Device and method for recovering cadmium cotton through spin current electric field enhanced replacement

An electric field and cadmium sponge technology, which is applied in the field of devices for reinforced replacement and recovery of cadmium sponge by a spin current electric field, can solve the problems of low recovery rate, increased processes, and many residues, so as to eliminate concentration polarization, improve efficiency, and promote transmission. effects of qualitative processes
CN112877538AInactive Publication Date: 2021-06-01CENT SOUTH UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CENT SOUTH UNIV
Publication Date
2021-06-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a device and method for recovering cadmium cotton through spin current electric field enhanced replacement. The device comprises a reaction tank body, an aluminum lining cathode, a zinc bar anode, a filter bottom net, a coupling power source and a heating device. The method comprises the following steps that the reaction tank body is assembled, and a coupling electric field is arranged; a solution is added, and the pH value of the solution is adjusted; the solution is heated to make the temperature rise; in the A-stage reaction, the solution and a zinc bar anode are subjected to a replacement reaction in a spin current state; in the B-stage reaction, the solution and the zinc bar anode are continuously reacted in the spin current state and under the condition of coupling the electric field; centrifuging is conducted, the solution in the reaction tank body is evacuated, and the cadmium cotton is collected; By adoption of the device and method, the electrochemical reaction process is promoted by using the electric field, the mass transfer process is promoted by using the spin current relative to the cathode and the anode by spinning of the reaction tank body, continuous exposure of zinc wrapped in the cadmium cotton is promoted by using gravity and mechanical force friction, the recovering efficiency of the cadmium cotton is effectively improved, the zinc consumption is reduced, and the grade of the product cadmium cotton is increased.
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Description

technical field

[0001] The invention relates to the technical field of hydrometallurgy, in particular to a device and a method for recovering cadmium cotton by means of a spin current electric field enhanced displacement. Background technique

[0002] In the hydrometallurgical industry, the replacement reaction is usually used to purify the electrolyte or recover the target metal. This type of replacement reaction mainly involves the reduction of a metal with a lower potential from ion to elemental substance after oxidation of a metal with a higher potential. For example, in the production process of non-ferrous metals such as lead-zinc smelting and cobalt-nickel smelting, this reaction mechanism is usually used to purify and remove impurities.

[0003] In the actual production process of zinc smelting industry, the reaction process is often realized by directly adding zinc powder and mechanical stirring. In the zinc powder replacement reaction, the stirring speed has a gr...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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