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Laboratory and Pilot Plant Evaluation of Colorado Vitro and Canonsburg Vitro Uranium Concentrate

出版	Office of Technical Services, Department of Commerce, 1959
URL	http://books.google.com.hk/books?id=kGSSeov7ZFEC&hl=&source=gbs_api
EBook	FULL_PUBLIC_DOMAIN

註釋The Vitro Uranium Company, in Canonsburg, Pennsylvania and in Salt Lake City, Utah, started producing uranium concentrate in 1957. The laboratory and pilot plant evaluations of these concentrates are presented in this report. These concentrates meet all FMPC impurity tolerance limits. Laboratory digestion tests have revealed that both concentrates contain excessive quanitites of nitric acid-insoluble uranium at normal digestion conditions. The insoluble uranium content of these concentrates can be reduced by a "hot-concentrated" digestion procedure. A pilot plant pulse column test indicated that these materials can be processed in normal National Lead Company of Ohio refinery feed blends when this "hot-concetrated" digestion procedure is utilized.