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Superfine particle zinc oxide powder production technology

A zinc oxide powder and production process technology, applied in the field of ultra-fine particle zinc oxide powder production technology, can solve the problems of low purity, low quality, and narrow application range of zinc oxide, and achieve simple production process, scientific production process, and low cost. The effect of production costs

Inactive Publication Date: 2016-11-16
安徽省含山县锦华氧化锌厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing zinc oxide production process is complicated, which leads to higher production efficiency and higher production costs. Therefore, the market competitiveness of zinc oxide produced by traditional processes is poor, and due to high energy consumption, it is no longer in line with current requirements. The theme of social energy saving and emission reduction, and the zinc oxide produced by the existing production process has low purity and large particle diameter, so the quality is not high and the scope of application is narrow

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] The invention provides a technical solution: a production process of ultrafine particle zinc oxide powder, comprising the following steps:

[0017] S1: Leaching, take secondary zinc oxide as raw material, transfer the zinc powder to the centrifuge equipment with leaching solution, soak and heat, the heating temperature is 80 degrees Celsius, and the time of heating and soaking is 30 minutes. During this process, continuously Use air extraction equipment to extract the generated gas and discharge it to reduce the internal pressure. After heating and soaking, stir continuously through the centrifugal equipment. The speed of the centrifugal equipment is controlled at 700 rpm, and then transfer the internal solution to the container. Stand still for 3 minutes, wherein, the leaching solution used comprises the following weight components: 12 parts of ammonia water with a mass concentration of 22%, 3 parts of ammonium bicarbonate, and 1 part of ammonium carbonate;

[0018] S2...

Embodiment 2

[0023] The invention provides a technical solution: a production process of ultrafine particle zinc oxide powder, comprising the following steps:

[0024] S1: Leaching, take secondary zinc oxide as raw material, transfer the zinc powder to the centrifuge equipment with leaching solution, soak and heat, the heating temperature is 85 degrees Celsius, and the heating and soaking time is 40 minutes. Use air extraction equipment to extract the generated gas and discharge it to reduce the internal pressure. After heating and soaking, stir continuously through the centrifugal equipment. The speed of the centrifugal equipment is controlled at 750 rpm, and then transfer the internal solution to the container. Stand still for 4 minutes, wherein, the leaching solution used comprises the following weight components: 13 parts of ammonia water with a mass concentration of 22%, 5 parts of ammonium bicarbonate, and 1.5 parts of ammonium carbonate;

[0025] S2: Oxidation treatment, transfer th...

Embodiment 3

[0030] The invention provides a technical solution: a production process of ultrafine particle zinc oxide powder, comprising the following steps:

[0031] S1: Leaching, take secondary zinc oxide as raw material, transfer the zinc powder to the centrifuge equipment with leaching solution, soak and heat, the heating temperature is 90 degrees Celsius, and the heating and soaking time is 50 minutes. Use air extraction equipment to extract the generated gas and discharge it to reduce the internal pressure. After heating and soaking, stir continuously through the centrifugal equipment. The speed of the centrifugal equipment is controlled at 800 rpm, and then transfer the internal solution to the container. Stand still for 5 minutes, wherein, the leaching solution used comprises the following weight components: 15 parts of ammonia water with a mass concentration of 22%, 6 parts of ammonium bicarbonate, and 2 parts of ammonium carbonate;

[0032] S2: Oxidation treatment, transfer the ...

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Abstract

The invention discloses a superfine particle zinc oxide powder production technology. The production technology comprises the following steps of 1 leaching, 2 oxidation treating, 3 filtering, 4 replacing and 5 extracting and grinding. The zinc oxide production technology is simple, therefore, energy consumption is low, and the production cost is reduced; the production technology is more scientific, and by adding the replacing step, the prepared zinc oxide product is higher in purity; through grinding treatment of grinding equipment, the diameters of particles of zinc oxide are smaller, the sizes of the particles of zinc oxide are more uniform, and therefore the using range of zinc oxide produced through the scheme is wider.

Description

technical field [0001] The invention relates to the field of zinc oxide production technology, in particular to a production technology of ultrafine particle zinc oxide powder. Background technique [0002] The existing zinc oxide production process is complicated, which leads to higher production efficiency and higher production costs. Therefore, the market competitiveness of zinc oxide produced by traditional processes is poor, and due to high energy consumption, it is no longer in line with current requirements. The theme of social energy saving and emission reduction, and the zinc oxide produced by the existing production process has low purity and large particle diameter, so the quality is not high and the scope of application is narrow. Contents of the invention [0003] The purpose of the present invention is to provide a production process of ultrafine particle zinc oxide powder to solve the problems raised in the above-mentioned background technology. [0004] In...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01G9/02
CPCC01G9/02C01G9/003C01P2004/60C01P2006/80
Inventor 庆玉荣
Owner 安徽省含山县锦华氧化锌厂
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