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Is the Python Right for Me? Python Amenability Test Work Gravity Gold 2010 Tim Hughes, Ken Donaldson, Ben Murphy

Is the Python Right for Me? Python Amenability Test Work Gravity Gold 2010 Tim Hughes, Ken Donaldson, Ben Murphy. Outline. Underground Processing and Python Python Flowsheet Testing for Python VSI Amenability Continuous Gravity Recovery Flotation. Underground Gold Processing.

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Is the Python Right for Me? Python Amenability Test Work Gravity Gold 2010 Tim Hughes, Ken Donaldson, Ben Murphy

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  1. Is the Python Right for Me? Python Amenability Test Work Gravity Gold 2010 Tim Hughes, Ken Donaldson, Ben Murphy

  2. Outline • Underground Processing and Python • Python Flowsheet • Testing for Python • VSI Amenability • Continuous Gravity Recovery • Flotation

  3. Underground Gold Processing Potential Benefits Haulage reduction Less waste handling Smaller surface footprint Lower cut off grade

  4. The Python • Designed for mobility and flexibility • Pre-concentration focus • 5 dry modules, 6 wet modules, 2 electrical

  5. Python Flowsheet

  6. Why Gravity and Flotation?

  7. Python Amenability Testing Mineralogy Bond Impact Crushing Work Index Bond Abrasion Index Vertical Shaft Impactor Amenability Continuous Gravity Recovery Flotation Recovery Concentrate Treatment Concentrate Handling Tailings Testing

  8. Python Throughput

  9. Single Pass VSI Amenability Test

  10. Continuous Gravity Recovery Test P100 ~ 1.18mm Table Test Conc. Tail VSI P100 600µm Conc. Cleaner Table Tail Conc. Table Test Tail

  11. Gravity Yield-Recovery Curve

  12. Flotation Testing Bulk float Typical Reagents: PAX, CuSO4 and frother 4 x 30s concentrates 2 x 5min concentrates – ultimate recovery Yield - Recovery

  13. Flotation of Gravity Tails Gold recovery by gravity only 81% into ~15% mass Combined gravity and float recovery around 96% Au into ~15% mass Flotation recovery-yield data Recovery by Gravity

  14. Combined Gravity and Flotation

  15. Summary Underground pre-concentration has a number of operational benefits and savings. Gekko’s Python utilises fine crushing, gravity separation and flotation to maximise these benefits. Gekko has developed a robust group of laboratory tests to assess an ore’s suitability for Python processing. A large proportion of ores tested have been amenable to the Python flowsheet.

  16. Introduction • QUESTIONS ?

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