Review of Brazilian Activities Related to the Thorium Fuel Cycle and Production of Thorium Compounds at IPEN-CNEN/SP
Review of Brazilian Activities Related to the Thorium Fuel Cycle and Production of Thorium Compounds at IPEN-CNEN/SP作者机构：Centro de Quimica e Meio Ambiente IPEN-CNEN/SP (Instituto de Pesquisas Energetieas e Nucleares) $6o Paulo 2242 05508-000Brazil
出 版 物：《Journal of Energy and Power Engineering》 (能源与动力工程（美国大卫英文）)
年 卷 期：2014年第8卷第12期
页 面：1983-1990页
学科分类：082703[工学-核技术及应用] 07[理学] 08[工学] 070104[理学-应用数学] 0827[工学-核科学与技术] 0701[理学-数学]
主 题：Thorium compounds purification processes.
摘 要：The Brazilian＇s interest in the nuclear utilization of thorium has started in the 1950s as a consequence of the abundant occurrence ofmonazite sands. Since the 1960s, IPEN-CNEN/SP （lnstituto de Pesquisas Energ6ticas e Nucleares） has performed some developments related to the thorium fuel cycle. The production and purification of thorium compounds was carried out at IPEN for about 18 years and the main product was the thorium nitrate with high purity, having been produced over 170 metric tons of this material in the period, obtained through solvent extraction. The thorium nitrate was supplied to the domestic industry and used for gas portable lamps （Welsbach mantle）. Although the thorium compounds produced have not been employed in the nuclear area, several studies were conducted. Therefore, those activities and the accumulated experience are of strategic importance, on one hand, due to huge Brazilian thorium reserves, on the other hand, by the resurgence of the interest of thorium for the Generation IV advanced reactors. This paper presents a review of the Brazilian research and development activities related to thorium technology.
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