Removal of vanadium, potassium and iron from spent vanadium catalyst by leaching with citric acid at atmospheric pressure

• Autorzy: Krzysztof Mazurek
• Języki publikacji: EN

Abstrakty

EN

The effect of time, temperature, the catalyst particle size and the ratio of the catalyst weight to the leaching solution volume (S:L) on the treatment of spent vanadium catalyst components was determined using citric acid solutions at atmospheric pressure. The optimal parameters of catalyst leaching in 10% acid solutions at atmospheric pressure are: T = 323 K, t = 4 h, the particle size of less than 0.160 mm, the S:L ratio below 0.1. Under these conditions it was possible to dissolve about 90% of vanadium and potassium compounds and more than 60% of iron compounds contained in the catalyst. These results fall within the scope of research on a comprehensive method for recovering spent vanadium catalyst components.

Słowa kluczowe

EN

citric acid; sulphur oxide; spent vanadium catalysts; leaching; recovery

• Czasopismo: Polish Journal of Chemical Technology
• Rocznik: 2014
• Tom: 16
• Numer: 1
• Strony: 59-62

Daty

wydano

2014-03-01

online

2014-03-25

Twórcy

autor

Krzysztof Mazurek

• Nicolaus Copernicus University, Faculty of Chemistry, Department of Chemical Technology, ul. Gagarina 7, 87-100 Toruń, Poland,

Bibliografia

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Identyfikatory

DOI

10.2478/pjct-2014-0010