| Title | Rare earths in Philippine phosphogypsum: Use them or lose them |
|---|---|
| ID_Doc | 23669 |
| Authors | Ramirez, JD; Diwa, RR; Palattao, BL; Haneklaus, NH; Tabora, EU; Bautista, AT; Reyes, RY |
| Title | Rare earths in Philippine phosphogypsum: Use them or lose them |
| Year | 2022 |
| Published | |
| Abstract | The Mines and Geosciences Bureau of the Philippines is leaving no stone unturned in its quest to find rare earths to support the country's production sector. In this work we provide an analysis of the economic potential of rare earths found in Philippine phosphogypsum (PG), a powdery byproduct from phosphate fertilizer production. Approximately 10.1 million t PG that contain some 2,678 t rare earth oxides are accessible in the Philippines. PG is partly (up to 40% of the annual production) used in the cement industry and as soil conditioner in the Philippines today in which case accompanying rare earths are indefinitely lost. Recovering the trace amounts of rare earths that occur at mean concentrations of 266 mg kg-1 (0.0266%) in the PG is technically and economically challenging. The Philippines proved to be an innovator in reusing PG and in this discussion, we urge national decision makers to go one step further, accepting the challenge of rare earths recovery from PG and implementing research and policy measures to foster public-private partnerships with the aim of recovering and using, rather than losing REEs in Philippine PG. |
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