Appl. Sci. 2012, 2(1), 166-174; doi:10.3390/app2010166
Article

Reduction and Immobilization of Potassium Permanganate on Iron Oxide Catalyst by Fluidized-Bed Crystallization Technology

Received: 9 February 2012; in revised form: 21 February 2012 / Accepted: 23 February 2012 / Published: 1 March 2012
(This article belongs to the Special Issue Feature Papers)
This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Abstract: A manganese immobilization technology in a fluidized-bed reactor (FBR) was developed by using a waste iron oxide (i.e., BT-3) as catalyst which is a by-product from the fluidized-bed Fenton reaction (FBR-Fenton). It was found that BT-3 could easily reduce potassium permanganate (KMnO4) to MnO2. Furthermore, MnO2 could accumulate on the surface of BT-3 catalyst to form a new Fe-Mn oxide. Laboratory experiments were carried out to investigate the KMnO4-reduction mechanism, including the effect of KMnO4 concentration, BT-3 dosage, and operational solution pH. The results showed that the pH solution was a significant factor in the reduction of KMnO4. At the optimum level, pHf 6, KMnO4 was virtually reduced in 10 min. A pseudo-first order reaction was employed to describe the reduction rate of KMnO4.
Keywords: Fluidized-Bed Reactor (FBR); iron oxide; potassium permanganate
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MDPI and ACS Style

Li, G.-X.; Huaug, Y.-H.; Chen, T.-C.; Shih, Y.-J.; Zhang, H. Reduction and Immobilization of Potassium Permanganate on Iron Oxide Catalyst by Fluidized-Bed Crystallization Technology. Appl. Sci. 2012, 2, 166-174.

AMA Style

Li G-X, Huaug Y-H, Chen T-C, Shih Y-J, Zhang H. Reduction and Immobilization of Potassium Permanganate on Iron Oxide Catalyst by Fluidized-Bed Crystallization Technology. Applied Sciences. 2012; 2(1):166-174.

Chicago/Turabian Style

Li, Guang-Xia; Huaug, Yao-Hui; Chen, Teng-Chien; Shih, Yu-Jen; Zhang, Hui. 2012. "Reduction and Immobilization of Potassium Permanganate on Iron Oxide Catalyst by Fluidized-Bed Crystallization Technology." Appl. Sci. 2, no. 1: 166-174.

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