Characterization and evaluation of phosphogypsum samples
2ND INTERNATIONAL CONFERENCE ON CONTEMPORARY ACADEMIC RESEARCH ICCAR 2023, Konya, Türkiye, 2 - 04 Kasım 2023, ss.79, (Özet Bildiri)
- Yayın Türü: Bildiri / Özet Bildiri
- Basıldığı Şehir: Konya
- Basıldığı Ülke: Türkiye
- Sayfa Sayıları: ss.79
- Süleyman Demirel Üniversitesi Adresli: Evet
Özet
Huge amounts of wastes, residues and by-products are generated from
phosphate mining and phosphoric acid production, including flotation tailings, waste
clay, phosphogypsum (PG), and phosphoric acid sludge. In this study, the
characterization and evaluation of phosphogypsum was conducted on a raw PG
sample from an operation in central Florida, USA without any pre-treatment. The
characterization results showed that the PG sample contains 230.64 ppm total
rare earth elements (REEs) with 13.23 ppm U and 0.63 ppm Th. The REE content in
this PG sample is lower than that in most other PGs worldwide. PG was selected as
an REE resource due to its high volume generation, about 20 million tons per
year from Florida alone. Recovery of REEs from PG must take into account of the
environmental and economic issues.