Jump to main content
US EPA
United States Environmental Protection Agency
Search
Search
Main menu
Environmental Topics
Laws & Regulations
About EPA
Health & Environmental Research Online (HERO)
Contact Us
Print
Feedback
Export to File
Search:
This record has one attached file:
Add More Files
Attach File(s):
Display Name for File*:
Save
Citation
Tags
HERO ID
4392294
Reference Type
Journal Article
Title
The Recovery of Vanadium from Ash Obtained during the Combustion of Fuel Oil at Thermal Power Stations
Author(s)
Tsygankova, MV; Bukin, VI; Lysakova, EI; Smirnova, AG; Reznik, AM
Year
2011
Is Peer Reviewed?
1
Journal
Russian Journal of Non-Ferrous Metals
ISSN:
1067-8212
EISSN:
1934-970X
Volume
52
Issue
1
Page Numbers
19-23
DOI
10.3103/S1067821211010251
Web of Science Id
WOS:000290542100005
Abstract
The recovery modes of vanadium from the vanadium-containing ashes of foreign thermal power stations (the Fiomo Santo station (Italy) (sample 1) and stations in Leina, Germany, (sample 2) and Cagliari, Italy (sample 3)) are established. It is shown that there is no single approach to directly recovering vanadium from various ashes. Each ash needs its own leaching mode depending on its chemical and phase compositions, namely, for samples 1 and 2, this is leaching with water and 9% sulfuric acid at S : L = 1 : 4 and t = 60-80 degrees C for 30 min; for sample 3, this is leaching with 5% sulfuric acid in the presence of hydrogen peroxide at S : L = 1 : 4 and t = 20 degrees C for 30 min and then for 60 min at 60 degrees C. The conditions for the hydrolytic precipitation of vanadium from the leaching solutions are selected. It is shown that, in order to isolate it from solutions at the stage of hydrolytic precipitation most completely, it is necessary to change the degree of oxidation of vanadium to +5 using hydrogen pentoxide at t = 20 degrees C for 30 min and then precipitate vanadium peroxide at pH = 1.8-2.0 and t = 95 degrees C for 2 h.
Keywords
vanadium; ash of thermal power stations; leaching; nickel; extraction; hydrolytic precipitation; vanadium pentoxide
Tags
IRIS
•
Vanadium Compounds - Oral
Literature Search: Jan 2010 - Mar 2019
WoS
Combined data set
Excluded by SWIFT Review screen
•
Vanadium Inhalation
Literature Search: Jan 2010 – Mar 2019
WoS
Combined Dataset
Excluded by SWIFT Review screen
Home
Learn about HERO
Using HERO
Search HERO
Projects in HERO
Risk Assessment
Transparency & Integrity