Cyanide analysis for complex cyanide solutions

CIM Journal, Vol. 4, No. 2, 2013
W. van der Merwe Measurement and Control Division, MINTEK Randburg, South Africa P. Breuer Parker CRC for Integrated Hydrometallurgy Solutions, CSIRO Minerals Down Under National Research Flagship, CSIRO Process Science and Engineering, Australia
Abstract



With the gold industry processing more complex ores, the online
measurement and control of cyanide addition to the gold leaching circuit has
become more critical.  This paper
compares the two commonly employed ‘free’ cyanide online analysis methods
(amperometric and potentiometric endpoint silver nitrate titration) with the
rhodanine endpoint silver nitrate titration and ion selective electrode methods
common at site laboratories.  Measurement differences between these
methods are presented and discussed for cyanide solutions containing copper and
zinc with varying cyanide to metal ion ratios.  The resulting cyanide available to leach
gold is also compared using these measurement techniques.
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Publication: CIM Journal
Issue: 2
Volume: 4
Year: 2013
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Summary: The correlations between froth recovery of coal and air recovery were investigated using
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Publication: CIM Journal
Author(s): H. Wang and M. Cao
Issue: 2
Volume: 4
Year: 2013
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Author(s): S. P. Upadhyay, Z. Lin, S. Sundararajan, and J. Szymanski
University of Alberta, Markin/CNRL Natural Resources Engineering Facility, Edmonton, AB

R. S. Suglo
University of Mines and Technology, Tarkwa, Ghana
Issue: 2
Volume: 4
Year: 2013
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Summary: Northern
Saskatchewan boasts some of the world's largest known high-grade uranium
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Publication: CIM Journal
Author(s): R. Bashir
Golder Associates, Saskatoon, Saskatchewan and Department of Civil & Geological Engineering, University of Saskatchewan, Saskatoon, SK

J. F. Hatley
Cameco Corporation, Saskatoon, SK
Issue: 2
Volume: 4
Year: 2013
Text
Summary: Temperature, solute, texture and thixotropic effects on time
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Publication: CIM Journal
Author(s): A. R. Sorta, D. C. Sego, and G. W. Wilson
University of Alberta, Department of Civil & Environmental Engineering, Markin/CNRL Natural Resources Engineering Facility, Edmonton, AB
Issue: 2
Volume: 4
Year: 2013
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Summary: A
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Author(s): J. G. Manchuk
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O. Babak
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C. V. Deutsch
Centre for Computational Geostatistics, University of Alberta, Edmonton, AB
Issue: 2
Volume: 4
Year: 2013
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Summary: Before
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Author(s): T. G. Joseph
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N. Shi
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Issue: 2
Volume: 4
Year: 2013
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