Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for producing electrolytic manganese metal

A technology of electrolytic manganese metal and electrolyte, which is applied in the direction of photographic process, instrument, photographic auxiliary process, etc., can solve the problems of increasing the burden of solution purification, manganese ore cannot be effectively utilized, and the production of manganese alloy products, etc. effect, prevent impurities from entering the solution, and improve quality

Active Publication Date: 2014-04-09
松桃三和锰业集团有限责任公司
View PDF2 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing low-grade manganese ore such as high-iron, high-phosphorus manganese ore and pyrolusite is a typical complex manganese ore with high impurity content and difficult treatment. On the one hand, it cannot be produced by fire method because of its large amount of phosphorus. On the other hand, When this kind of manganese ore is used as raw material and the existing hydrometallurgical technology is used to produce manganese salt series products, due to the need to use a large amount of sulfuric acid during sulfuric acid leaching, the manganese leaching slag is acidic and cannot be discharged. Leakage has caused serious pollution to soil and groundwater resources. At the same time, there is a large amount of iron in the ore, which increases the burden of solution purification and affects product quality. With the existing manganese ore hydrometallurgical technology, manganese processing enterprises are unwilling to adopt this method. ore-like raw material
Therefore, this type of low-grade manganese ore cannot be effectively utilized

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for producing electrolytic manganese metal
  • Method for producing electrolytic manganese metal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Put the pyrolusite and pyrite into the ball mill for ball milling respectively, and sieve to obtain the ore powder with a particle size of 150 mesh; mix the pyrolusite powder and pyrite powder with a molar ratio of 1:2, and load them into 4 Among the reaction tubes with gas, all the reaction tubes were placed in the furnace for flame insulation and constant temperature calcination, the calcination temperature was 500°C, and the calcination time was 3 hours. Import the roasted clinker into the pool, and add clear water to leaching the ore at a mass ratio of 1:5. After leaching for 1.5 hours, pass 7 / 8 of the upper layer liquid into the liquid storage tank, pour the lower layer liquid into the leaching tank, and add sulfuric acid according to the mass ratio of 1:0.05, and keep stirring. After 1.5 hours, the secondary leachate was introduced into the liquid storage tank and mixed with the primary leachate, and the leachate in the liquid storage tank was analyzed for all ele...

Embodiment 2

[0037] Put the pyrolusite and pyrite into the ball mill for ball milling, respectively sieve to obtain the ore powder with a particle size of 200 mesh; mix the pyrolusite powder and the pyrite powder with a molar ratio of 1:3, and load them into 4 Among the reaction tubes with gas, all the reaction tubes were placed in the furnace to carry out constant-temperature calcination with a flame insulation, the calcination temperature was 600°C, and the calcination time was 3.5 hours. Import the roasted clinker into the pool, and add clear water to leaching the ore at a mass ratio of 1:5.5. After leaching for 2 hours, pass 9 / 10 of the upper layer liquid into the liquid storage tank, pour the lower layer liquid into the leaching tank, and add sulfuric acid according to the mass ratio of 1:0.06, and keep stirring. After 1 hour, the secondary leachate was introduced into the liquid storage tank and mixed with the primary leachate, and the leachate in the liquid storage tank was analyzed...

Embodiment 3

[0039] Put the pyrolusite and pyrite into the ball mill for ball milling respectively, and sieve to obtain the ore powder with a particle size of 250 mesh; mix the pyrolusite powder and pyrite powder with a molar ratio of 1:4, and load them into 4 Among the reaction tubes with gas, all the reaction tubes were placed in the furnace for flame insulation and constant temperature calcination, the calcination temperature was 700°C, and the calcination time was 4 hours. Import the roasted clinker into the pool, and add clear water to leaching the ore at a mass ratio of 1:6. After leaching for 2.5 hours, pass 9 / 10 of the upper layer liquid into the liquid storage tank, pour the lower layer liquid into the leaching tank, and add sulfuric acid according to the mass ratio of 1:0.07, and keep stirring. After 1 hour, the secondary leachate was introduced into the liquid storage tank and mixed with the primary leachate, and the leachate in the liquid storage tank was analyzed for all eleme...

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

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for producing electrolytic manganese metal. The method comprises the following steps: respectively ball-milling high-phosphorus high-iron manganese ore and iron pyrite into powder, and mixing the powder according to a proportion for sulfating roasting; leaching the mixture treated by means of sulfating roasting with water as a leaching agent to obtain manganese sulfate solution; removing impurities from the manganese sulfate solution to obtain manganese sulfate electrolyte; adding an electrolysis additive into the manganese sulfate electrolyte, and simultaneously adding an ammonium salt as a buffering agent into the solution; putting the electrolyte into an electrolytic cell, providing direct current and keeping the temperature constant to play an electrochromatography effect so as to separate out manganese metal on a cathode; passivating, water-washing, drying and removing the manganese metal that is separated out, and thus obtaining an electrolytic manganese metal product. The method disclosed by the invention has a short technological process, low energy consumption and small environmental pollution, so the method is suitable for development and application of high-iron high-phosphorus lean manganese ores and the like.

Description

technical field [0001] The invention relates to a method for producing electrolytic metal manganese, in particular to a method for preparing electrolytic metal manganese by using low-grade pyrolusite. Background technique [0002] At present, there are generally two domestic and international methods for deep processing of manganese: one is to directly use the pyrometallurgy process to produce manganese alloy products for rich ores with low harmful impurities (such as phosphorus and sulfur); Manganese carbonate and partially oxidized manganese ore are generally produced by hydrometallurgical technology to produce a series of manganese salt products. However, with the mining of manganese ore resources year by year, the high-quality manganese ore with high grade and low impurity is increasingly depleted. The existing low-grade manganese ore such as high-iron, high-phosphorus manganese ore and pyrolusite is a typical complex manganese ore with high impurity content and difficu...

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
IPC IPC(8): C22B1/06C22B3/04C25C1/10C22B47/00
Inventor 林荔琍唐臻吴坚
Owner 松桃三和锰业集团有限责任公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com