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

Method for preparing manganese sulfate electrolyte

A technology of manganese sulfate and electrolyte, which is applied in photography technology, equipment, photography auxiliary technology, etc., can solve the problems of affecting product quality, inability to use fire method, and high impurity content, so as to prevent impurities from entering the solution, reduce the burden of purification, The effect of increasing the leaching rate

Active Publication Date: 2014-04-09
LIUZHOU KAITONG NEW MATERIAL TECH CO LTD
View PDF1 Cites 1 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 preparing manganese sulfate electrolyte

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 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

[0030] 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

[0032]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 elemen...

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 size (mesh)aaaaaaaaaa
particle size (mesh)aaaaaaaaaa
particle size (mesh)aaaaaaaaaa
Login to View More

Abstract

The invention relates to a method for preparing a manganese sulfate electrolyte. The method comprises the following steps: respectively putting high-phosphorus high-iron manganese ore and iron pyrite into a ball mill; ball-milling the high-phosphorus high-iron manganese ore and iron pyrite into powder, mixing the powder according to a proportion and then performing sulfating muffle roasting; leaching the manganese ore treated by means of sulfating roasting with water as a leaching agent, and thereafter leaching a part of liquid in the next layer with sulfuric acid; then removing impurities from the manganese sulfate solution to obtain qualified manganese sulfate electrolyte. By adopting water and a little sulfuric acid as the leaching agent, the method disclosed by the invention not only increases the extraction rate of manganese but also effectively inhibits leaching of phosphorus and iron, prevents impurities from entering the solution, improves the quality of subsequent products, not only greatly reduces the purification burden to the manganese sulfate solution during subsequent operation, and also realizes preparation by using raw materials including low-grade pyrolusite and the like.

Description

technical field [0001] The invention relates to a method for preparing manganese sulfate electrolyte, in particular to a method for preparing manganese sulfate electrolyte by wet method using pyrolusite as raw material. 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 ...

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): C22B3/08C22B1/06C22B47/00C25C1/10
Inventor 林荔琍唐臻吴坚
Owner LIUZHOU KAITONG NEW MATERIAL TECH CO LTD
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