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Method for preparing manganese monoxide by using activated carbon adsorption slag to conduct reducing roasting on oxide manganese ore

A technology for adsorbing and oxidizing manganese ore with activated carbon, which is applied in the fields of metallurgy and chemical industry, can solve the problems of environmental protection management pressure and environmental protection management cost of electrolytic metal manganese plants, and achieve the effects of reducing energy consumption, production cost and cost.

Inactive Publication Date: 2018-07-06
DAXIN MANGANESE MINE BRANCH OF CITIC DAMENG MINING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in actual production, the activated carbon adsorption slag filtered out after adsorption is often directly pulled to the slag warehouse for storage as waste residue, which has caused a certain pressure on environmental protection and management costs for the electrolytic manganese plant.

Method used

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  • Method for preparing manganese monoxide by using activated carbon adsorption slag to conduct reducing roasting on oxide manganese ore
  • Method for preparing manganese monoxide by using activated carbon adsorption slag to conduct reducing roasting on oxide manganese ore
  • Method for preparing manganese monoxide by using activated carbon adsorption slag to conduct reducing roasting on oxide manganese ore

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Embodiment 1

[0018] A method for producing manganese monoxide by reducing and roasting manganese oxide ore with activated carbon adsorption slag, comprising the following steps:

[0019] (1) Get the activated carbon adsorption slag obtained after absorbing the suspended impurities in the electrolytic manganese solution, dry it, and set aside; the manganese oxide ore (pyrolulurite) and the activated carbon adsorption slag are respectively crushed through a 10-mesh sieve;

[0020] (2) Mix the pulverized manganese oxide ore (pyrolulurite) and activated carbon adsorption slag evenly to obtain a mixed material. The amount of activated carbon adsorption residue is greater than or equal to the amount calculated by the chemical equation based on the manganese content in the manganese oxide ore;

[0021] (3) Put the mixed material into the rotary roasting kiln and roast at 700°C for 65 minutes. The roasted material enters the cooling kiln through the unloading device, and is cooled to within 100°C i...

Embodiment 2

[0023] A method for producing manganese monoxide by reducing and roasting manganese oxide ore with activated carbon adsorption slag, comprising the following steps:

[0024] (1) Get the activated carbon adsorption slag obtained after absorbing the suspended impurities in the electrolytic manganese solution, dry it, and set aside; the manganese oxide ore and activated carbon adsorption slag are pulverized respectively through a 50 mesh sieve; the manganese oxide ore is manganese ore and black manganese ore ;

[0025] (2) Mix the pulverized manganese oxide ore and activated carbon adsorption slag evenly to obtain a mixed material. The amount of activated carbon adsorption slag is greater than or equal to the amount calculated by the chemical equation based on the manganese content in the manganese oxide ore;

[0026] (3) Put the mixed material into the rotary roasting kiln and roast at 800°C for 60 minutes,

[0027] The roasted material enters the cooling kiln through the unloa...

Embodiment 3

[0029] A method for producing manganese monoxide by reducing and roasting manganese oxide ore with activated carbon adsorption slag, comprising the following steps:

[0030] (1) Get the activated carbon adsorption slag obtained after absorbing the suspended impurities in the electrolytic manganese solution, dry it, and set aside; the manganese oxide ore and the activated carbon adsorption slag are pulverized respectively through a 100 mesh sieve; the manganese oxide is brown manganese ore, manganese and metamanganate;

[0031] (2) Mix the pulverized manganese oxide ore and activated carbon adsorption slag evenly to obtain a mixed material. The amount of activated carbon adsorption slag is greater than or equal to the amount calculated by the chemical equation based on the manganese content in the manganese oxide ore;

[0032] (3) Put the mixed material into the rotary roasting kiln and roast at 900°C for 55 minutes,

[0033] The roasted material enters the cooling kiln throug...

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Abstract

The invention belongs to the field of metallurgy and chemical engineering and particularly relates to a method for preparing manganese monoxide by using activated carbon adsorption slag to conduct reducing roasting on oxide manganese ore. The oxide manganese ore is subjected to reduction with the activated carbon adsorption slag obtained by adsorbing suspended impurities of an electrolytic manganese solution, waste is made into valuables, waste slag is made the best use of, and the reducing roasting cost of the oxide manganese ore is remarkably reduced. Moreover, the activated carbon adsorption slag is used for conducting reducing roasting on the oxide manganese ore to obtain a roasted material with the conversion rate being 90% or above and obtain the quality qualified manganese monoxide.The effects of making the waste into valuables, reducing energy consumption and production cost, saving energy and reducing emissions are achieved.

Description

technical field [0001] The invention belongs to the field of metallurgy and chemical industry, and in particular relates to a method for preparing manganese monoxide by reducing and roasting manganese oxide ore with activated carbon adsorption slag. Background technique [0002] Manganese is an indispensable additive in the smelting industry. After electrolytic manganese is processed into powder, it is the main raw material for the production of manganese tetraoxide. The original magnetic material widely used in the electronics industry is produced from manganese tetraoxide. The electronics industry, metallurgical industry and The aerospace industry requires electrolytic manganese metal. With the continuous development of science and technology and the continuous improvement of productivity, electrolytic manganese metal has been successfully and widely used in iron and steel smelting, nonferrous metallurgy, electronic technology, chemical industry, environmental protection, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C22B7/00C22B1/02C22B47/00C01G45/02
CPCC01G45/02C22B1/02C22B7/006C22B47/00Y02P10/20
Inventor 何溯结杨勇陈南雄谢彦魏汉可闭伟宁方广盛严超许英鹏廖英欢韦旭甜
Owner DAXIN MANGANESE MINE BRANCH OF CITIC DAMENG MINING IND