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Method for producing electrolytic manganese metal

A technology for electrolytic manganese metal and manganese ore, which is applied in the field of electrolytic manganese metal, can solve the problems of low manganese content in metal manganese, low utilization rate of raw materials, unsatisfactory performance of energy saving and environmental protection, etc., and achieve the effect of high utilization rate of raw materials

Inactive Publication Date: 2022-03-01
靖西市锰矿有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] There are certain deficiencies in the existing electrolytic manganese metal production process, which makes the manganese content of the finished manganese metal low, and at the same time the utilization rate of raw materials is not high, and the performance in terms of energy saving and environmental protection is not ideal

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] In an embodiment of the present application, a method for producing electrolytic manganese metal comprises the following steps:

[0026] 1) The manganese ore raw material is dehydrated by drying to make the water content reach 3%;

[0027] 2) To crush the dehydrated manganese ore raw material, first use the jaw crusher to crush the particle size of the manganese ore raw material to below 100mm, and then use the fine jaw crusher to crush the particle size of the manganese ore raw material to less than 30mm, and finally use an angle grinder to grind powder to obtain a powder with a particle size of less than 0.1mm;

[0028] 3) Use sulfuric acid to leaching, oxidizing, and neutralizing the powder, the leaching temperature is 80°C, the solid-to-liquid ratio is 8:1, the initial sulfuric acid concentration is 100g / L, and the final pH value is 3.0 to obtain a mixed liquid slurry;

[0029] 4) Using a diaphragm filter press to perform pressure filtration on the mixed liquid slu...

Embodiment 2

[0035] In an embodiment of the present application, a method for producing electrolytic manganese metal comprises the following steps:

[0036] 1) The manganese ore raw material is dehydrated by drying to make the water content reach 4%;

[0037] 2) To crush the dehydrated manganese ore raw material, first use the jaw crusher to crush the particle size of the manganese ore raw material to below 100mm, and then use the fine jaw crusher to crush the particle size of the manganese ore raw material to less than 30mm, and finally use an angle grinder to grind powder to obtain a powder with a particle size of less than 0.1mm;

[0038] 3) Use sulfuric acid to leaching, oxidizing, and neutralizing the powder. The leaching temperature is 83°C, the solid-to-liquid ratio is 9:1, the initial sulfuric acid concentration is 110g / L, and the final pH value is 4.0 to obtain a mixed liquid slurry;

[0039] 4) Using a diaphragm filter press to perform pressure filtration on the mixed liquid slu...

Embodiment 3

[0045] In an embodiment of the present application, a method for producing electrolytic manganese metal comprises the following steps:

[0046] 1) The manganese ore raw material is dehydrated by drying to make the water content reach 4.5%;

[0047] 2) To crush the dehydrated manganese ore raw material, first use the jaw crusher to crush the particle size of the manganese ore raw material to below 100mm, and then use the fine jaw crusher to crush the particle size of the manganese ore raw material to less than 30mm, and finally use an angle grinder to grind powder to obtain a powder with a particle size of less than 0.1mm;

[0048] 3) Use sulfuric acid to leaching, oxidizing, and neutralizing the powder. The leaching temperature is 82°C, the solid-to-liquid ratio is 9.5:1, the initial sulfuric acid concentration is 115g / L, and the final pH value is 3.5 to obtain a mixed liquid slurry;

[0049] 4) Using a diaphragm filter press to perform pressure filtration on the mixed liquid...

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Abstract

The invention discloses a method for producing electrolytic manganese metal, and relates to the technical field of electrolytic manganese metal. The method comprises the following steps: 1) carrying out dehydration treatment on a manganese ore raw material to enable the water content of the manganese ore raw material to reach 3-6%; (2) the dehydrated manganese ore raw material is subjected to fragmentation treatment, and powder with the particle size being 0.1 mm or below is obtained; (3) the powder is leached, oxidized and neutralized through sulfuric acid, and mixed liquor slurry is obtained; (4) carrying out filter pressing treatment on the mixed liquor slurry, and filtering filter residues to obtain filtrate; 5) vulcanizing the filtrate to obtain a secondary filtrate; 6) putting the secondary filtrate into an electrolytic bath for electrolysis; and 7) taking out the cathode plate in the electrolytic bath, passivating, washing with water, drying, and stripping the finished manganese metal on the cathode plate to obtain the finished manganese metal. According to the method for producing the electrolytic manganese metal, the finished product manganese metal with the high manganese content can be obtained, and meanwhile the raw material utilization rate is high.

Description

technical field [0001] The invention relates to the technical field of electrolytic manganese metal, in particular to a method for producing electrolytic manganese metal. Background technique [0002] Electrolytic manganese metal refers to a kind of elemental metal obtained from manganese ore through a series of processes. Its appearance is like iron, in irregular flake shape, hard and brittle, bright on one side, rough on the other side, silvery white to brown, processed It is silver-gray after powder; it is easily oxidized in the air, dissolves and replaces hydrogen when it encounters dilute acid, and can decompose water and release hydrogen when it is slightly higher than room temperature. Manganese and manganese alloys are one of the indispensable and important raw materials in the steel industry, aluminum alloy industry, magnetic material industry, and chemical industry. [0003] There are certain deficiencies in the existing electrolytic manganese metal production pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25C1/10
CPCC25C1/10Y02P10/20
Inventor 程世凯凌海超黄大志黄永康陈州华
Owner 靖西市锰矿有限责任公司