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Rare-earth leaching from Florida phosphate rock in wet-process phosphoric acid production

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Description: Phosphorite, or phosphate rock, is the most significant secondary rare-earth resource. It contains high amounts of phosphate-bearing minerals along with low contents of rare earth elements (REEs). In Florida, about 19 Mt of phosphate rock are mined annually and most are used to manufacture fertilizers using a wet process, in which sulfuric acid reacts with phosphates to produce phosphoric acid and phosphogypsum. In the wet process, REEs are also leached out into solution and eventually get lost in the leaching residue and phosphate fertilizer. Recovering REEs from Florida phosphate rock in the wet process will be beneficial to broadening rare-earth availability, improving the quality of phosphoric acid product and protecting the environment.
Published Date: August 17, 2017
Author(s)s: Liang, H. Zhang, P. Jin, Z. DePaoli, D.
Format: PDF
Download Size: 1,393 KB
# Pages: 8

  • List Price: $50.00 USD

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Rare-earth leaching from Florida phosphate rock in wet-process phosphoric acid production
Back to Rare-earth leaching from Florida phosphate rock in wet-process phosphoric acid production

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