The Teck Cominco Hydrozinc
            <sup>™</sup>
            Process

Lizama, Hector M.; Harlamovs, Juris R.; Bélanger, Suzanne; Brienne, Stéphane H. R.

doi:10.1002/9781118804407.ch32

Cited by 5 publications

(1 citation statement)

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“…Heap leach and bioleach technology for the extraction of Cu from oxidised ores and secondary copper sulfides have been applied most widely in Chile [164]. Heap or dump leaching of copper ores ( Figure 3) has spread worldwide [165] and the technology has been adapted and applied to other commodities, for example gold [166], nickel [167], uranium [168] and zinc [169].…”

Section: Technology Developmentsmentioning

confidence: 99%

Review of Biohydrometallurgical Metals Extraction from Polymetallic Mineral Resources

Watling

2014

Minerals

128

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This review has as its underlying premise the need to become proficient in delivering a suite of element or metal products from polymetallic ores to avoid the predicted exhaustion of key metals in demand in technological societies. Many technologies, proven or still to be developed, will assist in meeting the demands of the next generation for trace and rare metals, potentially including the broader application of biohydrometallurgy for the extraction of multiple metals from low-grade and complex ores. Developed biotechnologies that could be applied are briefly reviewed and some of the difficulties to be overcome highlighted. Examples of the bioleaching of polymetallic mineral resources using different combinations of those technologies are described for polymetallic sulfide concentrates, low-grade sulfide and oxidised ores. Three areas for further research are: (i) the development of sophisticated continuous vat bioreactors with additional controls; (ii) in situ and in stope bioleaching and the need to solve problems associated with microbial activity in that scenario; and (iii) the exploitation of sulfur-oxidising microorganisms that, under specific anaerobic leaching conditions, reduce and solubilise refractory iron(III) or manganese(IV) compounds containing multiple elements. Finally, with the successful applications of stirred tank bioleaching to a polymetallic tailings dump and heap bioleaching to a polymetallic black schist ore, there is no reason why those proven technologies should not be more widely applied.

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Section: Technology Developmentsmentioning

confidence: 99%

Review of Biohydrometallurgical Metals Extraction from Polymetallic Mineral Resources

Watling

2014

Minerals

128

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Aqueous Processing of Metals

Aromaa¹

2007

Encyclopedia of Electrochemistry

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Cyanide is used in the leaching phase of hydrometallurgical recovery of gold. The toxicity and environmental risks have created a need for safer alternatives. There is a vast amount of information about gold extraction and a selection has been collected and formalized to be used in a decision support tool. The tool Auric Advisor uses case-based reasoning (CBR) to provide process alternatives for the user queries. The aim of this paper is to study leaching of gold with cyanide replacing alternatives such as ammonium thiosulfate, chloride-hypochlorite, thiourea and thiocyanate to provide new cases for the tool. The behaviour of gold was examined with electrochemical tests and weight loss measurements a using quartz crystal microbalance (QCM) were used to determine the dissolution rate. Based on literature, the dissolution rate determined for cyanide solution was 2.5 mgcm -2 h -1 . Based on polarisation experiments and potential measurements, the ammonium thiosulfate system with cupric ion as oxidant was estimated to dissolve gold slower than cyanide. In the QCM tests the chloride-hypochlorite alternative showed highest dissolution rate of 8.6 mgcm -2 h -1 at the redox potential of 900 mV vs. SHE. The thiocyanate system with ferric ion dissolved gold at a rate of 3.4 mgcm -2 h -1 at the redox potential of 620 mV vs. SHE. Thiourea system with ferric ion showed the dissolution rate of 1.65 mg cm -2 h -1 at the redox potential of 450 mV vs. SHE. The results of the rapid tests were comparable with literature and were included in the case base of the Auric Advisor decision-support tool.

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Purification of Zinc from the Bioleaching Solution of a Bulk Lead–Zinc Concentrate by Precipitation and Solvent Extraction

Ahmadi

Hosseini

Ahmadi

et al. 2021

J. Sustain. Metall.

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The Teck Cominco Hydrozinc ^™ Process

Cited by 5 publications

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Review of Biohydrometallurgical Metals Extraction from Polymetallic Mineral Resources

Review of Biohydrometallurgical Metals Extraction from Polymetallic Mineral Resources

Aqueous Processing of Metals

Purification of Zinc from the Bioleaching Solution of a Bulk Lead–Zinc Concentrate by Precipitation and Solvent Extraction

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The Teck Cominco Hydrozinc ™ Process

Cited by 5 publications

References 0 publications

Review of Biohydrometallurgical Metals Extraction from Polymetallic Mineral Resources

Review of Biohydrometallurgical Metals Extraction from Polymetallic Mineral Resources

Aqueous Processing of Metals

Purification of Zinc from the Bioleaching Solution of a Bulk Lead–Zinc Concentrate by Precipitation and Solvent Extraction

Contact Info

Product

Resources

About

The Teck Cominco Hydrozinc ^™ Process