) This method can make the leaching rate of refractory gold ore reach a good effect, but this The disadvantage of the equipment is that the ion-exchange membrane is washed away by the continuous circulation of the pulp, which causes mechanical damage to the ion-exchange membrane, forms pinholes or becomes thinner, and shortens the operating life of the membrane, which greatly limits the industrial application of this method.

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  • Device for leaching gold mine by electrochemistry oxidation method
  • Device for leaching gold mine by electrochemistry oxidation method

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Embodiment Construction

[0012] The present invention will be further elaborated below in conjunction with the accompanying drawings of the description.

[0013] In this equipment, the anode liquid tank 9 is connected to the water inlet of the anode magnetic circulation pump 11, the water outlet of the anode magnetic circulation pump 11 is connected to the anolyte water inlet 6 of the electrolytic cell through a pipeline, and the anolyte water outlet 4 of the electrolytic cell is passed through The pipeline is connected with the anode feed liquid tank 9 again. The stirring blade 14 is installed at the opening of the cover of the anode feed tank 9 .

[0014] The cathode feed liquid tank 10 is connected with the water inlet of the cathode magnetic circulation pump 12, and the water outlet of the cathode magnetic circulation pump 12 is connected with the catholyte water inlet 5 of the electrolyzer through a pipeline, and the catholyte water outlet 3 of the electrolyzer is connected with the cathode throu...

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Abstract

The invention is a method of extracting refractory gold ore by electrochemical oxidation method which produces oxidant and disposes refractory gold ore in situ, comprising dividing the electrobath into cathode and anode sections by membrane elements composed of inorganic ceramic membrane and ion exchange membrane. The anode section, anode material liquid groove and cathode section, cathode material liquid groove respectively form two absolute material liquid circulating system. The invention uses the characteristic of the inorganic ceramic membrane such as corrosion stability, acid and alkali resistance to effective prevent the mechanical wear of the ion exchange membrane owing to not directly applying ion exchange membrane.

Description

technical field [0001] The invention relates to a device for electrochemically treating refractory gold ore. technical background [0002] At present, the existing equipment for treating gold ore by electrochemical oxidation is mainly electrochemical in-situ oxidation refractory gold ore slurry equipment. This equipment uses ion exchange membranes to separate the electrolytic cell into an anode chamber and a cathode chamber, and coats ruthenium oxide. The titanium electrode is used as the anode, and the nickel is used as the cathode. The anode feed liquid and the cathode feed liquid each have a circulation system. The anode ore slurry circulates in the anode chamber and the anode feed liquid tank under the power of the pump, and the catholyte circulates in the cathode chamber and the catholyte tank under the power of the pump. . (References: H.G.Linge and N.J.Welham, Minerals Engineering, Vol.10, No.6, pp.557-566, 1997.) This method can make the leaching rate of refractory...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B3/06C22B3/02C22B11/00
CPCY02P10/20
Inventor 朱萍李坤芳周鸣周劲
Owner SHANGHAI UNIV
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