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

A method for extracting vanadium from high-carbon stone coal

A stone coal and high-carbon technology, applied in the field of vanadium extraction, can solve the problems of cumbersome and time-consuming procedures, exhaust gas pollution of the environment, and easily damaged mixers, etc., to achieve the effect of solving cumbersome procedures, realizing zero emission of exhaust gas, and simplifying the production process

Active Publication Date: 2020-09-08
HUBEI HAOHUA BIOTECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the shortcomings of the existing sulfuric acid aging method, the present invention provides a method for extracting vanadium from high-carbon stone coal through a new aging process, aiming to solve the problems existing in the existing vanadium extraction technology from carbonaceous stone coal. The ore needs to be dried during grinding, the grinding output is low, the process is cumbersome and time-consuming, the mixer is easily damaged, and the exhaust gas pollutes the environment, etc.

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 extracting vanadium from high-carbon stone coal
  • A method for extracting vanadium from high-carbon stone coal

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] (1) get the block that screened by vibrating screen is less than 10cm, water content is 80 tons of high carbon stone coal of 6wt% (V 2 o 5 The content of C is 1.13wt%, total C content 22.67wt%), adds 24 tons of circulating water in ball mill 17 and carries out wet grinding 10min, and the grinding output of high-carbon stone coal is 25 tons / hour, and the obtained granularity is 80 purpose pulp.

[0059] (2) open the slurry control valve 301, the slurry is continuously flowed into the 1 airtight pool by the mixture delivery pipeline 1701, and simultaneously open the sulfuric acid control valve 302 and add 32 tons of concentrated sulfuric acid (approved with the sulfuric acid metering pump 11) in the airtight pool 1, The two are mixed by themselves to obtain a slurry-like mixture; when the pulp and concentrated sulfuric acid are input, the suction port 2 of the closed pool 1 is closed, the exhaust control valve 501 and the exhaust fan 16 are opened, and the waste gas in t...

Embodiment 2

[0066] (1) 90 tons (V 2 o 5 The content of C is 0.92wt%, and total C content is 18.96wt%), adds 32.4 tons of circulating water in ball mill 17 and carries out wet grinding 15min, and the grinding output of high-carbon stone coal is 25 tons / hour, and the particle size obtained is 100 mesh pulp.

[0067] (2) open the slurry control valve 301, the slurry is continuously flowed into the closed pool 1 through the mixture delivery pipeline 1701, and simultaneously open the sulfuric acid control valve 302 and add 36 tons of concentrated sulfuric acid (approved with the sulfuric acid metering pump 11) in the closed pool 1, The two are mixed by themselves to obtain a slurry-like mixture; when the pulp and concentrated sulfuric acid are input, the suction port 2 of the closed pool 1 is closed, the exhaust control valve 501 and the exhaust fan 16 are opened, and the waste gas in the closed pool 1 is transported to the shower. Washing tower 7 performs absorption treatment.

[0068](3) ...

Embodiment 3

[0074] (1) 100 tons (V 2 o 5 The content of C is 1.34wt%, and the total C content is 34.74%). Add 33 tons of circulating water to the ball mill 17 and carry out wet grinding for 20 minutes. The grinding output of high-carbon stone coal is 25 tons / hour, and the particle size obtained is 120 mesh pulp .

[0075] (2) open the pulp control valve 301, the pulp is continuously flowed into the closed pool 1 by the mixture delivery pipeline 1701, and simultaneously open the sulfuric acid control valve 302 and add 30 tons of concentrated sulfuric acid (approved with the sulfuric acid metering pump 11) in the closed pool 1, The two are mixed by themselves to obtain a muddy mixture; when the pulp and concentrated sulfuric acid are input, the suction port of the closed pool 1 is closed, the exhaust control valve 501 and the exhaust fan 16 are opened, and the waste gas in the closed pool 1 is transported to the rinsing tank. Tower 7 performs absorption treatment.

[0076] (3) When the h...

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 sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for extracting vanadium from high-carbon stone coal, which comprises the following steps: performing wet grinding on the raw ore in a ball mill, transporting the obtained pulp to a closed pool, mixing with concentrated sulfuric acid, and Mature the slimy mixture at 180°C; add water directly to the closed pool to leach vanadium after ripening, and obtain a blue vanadium leaching solution after solid-liquid separation, which is used to prepare V 2 o 5 product. The invention does not need to dry the raw ore, and directly performs wet grinding; the matured mixture is in the form of thin mud, which is easy to add water to leach vanadium; the aging process adopts a heat-insulating closed pool facility, which effectively improves the vanadium leaching rate; The invention cooperates with the rinsing tower to completely absorb the waste gas produced in the curing process, and prevents the pollution of the environment. The invention uses the slurry-like mixture to carry out the slaking reaction, which overcomes the problems of cumbersome process, high cost and environmental pollution existing in the existing concentrated sulfuric acid slaking technology for extracting vanadium.

Description

technical field [0001] The invention belongs to the technical field of vanadium extraction by wet method, and more specifically relates to a method for extracting vanadium from high-carbon stone coal. Background technique [0002] Stone coal is a unique vanadium resource. Due to its different ore-forming conditions, the minerals are mixed with pyrite, dolomite, organic organisms and other substances, and have the characteristics of high ash, high sulfur and low heat. In a certain place in Sichuan, there is a vanadium-containing carbonaceous stone coal, which is mainly carbon, followed by quartz, aluminosilicate phase, pyrite, etc., and its carbon content is relatively high, generally 10-25%. Up to 40%. This carbonaceous stone coal is usually used for combustion to generate electricity, and the resulting ash contains vanadium, which can be leached out by various methods. However, the efficiency of leaching vanadium from the ash residue after burning high-carbon stone coal i...

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): C22B3/08C22B34/22
CPCC22B3/08C22B34/22Y02P10/20
Inventor 张瑞华程先忠彭新宇周国庆
Owner HUBEI HAOHUA BIOTECH
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