Unlock instant, AI-driven research and patent intelligence for your innovation.

Technology for preparing electrolytic manganese dioxide

An electrolytic manganese dioxide and preparation process technology, applied in the direction of electrolysis process, electrolysis components, etc., can solve the problems of long purification time and affect production efficiency, and achieve the effect of improving production efficiency

Inactive Publication Date: 2017-12-26
LIUZHOU KAITONG NEW MATERIAL TECH CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the existing process of preparing electrolytic manganese dioxide, the purification time is long, which affects the production efficiency

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0020] The present invention will be described in detail below, and the exemplary embodiments and descriptions of the present invention are used to explain the present invention, but not to limit the present invention.

[0021] A preparation process of electrolytic manganese dioxide, which adopts the following steps:

[0022] Firstly, the raw materials of pyrolusite and pyrite are ground into powders and then mixed in proportion and transported to the false bottom of the reaction chamber of the roasting furnace; The reactants are sprinkled to the false bottom from the several through holes, and because the conveying pipe has a certain distance from the false bottom, the reactants can disperse when falling from the through holes, reducing the bonding of the reactants. Preferably, the delivery tube can be rotated to prevent the reaction from clogging the through hole. After the powder is spread, start the roasting furnace, and then direct the high-pressure gas to the false bott...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention relates to a technology for preparing electrolytic manganese dioxide. The technology comprises the following steps: pyrolusite and pyrite raw materials are each ground into powder particles; the powder particles are mixed in proportion and conveyed to a conveying pipe; the mixed powder particles is automatically spread on a false bottom of a reaction chamber of a roasting furnace through the conveying pipe; the roasting furnace is started, high-pressure gas is guided to the false bottom from bottom to top, and meanwhile, low-pressure gas is guided to the false bottom from top to bottom; after roasting process is completed, leaching and purification process is carried out to obtain a purification solution; second-stage impurity removal process is carried out; and electrolysis process is carried out to obtain an electrolytic manganese dioxide product. According to the technology, an inner shaft and an outer shaft which drive a stirring rod to rotate are used for filtering a solution, and on one hand, the leaching solution added with barium sulfide can be stirred to enable the mixture to react to generate precipitates; and on the other hand, the inner shaft is enabled to filter the leaching solution through lifting of outer shaft so that the precipitates can be left in an container, stirring and filtering are realized without other auxiliary devices, and the production efficiency is greatly improved.

Description

technical field [0001] The invention relates to a preparation process of electrolytic manganese dioxide. Background technique [0002] Natural manganese ore with industrial application value mainly includes manganese oxide ore and manganese carbonate ore. According to the different grades and impurity content of manganese ore, there are currently two domestic and international methods for deep processing: one is for harmful impurities (such as phosphorus , sulfur) low-rich ores can be directly produced by pyrometallurgical technology to produce manganese alloy products or used as battery manganese powder; second, for most manganese carbonate and some manganese oxide ores, hydrometallurgical technology is generally used to produce a series of manganese salts product. However, with the mining of manganese ore resources year by year, the high-grade, low-impurity high-quality manganese ore is increasingly depleted. Therefore, the research, development and utilization of complex...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C22B47/00C22B1/02C22B3/22C22B3/44C25B1/21
CPCC22B47/00C22B1/02C22B3/22C22B3/44C25B1/21
Inventor 黎超英吴沛荣
Owner LIUZHOU KAITONG NEW MATERIAL TECH CO LTD