水浸重过磷酸钙制饲料级磷酸氢钙脱氟工艺的研究  

Defluorination Technology for Preparation of Feed-grade Dicalcium Phosphate from Triple Superphosphate

作　　者：马兴良 廖昆生 伏红玉 

机构地区：[1]云南昆阳磷肥厂,云南晋宁650604

出　　处：《云南化工》2004年第1期10-12,27,共4页Yunnan Chemical Technology

摘　　要：　介绍了在重过磷酸钙水浸提取磷过程中,采用混合脱氟剂一步脱氟工艺的试验研究;在最佳工艺条件下,水浸脱氟液经氢氧化钙中和及过滤、烘干得到了合格的饲料级磷酸氢钙产品。该工艺充分利用了重过磷酸钙中的水溶钙成分,显著降低了原料消耗及制备费用。One-step defluorination technology in the preparation of feed-grade dicalcium Phosphate from triple superphosphate was introduced. Under the optimal process, the feed-grade dicalcium phosphate could be produced by neutralization of the leach liquor with calcium hydroxide solution, filtration and then dryness. The process fully utilized water-soluble calcium ion and decreased consumption of material and preparation.

关 键 词：饲料级磷酸氢钙 脱氟工艺 重过磷酸钙 水浸 

分 类 号：TQ132.32[化学工程—无机化工]