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Solid scaly pulp electrolytic cathode device

A slurry electrolysis, fish scale technology, applied in electrodes, electrolysis process, electrolysis components, etc., can solve the problems of affecting the size of the incoming current and restricting the production capacity, so as to increase the electrode area, improve the production capacity, and improve the leaching rate and current. The effect of efficiency

Active Publication Date: 2014-04-30
BEIJING GENERAL RES INST OF MINING & METALLURGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In the electrolytic cell with graphite rods as the cathode electrode and anode electrode, the product in the cathode area is produced in the form of spongy metal powder. It is necessary to add a powder suction device in the cathode area to extract the spongy metal powder, and it must be equipped with filtering and drying devices. Preliminary products can be obtained; an electrolytic cell with graphite rods as the anode electrode and a stainless steel plate or a certain metal plate as the cathode electrode, the product in the cathode area is produced in the form of sheet metal electrodeposited on the cathode frame, but the area of ​​the cathode electrode is limited , thus affecting the size of the incoming current and restricting the production capacity

Method used

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specific Embodiment approach

[0014] The preferred embodiment of the three-dimensional fish scale-shaped pulp electrolysis cathode device of the present invention is:

[0015] It includes a conductive copper tube, one side of the conductive copper tube is connected with a cathode frame, and the cathode frame is provided with three-dimensional scale-like holes.

[0016] The three-dimensional scale-shaped holes include multiple rows of arc structures, the lower row of arc structures and the upper row of arc structures are alternately arranged, and the arc tops of the lower row of arc structures press against the ends of the upper row of arc structures.

[0017] The porosity of the three-dimensional scale-shaped holes is 25%-50%.

[0018] The specific surface area of ​​the three-dimensional scale-shaped pores is 1.2 to 1.5 times that of the plane openings.

[0019] The three-dimensional fish-scale electrolysis cathode device of the present invention has three-dimensional fish-scale electrodes, which can incr...

specific Embodiment

[0020] Such as figure 1 , figure 2 , image 3 As shown, it includes a conductive copper tube 1, one side of the conductive copper tube 1 is connected to a cathode frame 2, and a three-dimensional scale-shaped hole 3 is provided in the cathode frame 2. While increasing the electrode area, the electrolyte can pass through the three-dimensional scale-shaped holes 3 of the cathode electrode, reducing the concentration gradient and improving the current efficiency.

[0021] The opening ratio of the cathode electrode is 25% to 50%, and the three-dimensional scale-like holes 3 increase the specific surface area by 1.2 to 1.5 times compared with ordinary openings.

[0022] It is applied to the electrolytic antimony smelting of ore slurry. After the antimony in the electrolyte is precipitated in the cathode, the electrolyte passes through the three-dimensional scale-like holes 3 in the cathode frame 2, which acts as a diversion, reduces the influence of the concentration gradient, a...

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Abstract

The invention discloses a solid scaly pulp electrolytic cathode device. The device comprises a contact tube, wherein one side of the contact tube is connected with a cathode frame, and solid scaly holes are formed in the cathode frame; each solid scaly hole comprises a multi-row arc structure, the lower arc structures and the upper arc structures are alternately arranged, and the arc roofs of the lower arc structures are propped against at the ends of the upper arc structures; the aperture ratio of each solid scaly hole is 25-50 percent; the specific area of the solid scaly holes is 1.2-1.5 times that of a plane hole. According to the solid scaly pulp electrolytic cathode device, electrolyte can flow among cathode electrodes while the electrode area is enlarged, so that the agitation effect can be improved, the concentration gradient influence can be reduced, the leaching efficiency and the current efficiency can be improved, and the capacity of an electrolytic bath can be improved.

Description

technical field [0001] The invention relates to a wet smelting equipment, in particular to a three-dimensional fish scale-like slurry electrolysis cathode device. Background technique [0002] The traditional hydrometallurgical process includes ore treatment, leaching, separation and purification, electrowinning and other processes, with many processes, long processes and complicated operations. The invention and application of slurry electrolysis technology greatly simplifies the hydrometallurgical process, making the process of ore leaching, leachate purification and electrolytic deposition combined in one device—the electrolytic cell. Although the pulp electrolysis technology has such good advantages, it has not been applied to actual production on a large scale so far due to factors such as the level of technical equipment. [0003] In the prior art, graphite rods are commonly used as anode electrodes in pulp electrolytic cells, and graphite rods, stainless steel plates...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C7/02
Inventor 王成彦陈永强杨永强张永禄范远智崔成旺尹飞柳杨阮书峰郜伟
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
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