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Conference Proceedings

Centenary of Flotation Symposium

Conference Proceedings

Centenary of Flotation Symposium

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Technological Solution to Improvement in PGM Recovery, Upgrade Ratio and Cr2O3 Reduction of UG 2 Ore

The paper discusses the improvements achieved after an external sparger flotation column, 1.42 m diameter by 9.5 m high, was installed as a re-recleaner unit at the Northam Platinum Ltd's UG 2 plant in South Africa. The paper also evaluates the pilot plant data prior to the industrial size column installation as well as the accuracy of scale up from pilot to full-scale operation. Since the installation of the PrepQuip flotation column, the final concentrate upgrade ratio improved from 83 to 105, the 3PGM+Au recovery improved from 79.7 per cent to 81 per cent and the Cr2O3 content in the final concentrate decreased from five per cent to 2.8 per cent. The upgrade ratio can be improved to 125 with an overall 3PGM+Au recovery of 80 per cent. Conventional mechanically agitated flotation cells achieved only 74 per cent recovery at an upgrade ratio of 125.
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  • Technological Solution to Improvement in PGM Recovery, Upgrade Ratio and Cr2O3 Reduction of UG 2 Ore
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  • Published: 2004
  • PDF Size: 0.235 Mb.
  • Unique ID: P200505043

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