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    • 1. 发明申请
    • Method of preparing a product based on phosphate of thorium and/or actinide(s)
    • 制备基于钍和/或锕系磷酸盐的产品的方法
    • US20050145833A1
    • 2005-07-07
    • US10504052
    • 2003-02-11
    • Vladimir BrandelNicolas DacheuxMichel Genet
    • Vladimir BrandelNicolas DacheuxMichel Genet
    • C01B25/38C01B25/45C02F1/52C04B35/447C04B35/624C09K11/04
    • C01B25/45C01B25/38C02F1/5236C02F2101/006C04B35/447C04B35/624C04B2235/32C04B2235/3224C04B2235/5409C04B2235/5436C04B2235/658C04B2235/77
    • The invention relates to a process for the preparation of a product based on a phosphate of at least one element M(IV), for example of thorium and/or of actinide(IV)(s). This process comprises the following stages: a) mixing a solution of thorium(IV) and/or of at least one actinide(IV) with a phosphoric acid solution in amounts such that the molar ratio PO 4 M ⁢   ⁢ ( IV ) is from 1.4 to 2, b) heating the mixture of the solutions in a closed container at a temperature of 50 to 250° C. in order to precipitate a product comprising a phosphate of at least one element M chosen from thorium(IV) and actinide(IV)s having a P/M molar ratio of 1.5, and c) separating the precipitated product from the solution. The precipitate can be converted to phosphate/diphosphate of thorium and of actinide(s). The process also applies to the separation of uranyl ions from other cations.
    • 本发明涉及一种制备基于至少一种元素M(Ⅳ),例如钍和/或锕系元素(Ⅳ)的磷酸盐的产物的方法。 该方法包括以下步骤:a)将钍(IV)和/或至少一种锕系元素(IV)的溶液与磷酸溶液混合,其量使得摩尔比 PO MI> IV 为1.4至2,b)将溶液的混合物在温度 为了沉淀含有选自钍(IV)和P / M摩尔比为1.5的锕系元素(IV)的至少一种元素M的磷酸盐的产物,以及c)将沉淀的 产品从解决方案。 沉淀物可以转化为钍和锕系元素的磷酸盐/二磷酸盐。 该方法也适用于从其他阳离子分离铀酰离子。