【摘要】 采用氢氧化钙作为沉淀剂,研究了搅拌速度、沉淀剂用量、反应时间、反应温度等因素对湿法磷酸中砷的脱除率及P2O5收率的影响,并通过正交实验,得出了适宜的工艺条件。在适宜的工艺条件下可得到较纯净的湿法磷酸。更多还原

【Abstract】 In this paper,using calcium hydroxide as precipitator,the influence of stirring rate,amount of calcium hydroxide,reaction time and reaction temperature on the recovery ratio of P₂O₅ and removal of arsenic have been studied.By orthogonal experiment,fit technics condition has been obtained.In this condition,purer wet-process phosphoric acid has been gained.更多还原