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

Method of recovering V2O5 from Bayer process mother liquid

A technology of vanadium pentoxide and Bayer method, applied in vanadium oxide and other directions, can solve the problems of unrecovered recycling and high energy consumption, and achieve the effects of easy operation of equipment, simple process and low investment.

Active Publication Date: 2007-01-03
GUIZHOU BRANCH CHINA ALUMINUM IND
View PDF0 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The process consumes a lot of energy and has not been realized in the process of recovering vanadium pentoxide

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 of recovering V2O5 from Bayer process mother liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Precipitation of vanadium from seed liquid mother liquor: in N K Add 10 g / L of calcium oxide to the 160 g / L Bayer process seed separation mother liquor, stir and react for 2 hours at a temperature of 108°C, and then filter the precipitate to obtain the vanadium-containing precipitate, which contains 44.5% of CaO , Al 2 O 3 24%, V 2 O 5 0.78%.

Embodiment 2

[0023] Precipitation of vanadium from seed liquid mother liquor: in N K Add 18 g / L of calcium oxide to the 160 g / L Bayer process seed separation mother liquor, stir and react for 1 hour at a temperature of 90°C, and then filter the precipitate to obtain a vanadium-containing precipitate, which contains 46.9% CaO , Al 2 O 3 23.4%, V 2 O 5 0.83%.

Embodiment 3

[0025] Precipitation of vanadium from seed liquid mother liquor: in N K Add 30 g / L of calcium oxide to the 160 g / L Bayer process seed separation mother liquor, stir and react for 0.5 hours at a temperature of 103°C, and then filter the precipitate to obtain a vanadium-containing precipitate, which contains 48.2% CaO , Al 2 O 3 21.4%, V 2 O 5 0.73%.

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 present invention relates to the recovery of valuable matter from the intermediate solution of alumina production, and is especially method of recovering V2O5 from Bayer process mother liquid. The recovering method includes the steps of depositing vanadium compound, leaching the precipitate, depositing the leached liquid, secondary reverse leaching of the precipitate, neutralizing the leached liquid and hydrolysis. The present invention recovers vanadium in the mode of V2O5 crystal, and is simple and low in cost.

Description

Technical field [0001] A method for recovering vanadium pentoxide from a mother liquor of the Bayer process relates to a method for recovering a valuable substance vanadium pentoxide from an intermediate solution produced in the alumina industry. Background technique [0002] Vanadium is an important industrial raw material. my country is rich in vanadium deposits. In addition to vanadium-thorium magnetite, which is the main vanadium ore, there is also a type of low-grade siliceous vanadium ore, which can also be used as a raw material for vanadium extraction. The grade of vanadium in the ore is about 1%, and the other elements are of no use value. At present, the extraction of vanadium from this type of mine has been using the traditional sodiumization method for a long time, and the pollution of the three wastes is serious. Someone has studied the new technology of calcification and roasting to extract vanadium from siliceous vanadium ore, in order to solve the problem of serio...

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): C01G31/02
Inventor 白万全杨巧芳尹中林
Owner GUIZHOU BRANCH CHINA ALUMINUM IND
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