Accession Number : AD0700267

Title :   THE BENEFICIATION OF GOLD ORE BY OIL-PHASE AGGLOMERATION,

Corporate Author : NATIONAL RESEARCH COUNCIL OF CANADA OTTAWA (ONTARIO) DIV OF CHEMISTRY

Personal Author(s) : Farnand,J. R. ; Meadus,F. W. ; Goodhue,E. C. ; Puddington,I. E.

Report Date : 30 JUN 1969

Pagination or Media Count : 5

Abstract : Batch and continuous oil-phase agglomeration techniques have been successfully applied to the beneficiation of a low-grade gold-bearing sulphide ore. Grades of 9-10 oz/ton were obtained at the natural pH of the ore, representing at least a 50-fold improvement. Recoveries of up to 95 per cent were realized, with the gold content in tailings reduced to less than 0.01 oz/ton (0.3 ppm). Although most of the oil could be recovered and re-used, it would probably be more useful as fuel for concentrate roasting operations to permit more efficient leaching in a subsequent cyanide treatment. The results of tailings obtained from continuous agglomeration were slightly inferior to the batch results, owing to the short contact time used. However, recontacting the tailings reduced the gold content to similar values. (Author)

Descriptors :   (*ORES(METAL SOURCES), GOLD), (*GOLD, PURIFICATION), RECOVERY, CONCENTRATION(CHEMISTRY), MINING ENGINEERING, SOLUBILITY, CYANIDES, REACTION KINETICS, COLLECTING METHODS, FEASIBILITY STUDIES, CANADA

Subject Categories : Metallurgy and Metallography
      Fabrication Metallurgy

Distribution Statement : APPROVED FOR PUBLIC RELEASE