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

Method for preparing manganese acetate from electrolytic manganese metal leaching residue

A technology for electrolysis of manganese metal and manganese acetate, applied in the directions of carboxylate preparation, organic chemistry, etc., can solve the problems of unpublished preparation of manganese acetate, etc., and achieve the effects of significant ecological and environmental benefits, broad market prospects, and major economic benefits.

Active Publication Date: 2011-11-16
CHANGSHA RES INST OF MINING & METALLURGY
View PDF7 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] However, there is no relevant report on preparing manganese acetate from electrolytic manganese metal waste residue in the prior art

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 acetate from electrolytic manganese metal leaching residue
  • Method for preparing manganese acetate from electrolytic manganese metal leaching residue
  • Method for preparing manganese acetate from electrolytic manganese metal leaching residue

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0028] a kind of like figure 1 Shown the present invention prepares the method for manganese acetate with electrolytic manganese metal leaching slag, comprises the following steps:

[0029] 1. Preparation of manganese carbonate: using the washing solution of electrolytic manganese metal leaching slag in a certain electrolytic manganese process as raw material, after testing, the washing solution contained Mn 37.82g / L, containing (NH 4 ) 2 SO 4 91.82g / L, and then use ammonium bicarbonate to precipitate the washing solution, the amount of ammonium bicarbonate is 1.1 times of the theoretical amount, the temperature during precipitation is 40°C, and the stirring precipitation time is 30min. After filtration and separation, manganese carbonate precipitation and precipitation residue are obtained. liquid (precipitation residue mainly contains ammonium sulfate). The reaction principle of this step is:

[0030] MnSO 4+2NH 4 HCO 3 =MnCO 3 +(NH 4 ) 2 SO 4 +H 2 O+CO 2 ↑.

...

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
densityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing manganese acetate from electrolytic manganese metal leaching residues. The method comprises the following steps: using washing liquid of electrolytic manganese metal leaching residues as a raw material, depositing the washing liquid with carbonate and carrying out separation so as to obtain manganese carbonate deposition and deposition residual liquid; dissolving manganese carbonate deposition with sulfuric acid to obtain a manganese sulfate solution; purifying the manganese sulfate solution to obtain a high purity manganese sulfate solution and depositing the high purity manganese sulfate solution with carbonate to obtain high purity manganese carbonate; acidifying the high purity manganese carbonate with acetic acid to obtain a manganese acetate solution; precipitating SO4<2-> in the manganese acetate solution with barium acetate to obtain a pure manganese acetate solution and carrying out evaporative crystallization and drying to obtain a high purity product of manganese acetate. The method provided in the invention has the advantages of resource conservation, environment-friendliness, good economic benefits, a simple process, low investment cost, etc.

Description

technical field [0001] The invention belongs to the technical field of hydrometallurgy and chemical production, and in particular relates to a preparation method of manganese acetate. Background technique [0002] At present, the annual production capacity of electrolytic manganese in my country has exceeded 2.2 million tons, and the actual output is about 1.2 million tons. It is the largest producer and consumer of electrolytic manganese in the world, and domestic production accounts for more than 98% of the world's total production. Electrolytic manganese metal is an industry with high material consumption and high energy consumption. The rapid growth of the industry has caused a large consumption of resources on the one hand, and on the other hand, the production of electrolytic manganese metal has also brought great pollution to the environment. The surrounding environment of the electrolytic manganese plant is under pressure. getting bigger. [0003] About 8 tons of ma...

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): C07C53/10C07C51/41
Inventor 李先柏陈一波许彬段兴无徐光前谭岳詹锡松习小明
Owner CHANGSHA RES INST OF MINING & METALLURGY
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