Record Display for the EPA National Library CatalogRECORD NUMBER: 5 OF 17
|Main Title||Development of a solid sample analytical procedure for cyanide in spent ore. : Final technical report /|
|Author||Davis, A. D. ; Heriba, A.|
|CORP Author||South Dakota School of Mines and Technology.|
|Publisher||U.S. Environmental Protection Agency, Office of Solid Waste,|
|Report Number||EPA/530/R-92/006; EPA-CX-816270-01-0|
|Additional Subjects||Cyanides ; Leaching ; Metalliferous minerals ; Extraction columns ; Gold ores ; Silver ores ; Chemical analysis ; Technology assessment ; Toxic materials ; Tables(Data) ; Mineral wastes ; Contaminants|
|Collation||239 pages ; 28 cm|
The research was undertaken to develop a solid sample analytical procedure for cyanide in spent ore, in order to predict cyanide levels that could be expected in leachate from spent ore depositories under designated treatment criteria. Three methods were tested for extracting cyanide from spent ore samples in the laboratory under controlled conditions. These methods were: multi-column, in-series leaching, representing a 36-foot thick heap; single-column leaching, recirculating the leachate several times in a 6-ft. column; and bottle-roll samples, in batches using deionized water and 1.25 normal NaOH, for rolling periods of one day, 30 days, 60 days and 90 days.
"EPA/530/R-92/006." "June 7, 1991." Caption title. Microfiche.