Recovery and Removal of Uranium by Immobilized Kakishibu Tannin

固定化柿涩单宁回收去除铀

• 批准号: 01880027
• 负责人: SAKAGUCHI Takashi
• 金额: $ 8万
• 依托单位: Miyazaki Medical College
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Developmental Scientific Research
• 财政年份: 1989
• 资助国家: 日本
• 起止时间: 1989 至 1991
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-01880027/
• 关键词: Immobilized kakishibu; Tannin; Uranium Recovery; Uranium wastewater; Thorium; ウラン回収; ウランの回収除去; タンニン系吸着剤

Some attempts were made to recover and remove of uranium that may be present in refinning effluents by using immobilized kakishibu tannin. Tannin compounds having multiple adjacent hydroxy groups have an extremely high affinity for uranium and thorium.Kakishibu is the exptracted juice of uuripe astringent persimmon fruit, and it contains large quantities of tannin compounds. Kakishibu is easily immobilized with various aldehyde solutions. The immobilized kakishibu presents an extremely high affinity to uranium and thorium. One gram of the immobilized kakishibu absorbed 1.7g of uranium.Removal tests for uranium existing-in uranium refining wastewater were carried out at the Ningyo-toge Station of the Power Reactor and Nuclear Fuel Development Corporation. The immobilized kakishibu can recover and remove uranium from uranium refining wastewater with high efficiency. The uranium retained on the adsorbent can be quantitatively and easily eluted with a very dilute hydrochloric acid. The adsorbent can be used repeatedly in the adsorption-desorption cycle.

尝试了一些尝试通过使用固定的kakishibu tannin来恢复和去除铀的铀。具有多个相邻羟基基团的单宁化合物对铀和ther。Kakishibu是Uuripe Attringent Persimmon果实的果汁，它含有大量的单宁化合物。 Kakishibu很容易用各种醛解决方案固定。固定的Kakishibu对铀和th有极高的亲和力。一克固定的kakishibu吸收了1.7克铀。铀现有的铀炼油厂的拆除试验是在电力反应堆和核燃料开发公司的Ningyo Toge站进行的。固定的Kakishibu可以以高效率从铀炼油厂中恢复并清除铀。保留在吸附剂上的铀可以用非常稀释的盐酸进行定量和轻松洗脱。吸附剂可以在吸附 - 吸附周期中反复使用。

项目成果

坂口 孝司,河本 薫明,中島 暉: "タンニン系吸着剤を利用する廃水からの微量ウランの回収除去" 日本原子力学会. (1991)

Takashi Sakaguchi、Kaoruaki Kawamoto、Akira Nakajima：“使用单宁吸附剂从废水中回收和去除痕量铀”日本原子能协会（1991 年）。

T.SAKAGUCHI A.NAKAJIMA: "Recovery of Uranium by Biological Substances" Proceedings 2nd International Conference on Separations Science and Technology. 1. 331-336

T.SAKAGUCHI A.NAKAJIMA：“生物物质回收铀”第二届国际分离科学与技术会议论文集。

T.SAKAGUCHI,A.NAKAJIMA: "Recovery and Removal of Uranium by Using Microorganisms and Biological Substances" Proceedings of the International Symyrosium on Environmental Controls in Metallurgical Industries and Scrap Metal Recycling. 67-77 (1991)

T.SAKAGUCHI,A.NAKAJIMA：“利用微生物和生物物质回收和去除铀”国际冶金工业环境控制和废金属回收研讨会论文集。

T. SAKAGUCHI, A. NAKAJIMA: "Recovery and Removal of Uranium by using Microorganisms and Biological Substances" Proceedings of the International Symposium on Environmental Controls in Metallurgical Industries and Scrap Metal Recycling. 67-77 (1991)

T. SAKAGUCHI、A. NAKAJIMA：“利用微生物和生物物质回收和去除铀”冶金工业环境控制和废金属回收国际研讨会论文集。

坂口 孝司,河本 薫明,中島 暉: "タンニン系吸着剤を利用する廃水からの微量ウランの回収" 日本化学会. (1992)

Takashi Sakaguchi、Kaoruaki Kawamoto、Akira Nakajima：“使用单宁基吸附剂从废水中回收微量铀”日本化学会（1992 年）。