反应详情

adding sulfuric acid to the crystallization slurry to react with at least the monocalcium phosphate to form calcium sulfate dihydrate and phosphoric acid, while maintaining the crystallization slurry at a soluble sulfate concentration of from about +0.5% to about +3.0%, the soluble sulfate concentration of the crystallization slurry being greater than the soluble sulfate concentration of the dissolving slurry;