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A method and device for improving the utilization rate of zinc powder in zinc sulfate liquid purification

A liquid purification, zinc sulfate technology, applied in the field of metallurgy and chemical industry, can solve the problems affecting the utilization rate of zinc powder, less zinc powder, etc., and achieve the effects of improving the utilization rate of zinc powder, high work efficiency, and improving utilization rate

Active Publication Date: 2019-01-08
张华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In view of existing electrolytic zinc, zinc sulfate, and active zinc oxide production processes, the surface of zinc powder will be coated and passivated by impurity precipitates generated by displacement reactions, resulting in fewer and fewer zinc powders that can participate in chemical reactions. Ultimately affecting the utilization rate of zinc powder and other issues, the present invention provides a method and device that can activate the surface of zinc powder, improve the utilization rate of zinc powder, reduce costs, and ensure the purification effect

Method used

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  • A method and device for improving the utilization rate of zinc powder in zinc sulfate liquid purification
  • A method and device for improving the utilization rate of zinc powder in zinc sulfate liquid purification

Examples

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Effect test

Embodiment 1

[0027] A method for improving the utilization rate of zinc powder when zinc sulfate liquid is purified at low temperature, is characterized in that it comprises the following steps:

[0028] 1) Add zinc powder in an amount of 1g / L to the purification reaction tank 1, so that the zinc powder and the impurity ions in the zinc sulfate solution undergo a replacement reaction, and the reaction time is 1 hour;

[0029] 2) Send the reaction mixture in step 1) into the cavity of cylinder 4 through pump 3, feed pipe 2, and inlet. The flow rate of the reaction mixture and the volume ratio of the purified reaction tank are: 3:1 (m 3 / h:m 3 ), control the rotating speed of the stirring shaft 7 in the cavity of the cylinder body 4 to be 2900 rev / min, make the reaction mixture react in the cavity of the cylinder body 4 for 6 seconds, and let the cladding be in the rotating turbine 6, friction parts 11, separators 8. Under the action of the wear-resistant lining plate 9, it is separated fro...

Embodiment 2

[0033] A method for improving the utilization rate of zinc powder when zinc sulfate liquid is purified at high temperature is characterized in that it comprises the following steps:

[0034] 1) Add zinc powder in an amount of 4g / L to the purification reaction tank 1, so that the zinc powder and the impurity ions in the zinc sulfate solution undergo a replacement reaction, and the reaction time is 2.5 hours;

[0035] 2) Send the reaction mixture in step 1) into the cavity of the cylinder 4 through the pump 3, feed pipe 2, and inlet. The flow rate of the reaction mixture and the volume ratio of the purified reaction tank are: 6:1 (m 3 / h:m 3), control the rotating speed of the stirring shaft 7 in the cavity of the cylinder body 4 to be 3200 rpm, make the reaction mixture react in the cavity of the cylinder body 4 for 15 seconds, and let the cladding be in the rotating turbine 6, the friction piece 11, the separator 8. Under the action of the wear-resistant liner 9, it will be s...

Embodiment 3

[0039] A method for improving the utilization rate of zinc powder when zinc sulfate liquid is purified at high temperature is characterized in that it comprises the following steps:

[0040] 1) Add zinc powder in an amount of 2g / L to the purification reaction tank 1, so that the zinc powder and the impurity ions in the zinc sulfate solution undergo a replacement reaction, and the reaction time is 2 hours;

[0041] 2) Send the reaction mixture in step 1) into the cavity of cylinder 4 through pump 3, feed pipe 2, and inlet. The flow rate of the reaction mixture and the volume ratio of the purified reaction tank are: 4:1 (m 3 / h:m 3 ), control the rotating speed of the stirring shaft 7 in the cavity of the cylinder body 4 to be 3000 rev / min, make the reaction mixture react in the cavity of the cylinder body 4 for 10 seconds, and let the cladding be in the rotating turbine 6, the friction member 11, the separator 8. Under the action of the wear-resistant liner 9, it will be separ...

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Abstract

The invention provides a method and device for increasing the utilization ratio of zinc powder in zinc sulfate liquid purifying. The device comprises a barrel body connected with a purifying reaction tank, ultrasonic vibrating boards connected with an ultrasonic generator is arranged on the inner wall of the purifying reaction tank, a cavity is formed in the barrel body, an inlet and an outlet which communicate with the cavity are formed in the barrel body, and a stirring shaft with turbines or impellers is arranged in the barrel body. The method and device for increasing the utilization ratio of the zinc powder in zinc sulfate liquid purifying are characterized in that rubbing parts are arranged in the cavity of the barrel body, partition boards are arranged on the cavity wall of the barrel body, and separating boards with through holes or through grooves are arranged at the two ends of the cavity of the barrel body; and a reaction mixture in the purifying reaction tank is fed into the barrel body, and under rotation of the stirring shaft, the turbines or the impellers, a covered material on the surface of the zinc powder is rubbed and crashed so as to be separated from the zinc powder under the effects of the rotating turbines or impellers, the rubbing pars, the partition boards, and wear-resisting liner boards, so that the problem that the surface of the zinc powder is covered by impurities is fundamentally solved, and the utilization ratio of the zinc powder is greatly improved.

Description

technical field [0001] The invention relates to a method and device for improving the utilization rate of zinc powder, in particular to a method and equipment capable of improving the utilization rate of zinc powder in the production process of electrolytic zinc, zinc sulfate and active zinc oxide, belonging to the technical field of metallurgy and chemical industry. Background technique [0002] In the production process of electrolytic zinc, zinc sulfate, and active zinc oxide, it is necessary to purify the zinc sulfate solution. In the process, zinc powder is used as the main purifying agent in the low-temperature purification and high-temperature purification links, that is, adding it to the purification reaction tank as the main purification Zinc powder as an agent to replace copper ions (Cu) in zinc sulfate liquid with elemental zinc (Zn) 2+ ), cadmium ions (Cd 2+ ), cobalt ions (Co 2+ ) and other ions that can be replaced by zinc. But the prior art has the followin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B3/46C22B3/02C22B19/20
CPCC22B3/02C22B3/46C22B19/20Y02P10/20
Inventor 张华
Owner 张华
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