Process for the valorization of phosphate sludge for the production of rare earths, calcium carbonate and silicates

FR3163954A1Pending Publication Date: 2026-01-02UNIV MOHAMMED VI POLYTECHNIQUE +1
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Patent Information

Application Number
FR2024007067
Authority / Receiving Office
FR · FR
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-06-28
Publication Date
2026-01-02
Patent Text Reader

Abstract

The present invention relates to a process for extracting rare earth elements (REEs) from phosphate sludge. In addition to rare earth elements, the process allows for the recovery and valorization of silica and calcium carbonate contained in the phosphate sludge. Figure 3 (for the abstract)
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Citation Information

Patent Citations

  • Process method for extracting phosphorus and rare earth from rare earth-containing low-grade phosphorite

    CN114703385A

  • Low-cost selective precipitation circuit for recovery of rare earth elements from acid leachate of coal waste

    US20190136344A1

  • Method for recovering rare earths and calcium sulfate from phosphogypsum

    WO2024072201A1