公开(公告)号：US20050145833A1

公开(公告)日：2005-07-07

申请号：US10504052

申请日：2003-02-11

申请人： Vladimir Brandel ,  Nicolas Dacheux ,  Michel Genet

发明人： Vladimir Brandel ,  Nicolas Dacheux ,  Michel Genet

IPC分类号： C01B25/38 ,  C01B25/45 ,  C02F1/52 ,  C04B35/447 ,  C04B35/624 ,  C09K11/04

CPC分类号： C01B25/45 ,  C01B25/38 ,  C02F1/5236 ,  C02F2101/006 ,  C04B35/447 ,  C04B35/624 ,  C04B2235/32 ,  C04B2235/3224 ,  C04B2235/5409 ,  C04B2235/5436 ,  C04B2235/658 ,  C04B2235/77

摘要： 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.

摘要翻译： 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