研究者情報 | 神奈川大学

ホリ　ヒサオ Hori Hisao 堀　久男所属神奈川大学理学部理学科神奈川大学大学院理学研究科理学専攻（化学領域）職種教授
発表年月日	2018/11/21
発表テーマ	Efficient photochemnical recovery of rhenium from aqueous solutions: A greener approach for rhenium metallurgical processing
発表学会名	The 7th Asia-Oceania Conference on Green and Sustainable Chemistry (AOC7-GSC)
主催者	Institute of Chemical and Engineering Sciences, Institute of Materials Research and Engineering
学会区分	国際学会
発表形式	口頭（一般）
単独共同区分	単独
開催地名	Singapore
発表者・共同発表者	Hisao Hori, Takafumi Otsu
概要	Rhenium, a minor metal in the Earth's crust, is used in superalloys for turbine blades for aircraft and thermal power plants and in petroleum reforming catalysts. Rhenium exists as ReO4- in aqueous solutions, and the recovery of ReO4- from aqueous solutions is difficult because of its low concentration and high solubility at all pH values. We report herein that irradiation of aqueous ReO4- with UV-visible light in the presence of 2-propanol and acetone leads to formation of a precipitate consisting of amorphous ReO2 and ReO3, and that 95% of initial rhenium is recovered within 6 h of irradiation.