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Method for preparing manganese-zinc ferrite using waste alkaline manganese bioxide battery

A technology of manganese zinc ferrite and manganese dioxide, which is applied in the direction of solid waste removal and waste treatment, can solve the problems of low added value of products, low separation purity, and complicated process, so as to avoid low separation purity and wide application , to avoid the effect of high energy consumption

Inactive Publication Date: 2006-12-20
HENAN NORMAL UNIV
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Problems solved by technology

According to literature reports, there are currently two laboratory methods for resource recycling of waste batteries, one is high-temperature heating method, the other is liquid leaching method, which can recover some metals and their compounds, but the two methods have a common problem that they are separated Different metals are difficult, the process is complicated, the added value of the product is low, and the separation purity is low

Method used

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Embodiment Construction

[0006] The current recycling of waste batteries uses liquid leaching or high-temperature heating to separate metal elements from other impurities in waste batteries, and then separates and purifies the separated metals. Due to the separation of different metals, especially those with relatively high purity When the concentration is high, the separation is difficult. At present, electrolysis is often used to separate and extract metals, which consumes a lot of energy, costs high and has low purity. Zinc-manganese ferrite is a magnetic material with excellent performance. It is widely used in transformers, radio communications and aerospace, etc. It is used in large quantities. Its main component is manganese-zinc ferrite. Thereby these well-known techniques of leaching can be utilized to separate the manganese-zinc-iron in the waste alkaline manganese dioxide battery from other insoluble impurities, and adjust the ratio of the isolated manganese-zinc-iron according to the compos...

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Abstract

The invention discloses a preparing method of manganese-zinc ferrite by using waste alkaline manganese dioxide battery belonging to the preparing method of magnetic material. The technology problem resolved in the invention is producing manganese-zinc ferrite directly by the metal in waste alkaline manganese dioxide battery, to realize the renewable resources of waste battery with simple preparing method, low consumption energy, low cost, high additive value. The technical project of the invention is sol-gal process including liquid leaching, filtering for removing insoluble matter, adjusting solution components, making sol-gel, burning xerogel in the temperature of 600-650 degree centigrade or burning xerogel for manganese-zinc ferrite product. The invention is used for producing manganese-zinc ferrite by waste alkaline manganese dioxide battery.

Description

[0001] This application is a divisional application. The filing date of the original application is January 17, 2005, the application number is 2005100173228, and the title is "Method for preparing manganese zinc ferrite from waste alkaline manganese dioxide battery". Technical field: [0002] The invention relates to a method for preparing manganese-zinc ferrite, in particular to a method for preparing manganese-zinc ferrite by using waste alkaline manganese dioxide batteries. Background technique: [0003] The widespread use of dry batteries not only consumes a large amount of metal materials such as manganese, zinc, and iron, but the discarding of waste batteries causes serious pollution to the environment. Research on the recycling of waste batteries has become a major topic. According to literature reports, there are currently two laboratory methods for resource recycling of waste batteries, one is high-temperature heating method, the other is liquid leaching method, wh...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B35/26B09B3/00
CPCY02W30/20
Inventor 席国喜李运清
Owner HENAN NORMAL UNIV
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