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Method and device for improving zinc powder activity with ultrasonic, and application thereof

An ultrasonic and zinc powder technology, applied in the field of zinc sulfate solution impurity removal, can solve the problems of low activity and easy failure of zinc powder

Inactive Publication Date: 2011-02-09
XINGMIN TECH ZHUZHOU
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a solution for the existing problem that zinc powder is used as a reducing agent to remove impurities in the solution, and the activity of zinc powder is low or easy to fail, especially in the zinc hydrometallurgy process. Methods that can improve the activity of zinc dust reducing agents

Method used

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  • Method and device for improving zinc powder activity with ultrasonic, and application thereof
  • Method and device for improving zinc powder activity with ultrasonic, and application thereof
  • Method and device for improving zinc powder activity with ultrasonic, and application thereof

Examples

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Embodiment 1

[0026] figure 1 As an embodiment of the present invention, from the attached figure 1 It can be seen that the present invention is a device for improving the activity of zinc powder with ultrasonic waves. The method for improving the activity of zinc powder with ultrasonic waves is to remove the surface of zinc powder with ultrasonic waves under the environment conditions of the solution using zinc powder as a reducing agent. The basic zinc salt passivation film is a method to keep the zinc powder on the fresh and active surface all the time. The ultrasonic wave, frequency 15-60kHz, sound intensity 1-1000w / cm 2 , The ultrasonic cavitation time for zinc powder is 1-45 minutes. The solution environment using zinc powder as the reducing agent at least includes the conventional zinc sulfate solution of the wet zinc smelting process with a cobalt ion concentration below 100 mg / L.

[0027] Such as figure 1 The shown device for improving the activity of zinc powder with ultrasoni...

Embodiment 2

[0030] attached figure 2 is another embodiment of the present invention. Its impurity removal principle is the same as that of Embodiment 1, mainly due to the difference in device structure. Such as figure 2 The shown device for improving the activity of zinc powder with ultrasonic waves includes a cylindrical reaction chamber 11 filled with zinc sulfate solution 5, a mechanical stirring device 10, and more than one plate-type ultrasonic transmitter 9 arranged around the periphery of the cylindrical reaction chamber 11. The ultrasonic transmitter 9 can emit ultrasonic waves against the flow direction 12 of the zinc sulfate solution, or emit ultrasonic waves perpendicular to the flow direction of the zinc sulfate solution.

[0031] The advantage of this implementation device is that the hydrogen film on the surface of the ultrasonic transmitter is impacted by the swirling flow of the solution, the effective distance of the ultrasonic wave is long, and it is convenient for t...

Embodiment 3

[0033] attached image 3 is another embodiment of the present invention. Its impurity removal principle is the same as that of Embodiment 1, mainly due to the difference in device structure. The cylindrical ultrasonic transmitter has the same vertical axis 15 as the cylindrical reaction chamber, and emits ultrasonic waves toward the circumference of the cylindrical reaction chamber. Such as image 3 The device for replacing and removing cobalt by ultrasonically strengthening zinc powder includes a cylindrical reaction chamber 13 filled with zinc sulfate solution 5, a mechanical stirring device 16 and a cylindrical ultrasonic transmitter 14, and the cylindrical ultrasonic transmitter 14 reacts with the cylindrical The chambers 13 have the same vertical axis, and the cylindrical ultrasonic transmitter 14 emits ultrasonic waves toward the circumference of the cylindrical reaction chamber. The lower side of cylindrical reaction chamber 13 is provided with the inlet 19 of zinc s...

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Abstract

The invention provides a method for improving the activity of zinc powders with supersonic and a devide as well as applications thereof, wherein, the method leads the zinc powder to always keep fresh and active surface under solution environment condition that the zinc powder is taken as reducing agent, the alkali-typed zinc salt passivation film on the surface of the zinc powder can be removed by the supersonic. The supersonic has the frequency of 15-60 kHz and the sound intensity of 1-1000w / cm2; the ultrasonic cavitation reaction time on the zinc powder is 1-45 minutes. Under the effect of supersonic, common ZnSO4 solution containing 100mg / L of cobalt can reduce the cobalt content to 0.8mg / L within 30 minutes. The device provided by the method of the invention improves the zinc powder activativity with the supersonic and comprises at least a reaction chamber where ZnSO4 solution is fully filled; at least a supersonic emitter and at least one mixing device are dipped and arranged in the reaction chamber. The applications of the method at least comprise a technique of cobalt removal with antimony salt and a technique of cobalt removal with antimony trioxide.

Description

Technical field [0001] The present invention relates to a method and device for removing impurities in zinc sulfate solution, in particular to a method and device for removing impurities in the solution by using zinc powder as a reducing agent, especially for improving the activity of zinc powder by ultrasonic waves in the wet zinc smelting process The method and device belong to the technical field of purification. Background technique [0002] In zinc hydrometallurgy, since the zinc sulfate solution produced by leaching zinc ore powder contains copper, cadmium, cobalt, nickel and other impurities, it is necessary to treat the zinc sulfate solution for leaching zinc ore powder. At present, zinc powder is generally used as a reducing agent to remove various impurities in zinc sulfate solution, which is a general purification process in the zinc hydrometallurgy process. Antimony salt cobalt removal process is to use antimony salt (including antimony potassium tartrate, antim...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J19/10
Inventor 曾兴民游力挥范玉峰盛晓敏高文博汪旭明
Owner XINGMIN TECH ZHUZHOU
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