Process Technology for Phosphoric Acid Production in Saudi ...
Jan 01, 1992· Dissolution of phosphate rock in hydrochloric acid is rapid. The concentration of P 2 O 5 and CaCl 2 in the leach liquor are a function of the rock grade, the HCl concentration, and the water balance in the system . Phosphoric acid is separated from the leach liquor by solvent extraction. The solvents used are C 4 and C 5 alcohols.