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

Method for preparing V2O5 nano powder by using vanadium redox battery failure electrolyte

A technology for electrolyte preparation and V2O5, which is applied in the field of vanadium extraction, can solve the problems of excessive vanadium ion concentration and sulfuric acid concentration, mismatch of vanadium ion valence state, unusability, etc., and achieve simple process method, easy popularization and application, and low cost Effect

Inactive Publication Date: 2019-05-07
CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST CO LTD
View PDF2 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After the vanadium battery electrolyte has been recycled for a long time, the concentration of vanadium ions and sulfuric acid seriously exceeds the standard, the valence state of vanadium ions does not match, and even precipitation occurs, making it unusable

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 V2O5 nano powder by using vanadium redox battery failure electrolyte

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Prepare 10L of pentavalent electrolyte solution diluted with deionized water through pre-charging and pre-oxidation for later use (1 # Electrolyte), where [VO 2 - ] is 0.8M~1.2M, VO 2- <0.1g / L, the electrolyte should be stored at 0-25°C;

[0031] Measure 500mL of 1 with a total vanadium concentration of 0.8M # Add 20.4g of sodium dodecylbenzenesulfonate to the electrolyte solution, transfer the solution to a hydrothermal reaction kettle, seal it and place it in an oven, and keep it warm at 100°C for 8 hours. After the reaction, use deionized water and anhydrous Water and ethanol were centrifuged and washed twice, and dried at a temperature of 50° C. for 8 hours to obtain 22.12 g of vanadium pentoxide powder.

[0032] The particle size range of the vanadium pentoxide powder obtained in this example is 100-120 nm, and the vanadium yield is 60.77%.

Embodiment 2

[0034] Prepare 10L of pentavalent electrolyte solution diluted with deionized water through pre-charging and pre-oxidation for later use (1 # Electrolyte), where [VO 2 - ] is 0.8M~1.2M, VO2- <0.1g / L, the electrolyte should be stored at 0-25°C;

[0035] Measure 500mL of 1.0M total vanadium concentration # Electrolyte, add cetyltrimethylammonium bromide 7.5g, transfer the solution into a hydrothermal reaction kettle, seal it and place it in an oven, keep it warm at 110°C for 16h, after the reaction, wash it with deionized water and anhydrous ethanol, respectively, to be washed twice by centrifugation, and dried at a temperature of 60° C. for 12 hours to obtain 32.72 g of vanadium pentoxide powder.

[0036] The particle size range of the vanadium pentoxide powder obtained in this example is 110-150 nm, and the vanadium yield is 71.91%.

Embodiment 3

[0038] Prepare 10L of pentavalent electrolyte solution diluted with deionized water through pre-charging and pre-oxidation for later use (1 # Electrolyte), where [VO 2 - ] is 0.8M~1.2M, VO 2- <0.1g / L, the electrolyte should be stored at 0-25°C;

[0039] Measure 500mL of 1.2M total vanadium concentration # Electrolyte, add 0.5g of sodium dodecylsulfonate, transfer the solution into a hydrothermal reaction kettle, seal it and put it in an oven, keep it at a temperature of 120°C for 24 hours, after the reaction, use deionized water and anhydrous Each was centrifuged and washed twice with ethanol, and dried at a temperature of 80° C. for 10 hours to obtain 43.07 g of vanadium pentoxide powder.

[0040] The particle size range of the vanadium pentoxide powder obtained in this embodiment is 150-200 nm, and the vanadium yield is 78.88%.

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 diameteraaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of vanadium extraction, and particularly relates to a method for preparing V2O5 nano powder by using a vanadium redox battery failure electrolyte. The technical problem to be solved by the invention is to provide the method for preparing the V2O5 nanopowder by using the vanadium redox battery failure electrolyte. The method comprises the following steps: performing oxidization on the vanadium redox battery failure positive-electrode electrolyte, performing dilution, adding a surfactant, and performing a closed heat-preservation reaction at 100-120 DEG C, so as to obtain the V2O5 nano powder. The method provided by the invention fully utilizes waste resources, and the recovered vanadium pentoxide nano powder has high purity and a high yield.

Description

technical field [0001] The invention belongs to the technical field of vanadium extraction, and in particular relates to the preparation of V 2 o 5 nanopowder method. Background technique [0002] The full name of vanadium battery is vanadium redox flow battery, which has a series of advantages such as long service life, large capacity, high power and high safety performance. Vanadium batteries can be used as emergency power supply facilities in places such as hospitals, factories, military bases, and office buildings, and can also be used as power supply systems for communications, radio relay stations, etc. , railway information instructions, military devices, etc., can be used as an onboard power supply for industrial trucks, forklifts, delivery vehicles, buses, submarines and other vehicles, and is also suitable for household power supply systems in remote areas and supporting energy storage equipment for solar and wind energy. In particular, it can be used as a large...

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): C01G31/02B82Y40/00
Inventor 刘波彭穗杨晓李道玉
Owner CHENGDU ADVANCED METAL MATERIALS IND TECH RES INST 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