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Laboratory and Pilot Plant Evaluation of Pronto Uranium Concentrate

Clark T. HicksJerome H. KrekelerJoseph R. Nelli

出版	Office of Technical Services, Department of Commerce, 1958
URL	http://books.google.com.hk/books?id=ANTVTOE3ENwC&hl=&source=gbs_api

註釋

The Pronto Uranium Mines, Limited, a subsidiary of the Rio Tinto Company, Limited, started producing a uranium concentrate in August 1955. The laboratory and pilot plant evaluation of Pronto uranium concentrate is presented in this report. This concentrate meets all FMPC impurity tolerance limits except those for thorium and chloride. The thorium limit can be met by the addition of phosphate as required for thorium-containing uranium concentrates. Blending of this material with a high-quality, low-chloride-content uranium concentrate will be necessary to lower the chloride content below the tolerance limit. Digestion and extraction tests indicate that new receipts of Pronto concentrate can be processed in the FMPC refinery using the suggested operating conditions.