Journal of the Korean Magnetics Society (한국자기학회지)

The Korean Magnetics Society (한국자기학회)
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Preparation of Water-based Magnetic Fluids with Spent Iron Oxide Catalyst

산화철 폐촉매로부터 수상 자성유체 제조방법

  • 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)
  • Published : 2005.01.01
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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.

70% 이사의 결정질 마그키타이트를 함유한 산화철 폐촉매를 Attritor에서 미립화하고 계면활성제 종류별로 마그네타이트 미립자를 피복하여 물에 분산하므로 수상 자성유체를 제조하였다. Attritor를 사용하여 볼 : 시료 : 물의 중량비가 최적조건인 2000 : 100 : 100에서 60시간 동안 산화철 폐촉매를 미립화하고, 여기에 계면활성제 oleic acid 20 ml를 넣고 한시간 동안 가열한 후 물에 분산하므로 자화값이 22emu/g인 수상 자성유체를 제조하였다.

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References

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