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首页> 外文期刊>Journal of nuclear science and technology >Uranium Extraction from Sea Water with Composite Adsorbents, (II)Uranium Adsorption on Composite Hydrous Titanium (IV) -Iron (II) Oxide
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Uranium Extraction from Sea Water with Composite Adsorbents, (II)Uranium Adsorption on Composite Hydrous Titanium (IV) -Iron (II) Oxide

机译：复合吸附剂从海水中提取铀（II）含水钛（IV）-铁（II）氧化物吸附铀

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摘要

A composite hydrous oxide, prepared from the mixed solution of titanium tetra-chloride and ferrous chloride by addition of sodium hydroxide solultion, was investigated because of its rather high uranium adsorption capacity and its magnetic property. Re-sults obtained may lead to easier handling of adsorbent species in the extraction of ura-nium from sea water.The uranium adsorption capacity of the composite hydrous oxide was measured using sea water to which a small amount of uranyl chloride was added. The initial uranium concentration was 10. 1 μg/l. Physical and chemical properties, such as specific surface area, mean pore radius and amount of surface OH groups, were also measured. The composite hydrous oxide was found to be composed mainly of relatively small particles of anatase and large particles of magnetite. Uranium adsorption capacity reaches its maximum when the precipitation temperatures are 5070°C. The capacity of the com-posite hydrous oxide was found to be closely related to the mean pore size and the amount of surface OH groups.
机译：研究了由四氯化钛和氯化亚铁的混合溶液通过添加氢氧化钠溶液制备的复合水合氧化物，因为它具有相当高的铀吸附能力和磁性。获得的结果可能会导致从海水中提取铀时更容易处理吸附剂种类。使用添加了少量铀酰氯的海水测量复合水合氧化物的铀吸附能力。初始铀浓度为10. 1μg/ l。还测量了物理和化学性质，例如比表面积，平均孔半径和表面OH基团的量。发现该复合含水氧化物主要由相对较小的锐钛矿颗粒和较大的磁铁矿颗粒组成。当沉淀温度为5070°C时，铀的吸附能力达到最大。发现复合含水氧化物的容量与平均孔径和表面OH基团的量密切相关。

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