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A method for extracting manganese from composite manganese ore composed of manganese-containing multi-phases

A composite manganese ore, multi-phase technology, applied in photography technology, instruments, photography auxiliary technology and other directions, can solve the problems of lack of scientific and reasonable development of new manganese ore resources, technology research on manganese ore resources, and multiple components, etc. The effect of low consumption, reduced energy consumption and high reaction efficiency

Active Publication Date: 2017-09-12
CHANGSHA RES INST OF MINING & METALLURGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] From the above analysis of the manganese ore resources, it can be seen that the composite manganese ore contains not only manganese sulfide, manganese carbonate, manganese oxide, and manganese silicate, but also non-metallic elements such as carbon, sulfur, and oxygen. , silicon, and the metal elements are iron, magnesium, calcium, and aluminum, which contain many and complex components. So far, no comprehensive, in-depth, and systematic research has been conducted on this manganese ore resource, nor has there been scientific and rational development of this new resource. Process method of manganese ore resources

Method used

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  • A method for extracting manganese from composite manganese ore composed of manganese-containing multi-phases
  • A method for extracting manganese from composite manganese ore composed of manganese-containing multi-phases
  • A method for extracting manganese from composite manganese ore composed of manganese-containing multi-phases

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Effect test

Embodiment 1

[0045] Such as figure 1 Shown, a kind of method that extracts manganese from the compound manganese ore that contains manganese multiphase composition, its step is:

[0046] (1) Dry the composite manganese ore composed of manganese-containing multi-phase, and then, after crushing and ball milling, obtain a composite mineral material of less than 150 meshes, and use magnetic separation to beneficiate to obtain a composite manganese concentrate.

[0047] (2) Add the composite manganese concentrate composed of manganese-containing multi-phase into the dense moving bed, which is equipped with temperature control system, gas flow control system and exhaust gas absorption system, and the dense moving bed The direction of the gas flow inside is opposite to the direction of material movement, and then the oxygen-enriched air with a pressure of 0.12Mpa is introduced into the dense moving bed, and at a temperature of 450°C, it is oxidized and roasted at a constant temperature for 180 m...

Embodiment 2

[0052] Such as figure 1 Shown, a kind of method that extracts manganese from the compound manganese ore that contains manganese multiphase composition, its step is:

[0053] (1) Dry the composite manganese ore composed of manganese-containing multi-phase, and then, after crushing and ball milling, obtain a composite mineral material with a size of less than 150 mesh, and use magnetic separation to beneficiate to obtain a composite manganese concentrate.

[0054] (2) Add the composite manganese concentrate composed of manganese-containing multi-phase into the dense moving bed, which is equipped with temperature control system, gas flow control system and exhaust gas absorption system, and the dense moving bed The direction of gas flow inside is opposite to the direction of material movement, and then the pressure is 0.11Mpa oxygen-enriched air into the dense moving bed, and at a temperature of 520 ° C, it is oxidized and roasted at a constant temperature for 200 minutes to mak...

Embodiment 3

[0059] Such as figure 1 Shown, a kind of method that extracts manganese from the compound manganese ore that contains manganese multiphase composition, its step is:

[0060] (1) Dry the composite manganese ore composed of manganese-containing multi-phase, and then, after crushing and ball milling, obtain a composite mineral material of less than 150 meshes, and use magnetic separation to beneficiate to obtain a composite manganese concentrate.

[0061] (2) Add the composite manganese concentrate composed of manganese-containing multi-phase into the dense moving bed, which is equipped with temperature control system, gas flow control system and exhaust gas absorption system, and the dense moving bed The direction of the gas flow inside is opposite to the direction of material movement, and then the pressure of 0.11Mpa oxygen-enriched air is introduced into the dense moving bed. Part or all of the sulfur is oxidized to sulfate or sulfur dioxide to obtain a composite manganese ...

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Abstract

The invention discloses a method for extracting manganese from composite manganese ore composed of manganese-containing multi-phases, which provides a new process for processing new manganese resources. The specific steps are as follows: crush and grind the composite manganese ore, and obtain the composite manganese concentrate by using the magnetic separation method; then place it in the roasting equipment, the roasting temperature is 200°C-600°C, the roasting time is 1-4h, and the roasted product obtained is treated with sulfuric acid Leaching, wherein the weight ratio of the amount of sulfuric acid added to the roasted product is 2 to 10:1, the leaching temperature is 30°C to 100°C, and the leaching time is 30 to 240min. Filter and remove iron from the leaching solution, and then add sodium fluoride to remove iron. Calcium and magnesium are further removed by co-precipitation, and the obtained filtrate is sent to an electrolytic cell for electrolysis to obtain electrolytic manganese metal products. The method of the invention has the advantages of high reaction efficiency, fast speed, reduced energy consumption, resource saving, high product recovery rate, environmental protection and the like.

Description

technical field [0001] The invention relates to a method for extracting metal manganese from manganese ore, in particular to a method for extracting manganese from composite manganese ore composed of manganese-containing multi-phase. Background technique [0002] Electrolytic manganese metal is widely used in metallurgy, medicine, electronics, communication and other fields, and is an indispensable and important substance in modern industry. With the development of science and technology, the application of electrolytic manganese continues to expand, and the market demand increases by about 15% annually. At present, the main method of producing electrolytic manganese metal in my country is to use manganese carbonate ore or sintered manganese ore as the main ore, and use manganese dioxide ore to remove iron to produce electrolytic manganese metal. Due to the limited resources of manganese carbonate ore in China, and the grade is decreasing year by year, coupled with random m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C22B1/02C22B3/08C22B3/44C25C1/10
Inventor 侯晓川曾赳雄李贺刘继军杨润德易振鸿
Owner CHANGSHA RES INST OF MINING & METALLURGY