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。
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 P_2O_5 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.
出处
《化工科技》
CAS
2004年第1期22-25,共4页
Science & Technology in Chemical Industry
基金
云南省教委科研基金资助项目(9812079)。
