Recovery of Silver from Floatation Tailings using Thiosulphate

Boland, Kelly (2002). Recovery of Silver from Floatation Tailings using Thiosulphate Honours Thesis, School of Engineering, The University of Queensland.

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Author Boland, Kelly
Thesis Title Recovery of Silver from Floatation Tailings using Thiosulphate
School, Centre or Institute School of Engineering
Institution The University of Queensland
Publication date 2002
Thesis type Honours Thesis
Supervisor Nursen Guresin
Ben Cronin
Total pages 68
Language eng
Subjects 091405 Mining Engineering
Formatted abstract
BHPBilliton owns and operates the Cannington lead-silver-zinc mine and concentrator located in north-west Queensland, Australia. The concentrator uses sequential flotation to selectively float a lead-silver concentrate and a zinc concentrate. Current flotation practice at Cannington allows for valuable amounts of silver to report to the flotation tailings and remain unrecovered. It is desirable to recover the silver from the tailings using an economically viable process, as it would provide a substantial economic benefit to Cannington. It was suggested that thiosulphate could be a viable method for recovering silver from the tailings.

A literature review regarding thiosulphate leaching was conducted. The following parameters were identified for experimental investigation:

• Thiosulphate concentration
• Copper Sulphate concentration
• Ammonia concentration
• Liquid to Solid Ratio (L:S)
• Temperature
• Time

From the literature review, the following hypothesis was developed.

“The ability to recover silver from flotation tailings using thiosulphate will provide significant financial benefit to the BHPBilliton Cannington operation.”

With respect to this hypothesis, several sub-topics are implied, being:

• “To identify the thiosulphate leaching conditions that result in the highest silver dissolution possible” and
• “To determine the economic cost of the optimum thiosulphate leaching system.”
Keyword Silver recovery

Document type: Thesis
Collection: UQ Theses (non-RHD) - UQ staff and students only
Citation counts: Google Scholar Search Google Scholar
Created: Fri, 28 Nov 2014, 10:07:31 EST by Asma Asrar Qureshi on behalf of Scholarly Communication and Digitisation Service