A kind of method of manganese zinc ferrite waste recycling

A manganese-zinc ferrite and waste recycling technology, applied in the direction of inorganic material magnetism, can solve the problems of industrial waste, resource waste, low recovery rate, etc., and achieve the effects of reducing production costs, saving resources and reducing pollution

Active Publication Date: 2015-11-25
SHANDONG KAITONG ELECTRON
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Problems solved by technology

[0003] At present, manganese-zinc ferrite production enterprises will produce a large amount of waste products in the process of producing manganese-zinc ferrite. Manganese, iron, and zinc are all non-renewable mineral resources. However, the waste products in the prior art are recycled and reused. stalled for various reasons
Therefore, these manganese-zinc-ferrite wastes can only be treated as garbage and disposed of at a very low price, and even cost a lot of money for disposal, which not only causes a lot of waste of resources, but also makes the production cost of enterprises remain high
[0004] Although there are a small number of companies that can recycle manganese-zinc ferrite waste, their recycling capacity is limited, the recovery rate is very low, and the regeneration value is also extremely low. Hundreds of thousands of tons of manganese-zinc ferrite are produced nationwide every year waste, which is a huge waste for the entire industry

Method used

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Embodiment Construction

[0014] The present invention will be further described below in combination with specific embodiments.

[0015] The method for recycling manganese zinc ferrite waste material of the present invention comprises the following steps:

[0016] 1. Ultrafine grinding: Put manganese zinc ferrite waste into the powder machine for ultrafine grinding, grind for 120 minutes, and make powder, so that the particle size of the powder reaches 0.09 microns;

[0017] 2. Pre-burning reduction: mix the ground powder into manganese oxide, and the amount of manganese oxide added is 0.5-0.9% of the weight of the powder; after mixing the powder and manganese oxide evenly, put them into the rotary kiln. Reduction sintering is carried out at 600°C-800°C with an oxygen content of 3%, destroying the original grain structure and obtaining a new, relatively simple and incompletely reacted grain structure;

[0018] 3. Detection and component adjustment: detect the molar percentages of iron oxide, manganes...

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Abstract

The invention relates to a method for recycling industrial waste, in particular to a method for recycling manganese-zinc ferrite waste. The method comprises the following steps: 1, superfinely grinding; 2, presintering for reducing; 3, detecting and adjusting components; 4, grinding and pulping; 5, granulating. By adopting the method, the problem of ultrafine crushing during manganese-zinc ferrite waste recycling is solved, and the particle size of the material in a dry grinding state can reach about 1 micron, thus meeting a low-temperature pre-reaction requirement; meanwhile, the problems of low-temperature reducing atmosphere presintering, and selection of a mineralizer and a low-temperature dissolution enhancing catalyst are solved; the manganese-zinc ferrite waste generated in industrial production can be sufficiently recycled, so that pollution of the waste to the environment can be reduced, resources can be greatly saved, and the production cost of an enterprise can be reduced.

Description

technical field [0001] The invention relates to a method for recycling industrial waste, in particular to a method for recycling manganese-zinc ferrite waste. Background technique [0002] Manganese zinc ferrite is a kind of soft magnetic ferrite, which belongs to spinel structure and is made of iron, manganese, zinc oxides and their salts by ceramic technology. It has a high initial magnetic permeability and is generally used in the frequency range of 1 kHz to 10 MHz. It can be used to make inductors, transformers, filter cores, magnetic heads and antenna rods. [0003] At present, manganese-zinc ferrite production enterprises will produce a large amount of waste products in the process of producing manganese-zinc ferrite. Manganese, iron, and zinc are all non-renewable mineral resources. However, the waste products in the prior art are recycled and reused. stalled for various reasons. Therefore, these manganese-zinc-ferrite wastes can only be treated as garbage and dispo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01F1/34C04B35/38C04B35/622
Inventor 宋兴连刘涛
Owner SHANDONG KAITONG ELECTRON
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