Preparation of amidoxime fibers for recovery of uranium from seawater.
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概要
- 論文の詳細を見る
Commercial acrylonitrile fibers of 1.2, 1.5, 3, 8 and 15 denier were separately treated in a 0.38 mol/<I>l</I> NH<SUB>2</SUB>OH methanolic solution at 80°C and then in a 0.1 mol/<I>l</I> NaOH aqueous solution at 30°C. The treatments were carried out by changing reaction periods to find the optimum conditions. The intrinsic adsorption rate of uranium from seawater with the amidoxime fibers was inversely proportional to fiber diameter, and the capacity was in the range of 120–350 mg per kg of dry fiber per day. The effective diffusivity of uranium in 1.5-denier amidoxime fiber immersed in seawater was 5 × 10<SUP>–8</SUP> cm<SUP>2</SUP>/s. The strength of the fibers was not reduced by the NH<SUB>2</SUB>OH and NaOH treatment.
- The Society of Chemical Engineers, Japanの論文
著者
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Kago Tokihiro
Department Of Chemical Science And Technology Kyushu University
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Egawa Hiroaki
Department Of Applied Chemistry Faculty Of Engineering Kumamoto University
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Kusakabe Katsuki
Department Of Applied Chemistry Graduate School Of Engineering Kyushu University
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Morooka Shigeharu
Department Of Applied Chemistry Kyushu University
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MOROOKA Shigeharu
Department of Applied Chemistry, Kyushu University
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Kato Takafumi
Department of Applied Chemistry, Kyushu University
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