Development and Morphology Controlling of a Solid Acid for the Fast and Selective Separation of Cesium

2014 Fiscal Year Final Research Report

• Project/Area Number: 24360324
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Reaction engineering/Process system
• Research Institution: Hokkaido University
• Principal Investigator: MUKAI Shin 北海道大学, 工学(系)研究科(研究院), 教授 (70243045)
• Co-Investigator(Kenkyū-buntansha): OGINO Isao 北海道大学, 大学院工学研究院, 准教授 (60625581) ; IWAMURA Shinichiro 北海道大学, 大学院工学研究院, 助教 (10706873)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 化学工学 / 反応・分離工学 / 環境技術 / 環境材料 / セラミックス

Outline of Final Research Achievements

In this work, heteropoly acids which form insoluble salts with Cs+ and Prussian blue analogues which selectively adsorb Cs+ were respectively dispersed and immobilized in silica gels and silica-alumina gels using freezing in order to obtain materials which allow the selective recovery of Cs+ existing in an extremely dilute state. Such materials were also molded into the form of microhoneycombs by controlling the direction of freezing in order to reduce the resistance they cause against fluid flows, and to significantly enhance their response speed towards Cs+ recovery.

Free Research Field

工学