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

Steel slag tailings vanadium extracting process

A process method and tailings technology, applied in the vanadium-containing steel slag tailings extraction process field, can solve the problems of unscientific raw material ratio, unstable vanadium content, unstable recovery rate, etc., and achieve a simple and easy-to-operate vanadium extraction process, Reduce the whole process time and reduce the effect of smelting environment optimization

Active Publication Date: 2014-03-05
LIANGSHAN RUIJING ENVIRONMENTAL PROTECTION RESOURCE DEV
View PDF4 Cites 8 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, because the raw material structure is relatively single, carrier B is not used in the reduction process, and the ratio of various raw materials is not scientific enough, so the recovery rate of vanadium and iron is unstable and fluctuates greatly, and the vanadium content in the vanadium-containing pig iron is unstable. The lowest vanadium recovery rate is only 75%, and the lowest iron recovery rate is only 80%

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
  • Steel slag tailings vanadium extracting process
  • Steel slag tailings vanadium extracting process
  • Steel slag tailings vanadium extracting process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0024] The method for extracting vanadium from steel slag tailings provided by the invention has the following steps:

[0025] A, batching: use steel slag tailings as raw material, add and use with auxiliary material A and carrier B, and its weight percentage is

[0026] Steel slag tailings 40%~65%, auxiliary material A 14%~20%, carrier B 15%~46%;

[0027] B. Put the ingredients into the submerged arc furnace for reduction smelting to obtain low-vanadium pig iron and reduced water slag;

[0028] C. Hot charge the low-vanadium pig iron obtained in step B into a converter in a liquid state, add cooling medium C to extract vanadium by oxygen blowing, and obtain vanadium slag and semi-steel.

[0029] Wherein, the auxiliary material A is composed of coke, silica, and fluorite according to the following weight percentages: 40%-50% of coke, 45%-55% of silica, and 4%-5% of fluorite. The main function is to provide a stable and good reducing environment.

[0030] The carrier B is an...

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 belongs to the fields of metallurgy and solid waste comprehensive utilization, and in particular relates to a method for extracting vanadium in vanadium-containing steel slag tailings. The invention aims at providing a high-yield and stable process for recovering vanadium and iron in steel slag for comprehensive utilization, value improvement and vanadium resource recovery of low-vanadium steel slag, wherein recovery rates of both vanadium and iron are above 90%. The process comprises steps of A, preparing materials: combing raw material low-vanadium steel slag tailings with an auxiliary material A and a load vector B, wherein the low-vanadium steel slag tailings account for 40-65%, the auxiliary material A accounts for 14-20% and the load vector B accounts for 15-46%; B, reducing and melting various materials in a submerged arc furnace to obtain low-vanadium pig iron and reduced water slag; and C, hot-charging the low-vanadium pig iron obtained from the step B under a liquid status to a converter, adding a coolant C, and implementing oxygen blowing vanadium extraction to obtain vanadium slag and semi-steel. The vanadium extracting process adopts many waste materials in whole using process, and is short in flow, short in time, high in vanadium recovery rate, free from newly generated solid waste, free from discharge of tailings, and energy-saving, and the environment is protected.

Description

technical field [0001] The invention belongs to the field of comprehensive utilization of metallurgy and solid waste, and in particular relates to a process method for extracting vanadium from tailings of vanadium-containing steel slag. Background technique [0002] At present, there are mainly three kinds of vanadium extraction from steel slag at home and abroad, wet vanadium extraction, pyrovanadium extraction and solvent extraction. Wet vanadium extraction has developed well, and there are three domestic patents for wet vanadium extraction from steel slag. The process of wet vanadium extraction from steel slag includes crushing, roasting, leaching, precipitation and pyrolysis. However, the wet vanadium extraction requires a large amount of acid solution, which is easy to cause pollution, and has high requirements on the operation process, otherwise the loss rate of vanadium will be high. [0003] The process route of solvent extraction method is generally: preparation o...

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): C22B7/04C22B34/22C21B3/04
CPCY02P10/20Y02W30/50
Inventor 戚明强孙堂钦
Owner LIANGSHAN RUIJING ENVIRONMENTAL PROTECTION RESOURCE DEV
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