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http://dx.doi.org/10.4283/JKMS.2005.15.1.037

Preparation of Water-based Magnetic Fluids with Spent Iron Oxide Catalyst  

Lee, Hyo-Sook (Korea Institute of Geoscience & Mineral Resources)
Shao, Hui-Ping (Department of materials engineering, ChungNam National University)
Kim, Chong-Oh (Department of materials engineering, ChungNam National University)
Publication Information
Journal of the Korean Magnetics Society / v.15, no.1, 2005 , pp. 37-41 More about this Journal
Abstract
We prepared water-based magnetic fluids with the spent iron oxide catalysts which were used in the styrene monomer production process. The catalyst was composed with 70% magnetite and alkali metals. The water-based magnetic fluids were prepared by mechanical grinding with olecic acid as a surfactant and water in an attritor. The magnetization of the water-based magnetic fluids was 22 emu/g in the 10 kOe.
Keywords
water-based magnetic fluids; spent iron oxide catalyst; preparation; mechanical grinding;
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