Abstract
The leaching behavior of rhenium in ammonium iodide solutions with iodine as oxidant was studied. Experiments were carried out in an autoclave to investigate the effects of stirring speed, temperature, solution pH, and iodine and iodide concentrations on the dissolution of rhenium. It was found that a high temperature and a high solution pH were essential for the efficient leaching of rhenium. The dissolution rate was found to be dependent upon the concentration of iodine and iodide. It was concluded that the dissolution of rhenium under the conditions studied was controlled by the mass transfer of iodine with an apparent activation energy of 15.8 kJ/mole.
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Preprint 97-096, presented at the SME Annual Meeting, Feb. 24–27, 1997, Denver, CO.
Discussion of this peer-reviewed and approved paper is invited and must be submitted to SME prior to May 31, 1998.
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Hong, D., Meng, X. & Han, K.N. Leaching behavior of rhenium in ammonium iodide/iodine solutions. Mining, Metallurgy & Exploration 15, 8–13 (1998). https://doi.org/10.1007/BF03402780
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DOI: https://doi.org/10.1007/BF03402780