Method of Utilization of the Spent Vanadium Catalyst

A spent vanadium catalyst, from the plant of metallurgical type, was leached in a potassium hydroxide solution to recover vanadium. The effect of time, temperature, concentration of basic, catalyst particle size and phase ratio was studied. The results showed that for a 160-750 μm catalyst leached f...

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Bibliographic Details
Published in:Polish journal of chemical technology 2018-09, Vol.20 (3), p.1-7
Main Authors: Mazurek, Krzysztof, Grzesiak, Piotr, Drużyński, Sebastian, Kiełkowska, Urszula, Wróbel, Adriana, Szalla, Aleksandra
Format: Article
Language:English
Subjects:
Amberlite IRA958
arsenic
Catalysis
Catalysts
copper
Dowex® 1X2
Ion exchange
Ion exchangers
Leaching
lead
Metallurgy
Phase ratio
Potash
Potassium
potassium hydroxide
Potassium hydroxides
recovery
spent vanadium catalysts
Vanadium
zinc
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Summary:A spent vanadium catalyst, from the plant of metallurgical type, was leached in a potassium hydroxide solution to recover vanadium. The effect of time, temperature, concentration of basic, catalyst particle size and phase ratio was studied. The results showed that for a 160-750 μm catalyst leached for 4 h at 313.15 K in the presence of 10% potassium hydroxide solution at a liquid: solid ratio of 20:1, the extent of leaching of V was about 87%. Additionally, separation of vanadium from such a solution was investigated by the ion exchange method. Two types of polymer strongly basic ion exchangers were used. The ion exchange tests indicate that vanadium were loaded from the post-leaching solution with high effi ciency. On this basis a fl owsheet for the proposed process of a complex utilization of the spent vanadium catalyst is presented.
ISSN:1899-4741
1509-8117
1899-4741
DOI:10.2478/pjct-2018-0031