Recovery of vanadium from spent catalysts of sulfuric acid plant by using inorganic and organic acids: Laboratory and semi-pilot tests

CATEGORY: VANADIUM
Recovery of vanadium from spent catalysts of sulfuric acid plant by using inorganic and organic acids: Laboratory and semi-pilot tests

Type	Journal Article
Author	Ceren Erust
Author	Ata Akcil
URL	http://www.sciencedirect.com/science/article/pii/S0956053X15302361
Volume	49
Pages	455-461
Publication	Waste Management
Date	March 2016
Abstract	Catalysts are used extensively in industry to purify and upgrade various feeds and to improve process efficiency. Such catalysts lose their activity with time. Researchers used spent catalysts from a sulfuric acid plant as a secondary source for vanadium recovery. They performed experimental studies using three different leaching systems. The effects of leaching time, temperature, concentration of reagents and solid/liquid (S/L) ratio were examined. Under optimum conditions, 95% V was recovered in the presence of hydrogen peroxide in citric acid leaching.