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Method for enhancing continuous discharge performance of natural discharge manganese powder

A discharge manganese powder, a natural technology, applied in the field of metallurgy, can solve the problems of unfavorable long-term use by consumers, high content of harmful impurities, and low battery capacity, etc., and achieve the effect of increasing continuous discharge time, low cost, and improving performance

Inactive Publication Date: 2016-12-21
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

The raw materials of natural discharge manganese powder have problems such as insufficient open circuit voltage, low continuous discharge point, and high content of harmful impurities.
[0003] If the battery is made of natural discharge manganese powder with low continuous discharge or even substandard continuous discharge, the battery will have low capacity and short service life, which is not conducive to the long-term use of consumers.

Method used

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  • Method for enhancing continuous discharge performance of natural discharge manganese powder

Examples

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Comparison scheme
Effect test

Embodiment 1

[0021] The raw ore natural discharge manganese powder made by powdering the raw ore natural discharge manganese sand has an opening pressure of 1.65 V and a continuous discharge of 272 minutes. MnO 2 content of 52.23%, Fe content of 7.84%, SiO 2 The content is 22.57%, and the particle size is ≤5 mm. The raw ore natural discharge manganese sand is powdered after magnetic separation by a permanent magnet magnetic separator with a magnetic field strength of 6000 Gs and a rotational speed of 20 r / min to obtain a magnetic separation concentrate natural discharge manganese powder. The opening pressure of the magnetic separation concentrate natural discharge manganese powder 1.65 V, continuous discharge for 290 min, MnO 2 content of 60.62%, Fe content of 9.79%, SiO 2 content of 8.91%, the opening pressure of the magnetic separation tailings obtained by magnetic separation is 1.61 V, and the continuous separation is 226 min. MnO 2 content of 42.15%, Fe content of 7.80%, SiO 2 The ...

Embodiment 2

[0023] The raw ore natural discharge manganese powder made by powdering the raw ore natural discharge manganese sand has an opening pressure of 1.65 V and a continuous discharge of 272 minutes. MnO 2 content of 52.23%, Fe content of 7.84%, SiO 2 The content is 22.57%, and the particle size is ≤5 mm. The raw ore natural discharge manganese sand is powdered after magnetic separation by a permanent magnet magnetic separator with a magnetic field strength of 6000 Gs and a rotational speed of 30 r / min to obtain a magnetic separation concentrate natural discharge manganese powder. The opening pressure of the magnetic separation concentrate natural discharge manganese powder is 1.65 V, continuous discharge for 302 min, MnO 2 content of 60.56%, Fe content of 9.39%, SiO 2 content of 10.71 %, the opening pressure of the magnetic separation tailings obtained by magnetic separation is 1.61 V, and the continuous discharge time is 231 min. MnO 2 content of 41.44%, Fe content of 7.46%, Si...

Embodiment 3

[0025] The raw ore natural discharge manganese powder made by powdering the raw ore natural discharge manganese sand has an opening pressure of 1.65 V and a continuous discharge of 272 minutes. MnO 2 content of 52.23%, Fe content of 7.84%, SiO 2 The content is 22.57%, and the particle size is ≤5mm. The raw ore natural discharge manganese sand is powdered after magnetic separation by a permanent magnet magnetic separator with a magnetic field strength of 6000 Gs and a rotational speed of 35 r / min to obtain a magnetic separation concentrate natural discharge manganese powder. The opening pressure of the magnetic separation concentrate natural discharge manganese powder is 1.64 V, continuous discharge for 295 min, MnO 2 content of 60.16%, Fe content of 8.72%, SiO 2 The content is 10.13%, the opening pressure of the magnetic separation tailings obtained by magnetic separation is 1.60 V, and the continuous discharge time is 215 min. MnO 2 content of 38.87%, Fe content of 6.55%, ...

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Abstract

Belonging to the metallurgical field, the invention discloses a method for enhancing the continuous discharge performance of natural discharge manganese powder. The specific steps include: taking continuous discharge unqualified natural discharge manganese sand as the raw material, subjecting the natural discharge manganese sand to magnetic separation, then conducting powdering to obtain natural discharge manganese powder, and using a permanent magnetic separator with a magnetic field intensity of 5000-8000 Gs to perform dry separation at a rotation speed of 20-40r / min. Natural discharge manganese powder is sorted under different rotation speeds and different magnetic field intensities, and the continuous discharge time of natural discharge manganese powder can be improved to different extents, thereby prolonging the continuous discharge time of batteries and improving the battery use performance. The treatment method is very simple and low in cost, and has strong operability. The method not only improves the resource utilization ratio of natural discharge manganese powder, but also brings good economic benefits for enterprises.

Description

technical field [0001] The invention belongs to the field of metallurgy, and in particular relates to a method for improving the continuous discharge performance of natural discharge manganese powder. Background technique [0002] Natural discharge manganese powder is the main raw material for the production of batteries, and its quality can greatly affect the discharge performance of batteries. Natural discharge manganese powder is a non-renewable resource. With the development of manganese ore mining, the natural discharge manganese powder with high grade and less impurities is gradually decreasing. The raw materials of natural discharge manganese powder have problems such as insufficient open circuit voltage, low continuous discharge point, and high content of harmful impurities. [0003] If the battery is made of natural discharge manganese powder with low or even substandard continuous discharge, the battery will have a small capacity and a short service life, which is...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B03C1/00
CPCB03C1/00
Inventor 符慧文杨勇吴晓丹黄冠汉闭伟宁覃敏贵梁有龙刘登祥李美娴廖赞伟谢彦魏汉可许农琦陈祖旺吴贤图唐秀伟
Owner DAXIN MANGANESE MINE BRANCH OF CITIC DAMENG MINING IND
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