Factors Influencing Production Rates in Solution Mining of Uranium Using Basic Lixiviants
| Autor: | T. R. Guilinger, Larry W. Lake, R.S. Schechter, J. G. Price, P. Bobeck |
|---|---|
| Rok vydání: | 1985 |
| Předmět: |
inorganic chemicals
Lixiviant Ammonium carbonate Chemistry Mechanical Engineering Inorganic chemistry technology industry and agriculture Metals and Alloys chemistry.chemical_element General Chemistry engineering.material Uranium Geotechnical Engineering and Engineering Geology complex mixtures Potassium carbonate chemistry.chemical_compound Mining engineering Control and Systems Engineering Molybdenum Materials Chemistry engineering Marcasite Carbonate Molybdenum disulfide |
| Zdroj: | Mining, Metallurgy & Exploration. 2:60-67 |
| ISSN: | 2524-3470 2524-3462 |
| DOI: | 10.1007/bf03402598 |
| Popis: | This paper presents the results of an experimental study on the rate of uranium and molybdenum extraction from a flow reactor. Specific variables tested are fluid throughput and flow rate, lixiviant cation, and injected pH and carbonate concentration. The ore tested was from the Felder mine in southern Texas. It contained substantial quantities of marcasite and molybdenum disulfide that competed with the uranium ore for oxidant. Flow studies showed the oxidation of molybdenum disulfide under field conditions is mass transfer controlled, whereas the uranium oxidation is limited by surface reaction rate. The rate of uranium oxidation decreased with decreasing pH. The total carbonate levels, on the other hand, were unimportant. Ammonium carbonate appears to greatly decrease, if not completely halt, the reaction of marcasite with the oxygen. This effect was not found using either sodium or potassium carbonate. |
| Databáze: | OpenAIRE |
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