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Method for producing electrolytic manganese dioxide

A technology of electrolytic manganese dioxide and production methods, applied in the direction of electrolysis process, electrolysis components, etc., can solve problems such as not being applied in industry, achieve the effects of reducing procurement and transportation costs, simplifying the impurity removal process, and reducing production costs

Active Publication Date: 2015-07-08
GUANGXI NON FERROUS METALS GROUP HUIYUANMENGYE
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these methods have certain defects and have not been practically applied in industry.

Method used

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  • Method for producing electrolytic manganese dioxide
  • Method for producing electrolytic manganese dioxide
  • Method for producing electrolytic manganese dioxide

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Embodiment Construction

[0026] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0027] figure 1 It is a structural schematic diagram of the production device of manganese monoxide ore powder of the present invention.

[0028] See figure 1 The production device of manganese monoxide ore powder provided by the present invention comprises a vertical reduction furnace 8, the top of the reduction furnace 8 is provided with an automatic distributing machine 9 and a feeding scraper 10, and the bottom of the reduction furnace 8 is provided with A heat medium gas burner 6 and a combustion-supporting blower 2, a cooling water tank 3 and a discharge scraper 1 are provided at the bottom of the reduction furnace 8. The number of the reduction furnaces 8 may be multiple, and the multiple reduction furnaces 8 are arranged side by side.

[0029] In the production device of manganese monoxide ore powder provided by the present invention, the fee...

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Abstract

The invention discloses a method for producing electrolytic manganese dioxide. The method comprises the following steps of: a, drying and conveying uniformly mixed manganese oxide ore powder and coal to a feed port in the top of a reduction furnace which is vertically arranged to do motions from top to bottom; b, spraying gas through a hot gas nozzle below the reduction furnace to burn, and spirally raising high temperature smoke produced after combustion in a furnace chamber of the reduction furnace; c, discharging the cooled reduced high-temperature manganous oxide through a discharging device, and thus obtaining the manganous oxide ore powder; d, utilizing the manganous oxide ore powder and sulfuric acid to carry out leaching combination reaction, and obtaining a crude manganese sulfate solution after solid-liquid separation; and e, purifying the crude manganese sulfate solution to remove impurities, pouring the purified manganese sulfate solution into an electrolytic tank to electrolyze so as to obtain an electrolytic manganese dioxide product. The manganous oxide ore powder prepared by the method can be used as a substituted raw material for producing the electrolytic manganese dioxide, so that a manganese carbonate ore raw material depending problem of manganese industries is solved, and the acid consumption and cost are greatly lowered.

Description

technical field [0001] The invention relates to a production method of electrolytic manganese dioxide, in particular to a method for producing electrolytic metal manganese with low-grade manganese oxide ore as raw material. Background technique [0002] Electrolytic manganese metal is widely used in metallurgy, medicine, electronics, communication and other fields. With the development of science and technology, the application of electrolytic manganese continues to expand, and the market demand grows by about 15% annually. The annual production capacity of electrolytic manganese in my country can reach 800,000 tons, accounting for 80% of the world's total production. Over the years, most of my country's electrolytic manganese has been used for export, mainly to Japan, South Korea, Europe and the United States and other countries. Electrolytic manganese metal is obtained from manganese ore by acid leaching to obtain manganese salt, and then sent to the electrolytic cell to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B1/21
Inventor 陈奇志贾艳桦史磊王绍立陆超方皓黄盛武陆宾韦举良曾德超
Owner GUANGXI NON FERROUS METALS GROUP HUIYUANMENGYE
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