Every year, the production of industrial phosphoric acid generates more than 100 Tg of phosphogypsum (PG), leading to significant environmental damage and the occupation of a vast amount of land space. The urgent need to explore applications for PG has become increasingly apparent. However, impurities such as organic substances, slime, phosphorite, and SiO2 reduce the whiteness of PG, making it difficult to utilize for high-value applications.
To address this issue, SINORAN research team employed a pilot flotation column process to remove the majority of impurities, including SiO2, organic substances, and fine slime adhered to the surface of PG particles. During the flotation process, special code reagents were introduced to remove most of the impurities. Following this flotation can get the concentrate of PG contains ≥96% dihydrate gypsum, ≤0.1% organics, whiteness≥60%.
PG Sample Batching
Flotation Column Pilot Test to Treat PG
PG Concentrate after Flotation Column Separation
Post time: Jul-03-2024