Download presentation
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
Designed for mobility and flexibility Pre-concentration focus 5 dry modules, 6 wet modules, 2 electrical The Python
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 Table Test Cleaner Table VSI P100 600 µm P100 ~ 1.18mm Conc. Tail Conc.
11
Gravity Yield-Recovery Curve
12
Flotation Testing Bulk float Typical Reagents: PAX, CuSO 4 and frother 4 x 30s concentrates 2 x 5min concentrates – ultimate recovery Yield - Recovery
13
Flotation of Gravity Tails Recovery by Gravity Gold recovery by gravity only 81% into ~15% mass Combined gravity and float recovery around 96% Au into ~15% mass Flotation recovery-yield data
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 ?
