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

Method for recycling electrolytic manganese metal anode waste liquor

A technology for the recovery and treatment of electrolytic manganese metal, applied in metallurgical wastewater treatment, chemical instruments and methods, multi-stage water/sewage treatment, etc., can solve the problems of electrolytic manganese metal crystallization, increased impurity content, poor quality, etc., and achieve improvement Effects of crystallization, reduction of production cost, and increase in yield

Inactive Publication Date: 2013-12-25
NINGXIA TIANYUAN MANGANESE LIMITED
View PDF3 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using the above method, long-term recycling will cause the impurity content in the anolyte liquid phase system to increase continuously, which will eventually lead to serious crystallization in the production process of e

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 1

[0029] name mn (NH 4 ) 2 SO 4 H + temperature parameter 18.8g / L 94.5g / L 19.61g / L 26℃

[0030] name Zn co Ni Fe Cu Ca Mg content 0.0022 0.0001 0.0001 0.017 0.007 1.39 21.6

[0031] (3) Control the reaction temperature at 50°C, according to the manganese content in the anolyte, press n (Mn): n (NH 4 HCO 3 )=1:2 input NH 4 HCO 3 .

[0032] (4) After reacting for 1 hour, carry out pressure filtration to obtain the solution of ammonium sulfate and the solid matter of manganese carbonate to achieve the purpose of removing manganese in the liquid, obtain the ammonium sulfate filtrate for sample analysis, and wash the manganese carbonate slag to obtain relatively Pure manganese carbonate is recycled.

[0033] name mn (NH 4 ) 2 SO 4 pH Parameters (g / L) 0.8 123 6.5

[0034] name Zn co Ni Fe Cu Ca Mg Contentg / L 0.0017 0.0009 0.0047 0.014 0.00...

Embodiment 2

[0043] name mn (NH 4 ) 2 SO 4 H + temperature parameter 18.8g / L 94.5g / L 19.61g / L 26℃

[0044] name Zn co Ni Fe Cu Ca Mg content 0.0022 0.0001 0.0001 0.017 0.007 1.39 21.6

[0045] (3) Control the reaction temperature at 57 ° C, according to the manganese content in the anolyte according to n (Mn): n (NH 4 HCO 3 )=1:2 input NH 4 HCO 3 .

[0046] (4) After reacting for 1 hour, carry out pressure filtration to obtain the solution of ammonium sulfate and the solid matter of manganese carbonate to achieve the purpose of removing manganese in the liquid, obtain the ammonium sulfate filtrate for sample analysis, and wash the manganese carbonate slag to obtain relatively Pure manganese carbonate is recycled.

[0047] name mn (NH 4 ) 2 SO 4 pH Parameters (g / L) 0.8 123 6.5

[0048] name Zn co Ni Fe Cu Ca Mg Contentg / L 0.0017 0.0009 0.0047 0.0...

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 method for recycling electrolytic manganese metal anode waste liquor. The method for recycling the electrolytic manganese metal anode waste liquor is characterized by sequentially comprising the following recycling steps: (1) after filtering anode waste liquor, adding ammonia water to regulate the pH value to be neutral; (2) adding NH4HCO and reacting; (3) carrying out filter pressing, so as to obtain an ammonium sulphate solution and manganese carbonate slag; washing a manganese carbonate slag phase to obtain manganese carbonate; (4) regulating the pH value of clear liquid, namely the ammonium sulphate solution, obtained after filter pressing, adding oxalic acid, and reacting; (5) carrying out the filter pressing, so as to obtain magnesium oxalate slag and ammonium sulphate filter liquor; washing the magnesium oxalate slag, so as to obtain magnesium oxalate. By adopting the method for recycling the electrolytic manganese metal anode waste liquor, manganese, magnesium and ammonium in the anode waste liquor are recycled, the problems existing in a long-term anode liquor recycling process are solved, abnormal phenomena in production are reduced, an electrolyte crystallization phenomenon is overcome, the yield is increased, the quality is improved, and the production cost is reduced.

Description

technical field [0001] The invention discloses a method for recycling and treating waste liquid of electrolytic metal manganese anode. The invention relates to an improvement of a method for treating waste electrolytic metal manganese anolyte for wet production of metal manganese. Background technique [0002] In the production process of electrolytic manganese metal, a large amount of waste anolyte will be produced. At present, the treatment measure for waste anolyte is to return the produced anolyte to the liquid production process to continue liquid production, so as to be recycled. Using the above method, long-term recycling will cause the impurity content in the anolyte liquid phase system to increase continuously, which will eventually lead to serious crystallization in the production process of electrolytic manganese metal, low yield and poor quality. Therefore, how to solve the above problems has become the current electrolytic process. Difficulties that urgently n...

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): C02F9/04C01G45/00C07C55/07C07C51/41C02F103/16
Inventor 贾天将
Owner NINGXIA TIANYUAN MANGANESE LIMITED
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