A Novel Process to Recover Gypsum from Phosphogypsum
Gypsum was recovered using a direct flotation method, which included one roughing, one scavenging, and two cleaning operations, from − mm to + mm. The test results show that a gypsum concentrate with a CaSO4·2H2O purity of %, CaSO4·2H2O recovery of %, and whiteness of was achieved.