A method for enriching vanadium in vanadium-containing stone coal and controlling the vanadium-enriched phase

A technology of vanadium-containing stone coal and enrichment phase, which is applied in the field of vanadium pre-enrichment, can solve the problem of low vanadium recovery rate, and achieve the effects of low pollution, wide treatment range and good adaptability

Active Publication Date: 2017-12-08
UNIV OF SCI & TECH BEIJING
View PDF1 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can only recover the fine-grained vanadium-containing illite part, but cannot recover the coarse-grained vanadium-containing muscovite, resulting in a low vanadium recovery rate.

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
  • A method for enriching vanadium in vanadium-containing stone coal and controlling the vanadium-enriched phase
  • A method for enriching vanadium in vanadium-containing stone coal and controlling the vanadium-enriched phase
  • A method for enriching vanadium in vanadium-containing stone coal and controlling the vanadium-enriched phase

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to verify the feasibility of the present invention, the content of the present invention is further described below in conjunction with examples, but the content of the present invention is not limited to the following examples. Simple modifications made according to the essential content of the present invention shall be covered within the protection scope of the present invention.

[0033]What the raw material in the present embodiment selects is the vanadium-containing stone coal mine of a certain place in Yichang, Hubei. The content of vanadium in the ore is about 0.5% to 0.7%, vanadium is mainly distributed in mica minerals, and mica minerals account for about 20% to 30% of the minerals. The content of C in the ore is 5.75%, of which 5.02% exists in the form of carbonate, and the amorphous carbon only accounts for 0.73%, and it closely coexists with the quartz in the ore. From the calculation of reaction (5), it can be seen that when the mass of vanadium-...

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 enrichment of vanadium in vanadium-containing stone coal and V-concentrating phase regulation. The method includes: taking stone coal vanadium ore as the raw material, using Fe2O3 and carbon powder as the additives; carrying out crushing and mixing to obtain pellets, performing roasting at a temperature of 900-1100DEG C so as to obtain a V-concentrating phase composed of Fe, V and O in stone coal. The method is characterized in that: (1) vanadium is enriched into the V-concentrating phase composed of Fe, V and O by a high temperature chemical process, and compared with the conventional physical beneficiation method, the enrichment efficiency is higher; (2) the adding amount of carbon powder can be adjusted according to the carbon content of stone coal, the adaptability is good, and the treatment scope is wider; and (3) by changing the roasting conditions, V-concentrating phase regulation can be realized. The method provided by the invention not only can the V-concentrating phase with high vanadium content and particle size suitable for subsequent separation, but also can control the V-concentrating phase, has the advantages of wide application range and high enrichment efficiency, and is suitable for application in the technical field of vanadium preconcentration in vanadium-containing stone coal.

Description

technical field [0001] The invention belongs to the technical field of pre-enrichment of vanadium in vanadium-containing resources, and specifically relates to a method for enriching vanadium elements with low content, scattered distribution and complex occurrence state in vanadium-containing stone coal, and regulating the vanadium-enriched phase Methods. Background technique [0002] Vanadium-containing stone coal is an important vanadium resource in my country. The proven vanadium-containing stone coal accounts for 87% of my country's total vanadium reserves. Therefore, extracting vanadium from vanadium-containing stone coal is an important way to obtain vanadium resources. way. However, vanadium in vanadium-bearing stone coal has low grade, scattered distribution, and complicated vanadium occurrence state. The vanadium content is expressed as V 2 o 5 The calculation is only about 1%. Therefore, direct leaching of vanadium from vanadium-containing stone coal inevitably ...

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 Patents(China)
IPC IPC(8): C22B1/02C22B34/22
CPCC22B1/02C22B34/22
Inventor 闫柏军汪大亚吴六顺王珏董元篪
Owner UNIV OF SCI & TECH BEIJING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap