Process for Separating Limonite and Saprolite
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United States of America Patent
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Issued Date -
Nov 10, 2011
app pub date -
May 12, 2011
filing date -
Nov 28, 2008
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Abandoned
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Abstract
A method for separating nickel containing lateritic ore into limonite and saprolite fractions that includes subjecting a lateritic ore slurry to a size separation procedure to separate the limonite and saprolite fractions on a selected threshold particle size basis and determining a threshold particle size based on an analysis of particle size fractions by determining a particle size where substantially all of the particles having a characteristic compositional range of at least one indicator element for limonite are smaller than the determined threshold particle size, and/or substantially all of the particles having a compositional range of at least one indicator element for saprolite are larger than a determined threshold particle size.
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