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The PRODATA Thermochemical database. A database applied for uranium mining operations

Pascal E. Reiller 1 
1 LANIE - Laboratoire de développement Analytique Nucléaire Isotopique et Elémentaire
SEARS - Service d'études analytiques et de réactivité des surfaces : DEN/DPC
Abstract : This document presents the thermochemical data, i.e. constants and functions, that are included in the database PRODATA, which is developed to answer the needs of ORANO Mining in terms of exploration, exploitation, and remediation of uranium mining facilities. The reactions for complexation, dissolution-precipitation and gas solubility can be exported in three database files that can be used by either software packages PHREEQC, CHESS, and Geochemist’s WorkBench (GWB). The PRODATA database includes data for uranium and radium, and all elements that are necessary to model their comportment in the different contexts for a total of 38 elements. The data selection is based on CODATA and NEA-OECD selections. The coherency and traceability are checked whenever possible. The ionic strength correction is done through either the Davies equation or the specific ion interaction theory (SIT). Application of the database files is proposed for a solution that is containing the 38 elements included in PRODATA. Pourbaix diagrams at varying O2(g) fugacity, and speciations at atmospheric O2(g) and 1 atm H2(g), are proposed to exemplify the performance of the database.
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Submitted on : Monday, August 22, 2022 - 3:14:48 PM
Last modification on : Thursday, August 25, 2022 - 3:28:07 AM


CEA-R 6573.pdf
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  • HAL Id : cea-03757400, version 1


Pascal E. Reiller. The PRODATA Thermochemical database. A database applied for uranium mining operations. [Technical Report] CEA-R-6573, Commissariat à l'énergie atomique et aux énergies alternatives. 2022. ⟨cea-03757400⟩



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