INTEGRATED PROCESS TO UPGRADE LOW-GRADE CALCAREOUS PHOSPHATE ORE WITH LOW CO2 EMISSIONS AND LOW PHOSPHOGYPSUM WASTE
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United States of America Patent
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Oct 12, 2023
app pub date -
Apr 25, 2022
filing date -
Mar 25, 2022
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Abstract
A new integrated method based on upgrading low-grade calcareous phosphate ore with low CO2 emissions and low phosphogypsum waste production is disclosed. The method is an alternative integrated method that increases P2O5 recovery, reduces costs, minimizes the environmental impact of product phosphogypsum and CO2, and overcomes limitations due to different impurities that have negatively affected the yield of traditional processes to a wide range of natural phosphate sources.
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