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

Deep phosphorus removal method in acidic vanadium extraction solution

A solution and acidic technology, which is applied in the field of deep phosphorus removal in acidic vanadium extraction solution, can solve the adverse effects of polyacid radicals and other problems, achieve the effects of reduced loss of vanadium, poor stability, and improved metal recovery rate

Active Publication Date: 2019-11-08
CHONGQING UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the above-mentioned problems existing in the prior art, the present invention aims to overcome the difficult problems in the existing phosphorus removal process. The technical problem to be solved is the adverse effect of polyacid radicals on phosphorus removal in the acidic system, and provides an acidic vanadium extraction solution. Deep phosphorus removal method

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
  • Deep phosphorus removal method in acidic vanadium extraction solution
  • Deep phosphorus removal method in acidic vanadium extraction solution
  • Deep phosphorus removal method in acidic vanadium extraction solution

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] The experimental raw material in this example, that is, the acidic vanadium extraction solution is the leaching solution obtained from vanadium slag through calcification roasting-acid leaching, containing 21g / L of vanadium and 1.4g / L of phosphorus, and the pH value of the solution is 2.6. Has a high recycling value.

[0040] A method for deep phosphorus removal in an acidic vanadium extraction solution, comprising the following steps:

[0041] S1: Add a depolymerizing agent to the solution, the depolymerizing agent is methylamine, the addition amount is 6mg / L, and stir evenly;

[0042] S2: Heat the solution of S1 after adding the depolymerization agent to 48°C, add a phosphorus removal agent to the solution, the phosphorus removal agent is aluminum sulfate, the addition amount is 0.8 times the phosphorus concentration, and the reaction time is 60 minutes.

[0043] After the reaction, it was measured that the phosphorus removal rate was 99.3%, the vanadium loss rate wa...

Embodiment 2

[0045] The experimental raw material in this example is the leaching solution obtained from vanadium slag through calcification roasting-acid leaching, containing 15g / L of vanadium and 0.8g / L of phosphorus, and the pH value of the solution is 3.2. Has a high recycling value.

[0046] A method for deep phosphorus removal in an acidic vanadium extraction solution, comprising the following steps:

[0047] S1: Add a depolymerizing agent to the solution, the depolymerizing agent is a compound of ethylamine and ethylenediamine, the mass ratio of ethylamine and ethylenediamine is 1:1, the addition amount is 5mg / L, and stir evenly;

[0048] S2: Heat the solution of S1 after adding the depolymerization agent to 50°C, add a phosphorus removal agent to the solution, the phosphorus removal agent is iron sulfate, the addition amount is 1.0 times the phosphorus concentration, and the reaction time is 80 minutes.

[0049] After the reaction, it was measured that the phosphorus removal rate ...

Embodiment 6

[0053] In Example 6, the depolymerizing agent is a compound of methylamine and ethylamine, and the mass ratio of methylamine and ethylamine is 1:1.

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 deep phosphorus removal method in an acidic vanadium extraction solution. The method comprises the following steps that S1, a depolymerization agent is added into the acidicvanadium extraction solution, the mixture is uniformly mixed to be used in a subsequent phosphorus removal process; and S2, a phosphorus removal agent is added into the solution obtained in S1, and the mixture is uniformly mixed for phosphorus removal. The method has the advantages of simplicity, high efficiency, cleanness and the like, compared with a phosphorus removal process without adding the depolymerization agent, the phosphorus removal rate is high, the vanadium loss is small, the phosphorus-vanadium separation degree is high, the deep phosphorus removal of the acid vanadium extraction solution can be realized, the loss of vanadium in the phosphorus removal process is reduced, and the resource utilization rate is improved.

Description

technical field [0001] The invention relates to the technical field of nonferrous metal hydrometallurgy, in particular to a method for deep phosphorus removal in an acidic vanadium extraction solution. Background technique [0002] Vanadium is an important rare metal element with high melting point. It is widely used in steel, chemical industry, aerospace and other industries. It is known as "modern industrial monosodium glutamate" and is one of the indispensable raw materials for the development of modern industry. With the consumption of resources and the development of industry, the vanadium metallurgical industry is facing the dual pressure of complex raw materials and high-quality products, and the requirements for vanadium recovery rate and product purity are getting higher and higher. [0003] Impurity elements will seriously affect the vanadium deposition rate of the vanadium-containing solution and the purity of the vanadium deposition product, especially phosphorus...

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): C22B7/00C22B34/22
CPCC22B7/006C22B34/22Y02P10/20
Inventor 辛云涛李刚吕学伟白晨光向俊一
Owner CHONGQING UNIV
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