• 제목/요약/키워드: Paramagnetic

검색결과 360건 처리시간 0.023초

Preparation and Characterization of the Paramagnetic Rhenium Complex, $(CO)_4ReL_2$ [$L_2$= 2,3-Bis(diphenylphosphino)maleic anhydride]

  • Kim Dae-Soo;Chung Young-Baek;Kang Sang-Ook;Ko Jae-Jung
    • Bulletin of the Korean Chemical Society
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    • 제13권3호
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    • pp.235-240
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    • 1992

  • The paramagnetic complex of $(CO)_4ReL_2[L_2=$ 2,3-Bis(diphenylphosphino)maleic anhydride] was prepared both by the photochemically induced homolytic splitting of $Re_2(CO)_10withL_2and$ by the chemical reduction of $[(CO)_4ReL_2]SO_3CF_3.$ The $(CO)_4ReL_2$ compound was characterized by ESR spectrum. The spectrum exhibits three group of sextets arising from one $^{185.187}Re$ nucleus (Ⅰ= 5/2) and two equivalent $^31P$ nuclei (Ⅰ= 1/2). Infrared, ESR, and cyclic voltammetric data are reported for all of the complexes prepared in this study.

  • https://doi.org/10.5012/bkcs.1992.13.3.235 인용 PDF

Development of novel magnetic filter for paramagnetic particles in high gradient magnetic separation

  • Nishijima, Shigehiro;Nomura, Naoki
    • 한국초전도ㆍ저온공학회논문지
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    • 제24권3호
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    • pp.7-11
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    • 2022

  • We are conducting research and development of magnetic filters for magnetic separation targeting paramagnetic materials. In order to develop a new magnetic filter with a large magnetic gradient, stainless fiber (SUS430, 120 mm × 3 mm) with a triangular cross section was sintered with a high void ratio (~ 70%) and the magnetic filter (20 mm × 2 mm) was created. When this magnetic filter was used to perform magnetic separation of hematite (particle size 50 ㎛) under a maximum magnetic flux density of 1.49 T, high separation rates were obtained.

  • https://doi.org/10.9714/psac.2022.24.3.007 인용 PDF KSCI