Process for the recovery of phosphate from phosphate rock
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United States of America Patent
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May 13, 2003
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N/A
app pub date -
Nov 15, 2000
filing date -
Nov 15, 2000
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Abstract
There is disclosed a wet process for the recovery of phosphate from phosphate rock which comprises leaching finely divided particles of phosphate rock with a protic acid at a temperature and for a time that favours dissolution, into a leachate, of the phosphate in relation to an impurity, and, isolating the leachate. An appropriate combination of particle size, leach time and leach temperature can achieve high phosphate recovery while reducing the amount of impurities.
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