摘要
伴随商品磷酸生产而产生的浓密渣酸 ,对其回收利用制重过磷酸钙进行了实验。分析了反应机理 ,认为与常规的重过磷酸钙生产方法不同 ,须考虑继沉淀盐的影响 ,应控制反应体系中的m(P2 O5) /m(CaO) =2 5 3 ,干燥后重过磷酸钙产品中的ω(P2 O5) 有效
It conducts experiment for TSP production with the recovered thick acid sludge which is produced from the phosphoric acid production.After analyzing the reaction mechanism,we think it is not the same with the normal method for producing TSP and the influence of the settled salt shall be considered,and it shall control the m(P 2O 5)/m(CaO) at 2.53 in the reaction system.After drying,the ω(P 2O 5) in the TSP can reach the quality index of the qualified products.
出处
《硫磷设计与粉体工程》
2002年第6期16-18,共3页
Sulphur Phosphorus & Bulk Materials Handling Related Engineering
