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- Material Type
- 規格・テクニカルリポート類
- Author/Editor
- 三田村 久吉長縄 弘親永野 哲志柳瀬 信之半澤 有希子下条 晃司郎松原 達郎美田 豊瀧 富弘村田 雅人
- Publication Date
- 2009-03
- Publication Date (W3CDTF)
- 2009
- Alternative Title
- Extraction and separation of uranium from simulated uranium-containing liquid wastes of Ningyo-toge environmental engineering center
- Periodical title
- JAEA-Research 2008-113
- Target Audience
- 一般
- Note (General)
- 出版タイプ： NA人形峠環境技術センターにおける、製錬転換施設のフッ化物系ウラン汚染物の除染処理に伴うウラン廃液及び使用済み遠心分離機の除染処理に伴うウラン廃液から、ウランを除去・回収する新たな手段として、溶媒抽出法による大量処理装置(エマルションフロー抽出装置)の適用が有望視されている。そこで、この装置を実廃液に適用するに際して最適な抽出剤を選ぶため、それぞれの模擬廃液を使用したバッチ試験を行い、リン酸系の抽出剤に対するウラン及び共存成分の抽出特性を明らかにした。その結果、抽出剤のD2EHPAは、一つの候補に成り得ると考えられるが、AOTのような界面活性剤との組合せを必要とする抽出剤(CMPなど)については、使用の可能性は低いことが明らかとなった。An effective mass processing equipment using solvent extraction method, named "emulsion flow extractor," is the most promising apparatus for removal and recovery of uranium from liquid waste originated from decontamination of uranium-contaminated fluoride waste in the uranium conversion test facility and of used gas centrifuges in the uranium enrichment facility at Ningyo-toge environmental engineering center. Prior to application of the emulsion flow extractor for actual uranium-containing liquid waste, properties of some phosphorous extractants for extraction and separation of uranium and constituents from simulated liquid wastes were examined through batch tests. These preliminary tests revealed that D2EHPA would be a promising candidate for extractant used for treatment of the actual uranium-containing liquid wastes, and that the extractants with a surfactant like AOT would not be useful.
- Source
- /JAEA-Research-2008-113.pdf （fulltext）