UO2(O2)⋅4H2O(s)+2H+↔UO22++4H2O+H2O2 Therefore, the dissolution kinetics of studtite in various natural environmental conditions is an important factor in modelling radionuclides transport and to assess the risk of burying SNF in deep geologic repositories. Dissolution of studtite in ground...
【题目】硼铁混合精矿含有硼镁石[MgBO2(OH)、磁铁矿(Fe3O4)、磁黄铁矿(FexS)、品质铀矿(UO2)等,以该矿为原料制备MgSO4·H2O和硼酸(
27.(14分)硼铁混合精矿含有硼镁石[MgBO2(OH)]、磁铁矿 (Fe_3O_4) 、黄铁矿(FexS)、晶质铀矿(UO2)等,以该矿为原料制备MgSO4·H2O和硼酸(H3BO3)的工艺流程如下:已知:UO22*在pH为4～5的溶液中生成UO2(OH)2沉淀MgCl2H2SO4、NaClO3滤液冷却结晶过滤H3BO3滤液除铁蒸发趁热硼铁净化浓缩过滤酸浸MgSO4H2O...
Chemical formula: 3PbO.6UO3.2P2O5.13H2O. The structure consists of [H(UO2)3O2(PO4)2]n3n- layers, parallel to (100), connected by Pb2+ ions bonded to 8 oxygens which form distorted bi-capped trigonal prisms. The structure type is dumontite. -Authors被引量: 4 ...
Raman spectroscopic study of the uranyl phosphate mineral dumontite Pb2[(UO2)3O2(PO4)2]. 5H2O主要由Copyright John Wiley、Ray L. Frost、Jiří Čejka编写,在2014年被Journal of Raman Spectroscopy收录,
(OH)+H2SO4=MgSO4+H3BO3,NaClO3可将UO2转化为UO22+,反应的离子反应方程式为3UO22++6H++ClO3-=UO22++3H2O+Cl-,故答案为:MgBO2(OH)+H2SO4=MgSO4+H3BO3;3UO22++6H++ClO3-=UO22++3H2O+Cl-;(2)除铁净化时,应调节pH,为避免引入新杂质,可加入MgO或Mg(OH)2等,生成沉淀为Fe(OH)3、UO2...
The crystal structure of a novel natural uranyl sulfate, Ca(UO2)6(SO4)2O2(OH)6·12H2O (CaUS), has been determined using data collected under ambient conditions at the Swiss–Norwegian beamline BM01 of the European Synchrotron Research Facility (ESRF). Th
[题目]硼铁混合精矿含有硼镁石[MgBO2.磁黄铁矿等.以该矿为原料制备MgSO4·H2O和硼酸的工艺流程如下:已知:在pH为4-5的溶液中生成UO2(OH)2沉淀.回答下列问题:(l)“酸浸 时.为了提高浸出率可采取的措施有: .该步骤中NaC1O3可将UO2转化为.则该反应的离子方程式为 .(2)“除
硼铁混合精矿含有硼镁石[MgBO2(OH)、磁铁矿(Fe3O4)、磁黄铁矿(FexS)、品质铀矿(UO2)等,以该矿为原料制备MgSO4.H2O和硼酸(H3BO3)的工艺
[题目]硼铁混合精矿含有硼镁石[MgBO2 .磁黄铁矿等.以该矿为原料制备MgSO4H2O和硼酸的工艺流程如下:已知:UO22+在pH为4~5的溶液中生成UO2(OH)2沉淀.回答下列问题:(1)“酸浸 时.为了提高浸出率可采取的措施有: .该步骤中NaClO3可将UO2转化为UO22+.则该反应的离子方