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Using Rheology to Predict Unstable Flow for Laterite Slurry

UBC Mining Engineering. Overview. What is Unstable Flow"?Problems Predicting Unstable FlowRheometryUnstable Flow Diagrams. UBC Mining Engineering. Unstable Flow of Laterite Slurry. 3 new pressure acid leach nickel plants recently opened in AustraliaUnstable flow problems were encountered at

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Using Rheology to Predict Unstable Flow for Laterite Slurry

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    1. UBC Mining Engineering Using Rheology to Predict Unstable Flow for Laterite Slurry Don Hallbom P.Eng. Ph.D. Candidate Advisor: Dr. Bern Klein

    2. UBC Mining Engineering Overview What is “Unstable Flow”? Problems Predicting Unstable Flow Rheometry Unstable Flow Diagrams

    3. UBC Mining Engineering Unstable Flow of Laterite Slurry 3 new pressure acid leach nickel plants recently opened in Australia Unstable flow problems were encountered at each plant Operating solids content limited by problems at various “choke points”

    4. UBC Mining Engineering What is Unstable Flow? Yield Stress Related Unstable Flow: Rat-holing Plugging Pulsing (build-up and break down) Other Types of Unstable Flow: Turbulence Settling Transients (water hammer)

    5. UBC Mining Engineering What is Unstable Flow?

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