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Heap Leaching Studies on Uranium Ore, Phase IV.

PB272716

Publication Date	1977
Personal Author	Merritt, R. C.; Peterson, H. D.; Wentz, C. N.
Page Count	276
Abstract	This report describes laboratory as well as pilot heap leaching investigations of low-grade sandstone ores from Wyoming, New Mexico, and Colorado. Sodium carbonate-bicarbonate solutions containing sodium hypochlorite extracted up to 86, 54, and 16 percent U3O8 from Wyoming, New Mexico, and Colorado ores, respectively. Ammonium carbonate-bicarbonate solutions containing sodium hypochlorite were less effective at leaching these ores. Acid leach in replicate pilot plant testing resulted in U3O8 extractions of 96, 88, and 81 percent from the Wyoming, New Mexico, and Colorado ores. The development of cost-effective processes for extracting uranium from low-grade ore is essential to the assurance of a continuing domestic supply of uranium.
Keywords	Uranium ores Leaching Extraction Sandstones Sodium carbonates Sodium hypochlorite Hydrometallurgy Pilot plants Vanadium Percolation Oxidation Wyoming New Mexico Colorado
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	Colorado School of Mines Research Inst., Golden.; BUREAU OF Mines, Washington, D.C.
Supplemental Notes	See also report dated 6 Jul 76, PB-261 127.
Document Type	Technical Report
Title Note	Open file rept.
NTIS Issue Number	197726
Contract Number	H0252022

Heap Leaching Studies on Uranium Ore, Phase IV.

Heap Leaching Studies on Uranium Ore, Phase IV.
PB272716

Publication Date	1977
Personal Author	Merritt, R. C.; Peterson, H. D.; Wentz, C. N.
Page Count	276
Abstract	This report describes laboratory as well as pilot heap leaching investigations of low-grade sandstone ores from Wyoming, New Mexico, and Colorado. Sodium carbonate-bicarbonate solutions containing sodium hypochlorite extracted up to 86, 54, and 16 percent U3O8 from Wyoming, New Mexico, and Colorado ores, respectively. Ammonium carbonate-bicarbonate solutions containing sodium hypochlorite were less effective at leaching these ores. Acid leach in replicate pilot plant testing resulted in U3O8 extractions of 96, 88, and 81 percent from the Wyoming, New Mexico, and Colorado ores. The development of cost-effective processes for extracting uranium from low-grade ore is essential to the assurance of a continuing domestic supply of uranium.
Keywords	Uranium ores Leaching Extraction Sandstones Sodium carbonates Sodium hypochlorite Hydrometallurgy Pilot plants Vanadium Percolation Oxidation Wyoming New Mexico Colorado
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries
Corporate Authors	Colorado School of Mines Research Inst., Golden.; BUREAU OF Mines, Washington, D.C.
Supplemental Notes	See also report dated 6 Jul 76, PB-261 127.
Document Type	Technical Report
Title Note	Open file rept.
NTIS Issue Number	197726
Contract Number	H0252022