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Radium Removal from Uranium Ores and Mill Tailings.

PB250751

Publication Date	1976
Personal Author	Borrowman, S. R.; Brooks, P. T.
Page Count	16
Abstract	Mill tailings from conventional uranium extraction processes contain nearly all of the radium originally in the ore. Such tailings require controlled storage in perpetuity to safeguard the surrounding environment from radioactive contamination. Alternatives to controlled storage of the tailings are either removal of the radium from the tailings for separate storage or use, or separate removal of the radium when processing the uranium ore. The latter alternative would best apply to future mills. To prevent scattering of radioactive particles by wind and water erosion, tailings piles have been treated either by covering with earth or by spraying with crust-forming chemicals. In laboratory tests, radium was leached from tailings using either hydrochloric acid or ethylene diamine tetra acetic acid. A hydrochloric acid leaching method was used for extracting both radium and uranium from the ore to yield tailings containing less radium than tailings produced by either conventional sulfuric acid or alkaline leaching processes.
Keywords	Radioactive waste processing Uranium ores Radium Solid waste disposal Mining Tailings Extractive metallurgy Hydrometallurgy Leaching Hydrochloric acid EDTA Air pollution abatement Water pollution abatement Separation Meetings Mine wastes
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 68F - Radiation Pollution & Control 77G - Radioactive Wastes & Radioactivity
Corporate Authors	Bureau of Mines, Salt Lake City, Utah. Salt Lake City Metallurgy Research Center.
Supplemental Notes	Presented at the Annual AIME Meeting, Chicago, Ill., Feb. 26-Mar. 1, 1973.
Document Type	Technical Report
Title Note	Rept. of investigations 1975.
NTIS Issue Number	197611

Radium Removal from Uranium Ores and Mill Tailings.

Radium Removal from Uranium Ores and Mill Tailings.
PB250751

Publication Date	1976
Personal Author	Borrowman, S. R.; Brooks, P. T.
Page Count	16
Abstract	Mill tailings from conventional uranium extraction processes contain nearly all of the radium originally in the ore. Such tailings require controlled storage in perpetuity to safeguard the surrounding environment from radioactive contamination. Alternatives to controlled storage of the tailings are either removal of the radium from the tailings for separate storage or use, or separate removal of the radium when processing the uranium ore. The latter alternative would best apply to future mills. To prevent scattering of radioactive particles by wind and water erosion, tailings piles have been treated either by covering with earth or by spraying with crust-forming chemicals. In laboratory tests, radium was leached from tailings using either hydrochloric acid or ethylene diamine tetra acetic acid. A hydrochloric acid leaching method was used for extracting both radium and uranium from the ore to yield tailings containing less radium than tailings produced by either conventional sulfuric acid or alkaline leaching processes.
Keywords	Radioactive waste processing Uranium ores Radium Solid waste disposal Mining Tailings Extractive metallurgy Hydrometallurgy Leaching Hydrochloric acid EDTA Air pollution abatement Water pollution abatement Separation Meetings Mine wastes
Source Agency	Bureau of Mines
NTIS Subject Category	48A - Mineral Industries 68F - Radiation Pollution & Control 77G - Radioactive Wastes & Radioactivity
Corporate Authors	Bureau of Mines, Salt Lake City, Utah. Salt Lake City Metallurgy Research Center.
Supplemental Notes	Presented at the Annual AIME Meeting, Chicago, Ill., Feb. 26-Mar. 1, 1973.
Document Type	Technical Report
Title Note	Rept. of investigations 1975.
NTIS Issue Number	197611