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Ask The Experts—Separating platinum from sands using bubbles

I am trying to find any information about using bubbles to separate platinum from sands and small particles. I think it has to have a surfactant in the process. Do you know of this bubble tech?

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The Bawl Mill   • Legislative And Regulatory Update   • Ask The Experts—Extraction of micro gold from black sands   • Ask The Experts—Difference between a Geiger counter and scintillator   • Then and Now: Is Gold Really Money?   • Gold, Quartz & Chalcedony—Part I   • Prospecting Australia—Part I   • Oregon Dredge Permit Litigation Update   • Gold From Black Sand Tailings   • The Fine Art of Panning Heavy Sands   • California State Gold Panning Championships   • The Golden Days of Julian, California   • An Expensive Lesson   • Judge Denies Request To Delay Michigan Mine   • Melman on Gold & Silver

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