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http://dx.doi.org/10.7844/kirr.2013.22.1.55

Adsorption/Desorption Characteristics of Vanadium from Ammonium Metavanadate using Anion Exchange Resin  

Jeon, Jong Hyuk (Department of Chemical Engineering, Kwangwoon University)
Kim, Young Hun (Department of Chemical Engineering, Kwangwoon University)
Hwang, In Sung (Department of Chemical Engineering, Kwangwoon University)
Lee, Jin Young (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources)
Kim, Joon Soo (Mineral Resources Research Division, Korea Institute of Geoscience and Mineral Resources)
Han, Choon (Department of Chemical Engineering, Kwangwoon University)
Publication Information
Resources Recycling / v.22, no.1, 2013 , pp. 55-63 More about this Journal
Abstract
Considering considerable contents of vanadium and tungsten in spent SCR DeNOx catalysts, separation and recovery of those metals are required. In this respect, commercial anion exchange resin (MP600) was employed to recover vanadium from the synthetic solution of ammonium metavanadate. Experimental results indicated that vanadium exist as anion under the acidic condition (pH 2 ~ 6) and adsorbed on the resin. Although the adsorption rate was increased with temperature, the maximum amount of adsorption was not affected by temperature. Desorption took place under either strong acidic (less than pH 1) or strong caustic (higher than pH 13) condition. However, desorption seldom took place under moderate conditions (pH 3~11). Furthermore, adsorption equilibrium results agreed well with Freundlich isotherm and pseudo-second-order reactions. And, adsorption energy was evaluated using Dubinin-Radushkevich and Temkin isotherm.
Keywords
Ion exchange resin; Ammonium metavanadate; SCR $DeNO_x$ catalyst; Vanadium; Adsorption;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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