磷资源加工研究进展:2.从高镁低品位磷矿中回收镁化学品  

Research progress of phosphate resource processing: 2.Recovery of magnesium from lower grade phosphate rock with high magnesium content

作　　者：刘代俊[1] 陈伟[1] 徐程浩[1] 余静[1] 杨军[1] 江成发[1] 

机构地区：[1]四川大学化工学院四川省磷化学与工程重点实验室,四川成都610065

出　　处：《磷肥与复肥》2008年第6期18-20,24,共4页Phosphate & Compound Fertilizer

摘　　要：介绍对高镁低品位磷矿采用选择性化学反应进行脱镁并回收镁的新方法,磷损失约2%,获得的阻燃剂氢氧化镁产品w(Mg(OH)2)可达95%以上。该工艺既解决了磷矿脱镁的问题,又具有较好的经济价值。The new method is introduced for recovery of magnesium from lowgrade phosphate rock with high magnesium content by adopting selective chemical reaction. In the process, the loss of phosphorus is about 2% while the w（Mg（OH）2）of the recovered product as flame retardant is over 95%. This technology not only solves the problem of separation magnesium from phosphate rock, but also brings the economic benefit.

关 键 词：高镁低品住磷矿 化学脱镁 氢氧化镁 

分 类 号：TQ126.3[化学工程—无机化工]