Record Display for the EPA National Library Catalog


Main Title Alternatives for sodium cyanide for flotation control /
Author Mezey, E. J. ; Neuendorf, D. W. ; Smithson, Jr., G. Ray ; Shea, James F.
Other Authors
Author Title of a Work
Mezey, E. J.
CORP Author Battelle Columbus Labs., OH.;Industrial Environmental Research Lab., Cincinnati, OH.
Publisher U.S. Environmental Protection Agency, Research and Development, Industrial Environmental Research Laboratory : Center for Environmental Research Information [distributor],
Year Published 1981
Report Number EPA/600-S2-81-57; EPA-600-2-81-157; BATT-G-6617-0800; EPA-68-03-2552
Stock Number PB81-247439
OCLC Number 09278315
Subjects Cyanide process ; Flotation
Additional Subjects Water pollution control ; Metal industry ; Cyanides ; Beneficiation ; Substitutes ; Sodium sulfites ; Sodium thiosulfates ; Industrial waste treatment ; Froth flotation ; Sodium sulfide
Internet Access
Description Access URL
Library Call Number Additional Info Location Last
ELBD ARCHIVE EPA 600-2-81-157 Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
ELBD ARCHIVE EPA 600-S2-81-157 In Binder Received from HQ AWBERC Library/Cincinnati,OH 10/04/2023
NTIS  PB81-247439 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 3 pages ; 28 cm
Cyanide has long been looked upon as the classical poison and has been listed by EPA as a priority pollutant. The mineral dressing industry has long used cyanide in its concentration and extractive metallurgy operations. Cyanide plays a role of varying importance in the metallurgy of gold, silver, copper, nickel, cobalt, lead, zinc, molybdenum, and cadmium. In the copper, lead, and zinc industries the primary uses for cyanides are as depressants for the flotation of iron and zinc minerals and for the reactivation of copper minerals in the flotation of molybdenite. This study was made to determine the technical, and if possible, the economic feasibility of substituting alternative reagents for cyanides as depressants for iron in the flotation of copper, lead, and zinc ores. The study was carried out in two phases. The first consisted of a literature search, an evaluation of the data obtained in the search, and finally a suite of laboratory-scale flotation experiments to test the three selected reagents. These experiments were made on copper ores, copper-lead-zinc ores, and zinc ores supplied by industry. The three reagents selected and tested were sodium sulfite, sodium sulfide, and sodium thiosulfate. Phase II consisted of interviewing company officials and operators in the copper-lead-zinc industry. Visits were made to 11 companies operating 17 mills in these fields.
Caption title. At head of title: Project summary. "Oct. 1981." "EPA/600-S2-81-157."