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A method for producing wave-absorbing materials from industrial waste liquid rich in ferromanganese

A technology of industrial waste liquid and wave-absorbing materials, which is applied in the field of manufacturing wave-absorbing materials, can solve problems such as inability to utilize ferromanganese elements, high processing costs, waste of resources, etc., achieve broadband electromagnetic wave absorption efficiency, high electromagnetic wave absorption efficiency, and solve The effect of wasting resources

Active Publication Date: 2015-08-26
山东春光磁电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Many industrial waste liquids contain a large amount of ferromanganese and other elements. If these waste liquids are discharged directly into nature, it will not only be a huge waste of resources, but also cause environmental pollution. Therefore, it is necessary to treat these industrial waste liquids to process
[0003] In the prior art, the neutralization method is generally adopted for the treatment of industrial waste liquid, that is, the waste liquid is neutralized to neutrality, and then diluted and discharged. This waste liquid treatment method has the following defects: 1. The waste liquid cannot be The ferromanganese element in the manganese element is fully utilized, but the problem of resource waste is still not solved; 2. There are many harmful components in the treated waste liquid, which will cause secondary pollution after being discharged; 3. The treatment cost is high
At airports, flights are delayed due to electromagnetic wave interference; in hospitals, mobile phones often interfere with the normal work of various electronic medical instruments

Method used

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Embodiment Construction

[0020] The present invention will be further described below in conjunction with specific embodiments.

[0021] The method of utilizing the industrial waste liquid rich in ferromanganese to manufacture a wave absorbing material according to the present invention comprises the following steps:

[0022] 1. Desiliconization treatment: at a temperature of 45 °C, continuously blow air and ammonia gas into the industrial waste liquid rich in ferromanganese for 40-60 minutes, and control the pH value of the waste liquid to 4-5; Add polyacrylamide to the waste liquid to produce flocculent precipitate, and the amount of polyacrylamide added is 2‰ of the weight of the waste liquid; filter to remove the flocculent precipitate;

[0023] 2. Drying: drying the filtered waste liquid at a high temperature of 1200°C-1400°C to obtain a solid mixture;

[0024] 3. Measure and adjust the components: use a fluorescence analyzer to measure the content of ferromanganese in the solid mixture, then, a...

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PUM

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Abstract

The invention relates to an industrial effluent treatment method and particularly relates to a method for preparing a wave-absorbing material by using industrial effluent rich in manganese iron. The method comprises the following steps: 1, desilicication treatment; 2, drying; 3, component measurement and adjustment; 4, dry powder mixing; 5, presintering; 6, sanding; 7, pulping; 8, spray granulation and formation; 9, sintering. The industrial effluent treatment method provided by the invention can be used for sufficiently recycling manganese iron elements in an effluent, so that the problem of resource waste is solved; in addition, no harmful substances are discharged, so that no secondary pollution is caused, and the industrial effluent treatment method is very environment-friendly; a manganese zinc ferrite wave-absorbing material manufactured by using the method has the characteristics of high permeability, wide band and high electromagnetic wave absorption efficiency so as to be widely applied to various electronic products and national defence industry products.

Description

technical field [0001] The invention relates to a method for treating industrial waste liquid, in particular to a method for manufacturing a wave absorbing material by utilizing industrial waste liquid rich in ferromanganese. Background technique [0002] Many industrial waste liquids contain a large amount of elements such as ferromanganese. If these waste liquids are directly discharged into nature, it will not only be a huge waste of resources, but also cause environmental pollution. Therefore, it is necessary to treat these industrial waste liquids. to be processed. [0003] In the prior art, the neutralization method is generally adopted for the treatment of industrial waste liquid, that is: the waste liquid is neutralized to neutrality, and then diluted and discharged. This waste liquid treatment method has the following defects: 1. The waste liquid cannot be treated with The manganese and ferromanganese are fully utilized, but the problem of resource waste is still n...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C04B35/26H01F1/34C09K3/00
Inventor 宋兴连韩卫东刘涛
Owner 山东春光磁电科技有限公司
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