Electrolytic manganese residue harmless processing composition

Abstract

The invention discloses an electrolytic manganese residue harmless processing composition. The composition comprises, by weight, 0.05-0.5 part of phosphate, 5-20 parts of a mixture of magnesium hydrate and magnesium oxide and 0.05-0.3 part of carboxylic acid when 100 parts of electrolytic manganese residues are processed. When the electrolytic manganese residues are processed, the processing costis low, energy consumption is low, the processing steps are simple, operation is easy, and the pollution of stacking of the electrolytic manganese residues to the surrounding environment is avoided.

Description

technical field [0001] The invention belongs to the technical field of manganese production, in particular to a composition used for harmless treatment of electrolytic manganese slag. Background technique [0002] China is currently the world's largest manganese-producing country. Manganese metal is used in the steel industry. There is a saying that "no manganese can't make steel". Manganese is an important basic material for our national economy and one of the country's important strategic resources. Therefore, the production of manganese is very important. important. [0003] The production process of manganese mainly includes electrolysis, thermite and electrosilicon, and the method of industrial production of manganese is electrolysis. The production cost of the electrolytic method is relatively high, and a large amount of electrolytic manganese slag will be produced, but the purity of the produced manganese is good. [0004] Electrolytic manganese slag is the largest ...

AI Technical Summary

Problems solved by technology

The main problems of electrolytic manganese slag in the preparation of wall materials are as follows: one is that the proportion of electrolytic manganese slag is relatively small, and increasing the amount of addition will lead to a decrease in the strength of the brick body; the other is that heavy metals and toxic impurities in electrolytic manganese slag need further processing. remove

[0014] At present, most of the research on resource utilization technology of electrolytic manganese slag is in the stage of theoretical research, and few of them have been applied in actual industrialization. benefit, and the secondary use value is not great

Second, in the resource utilization process of electrolytic manganese slag in the cement industry, wall materials, and preparation of full-priced fertilizers, it is necessary to consider the harmless treatment of harmful elements or heavy metals, and the cost is relatively high

However, this method first needs to roast the electrolytic manganese slag at a high temperature of 450-900°C for 0.5-4 hours, which consumes a lot of energy and costs a lot.

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