MgSO_4-H_3BO_3-UO_2^(2+)-H_2SO_4体系中含铀晶体化合物的制备及结构研究

Preparation of Crystal Uranium Compound in MgSO 4 H 3BO 3 UO 2 2+ H 2SO 4 Solution and Its Structure

着重讨论在ＭｇＳＯ４Ｈ３ＢＯ３ＵＯ２２＋Ｈ２ＳＯ４体系中，制备含铀的晶体化合物。通过红外光谱、差热分析及Ｘ射线衍射等手段确定其结构为（ＵＯ２）３（ＳＯ４）２（ＯＨ）２·８Ｈ２Ｏ。并且在结晶过程中，Ｍｇ２＋的浓度及ｐＨ对其结构无影响。该结构的确定，对于研究在此体系下铀的存在形式。

The crystal uranium compound set is prepared from the MgSO 4 H 3BO 3 UO 2 2+ H 2SO 4 solution. Its structure is ascertained to be (UO 2) 3(SO 4) 2(OH) 2·8H 2O with XRD,IR and DTA. In the course of crystallizing, it is not affected by the concentration of Mg 2+ and the value of pH. The definition of its structure is essential to study the form of its existence in this solution and to choose the proper method of separating uranium in production.