拜耳法氧化铝赤泥中稀土金属赋存状态研究  

A study on occurrence mode of rare earth metals in red mud from Bayer process

作　　者：王克勤[1] 李生虎[1] 

机构地区：[1]太原理工大学材料科学与工程学院,山西太原030024

出　　处：《轻金属》2012年第10期13-16,共4页Light Metals

基　　金：山西省留学基金(2009-39)

摘　　要：通过实验研究了拜耳法氧化铝赤泥中稀土金属赋存状态,拜耳法氧化铝赤泥由钙钛矿、方钠石、钙霞石、斜硅钙石、水化石榴石、羟基钛酸钙等矿物组成。赤泥中的稀土元素绝大部分呈分散态分布在赤泥的各个矿物中。钙钛矿、钛水化石榴石、钙水化石榴石、羟基钛酸钙中的含量相对其他矿物要多一些。呈离子吸附型赋存的稀土矿物的含量为5.26%。The occurrence mode of rare earth metals in red mud from Bayer process was studied by the experiment,it was concluded that the red mud from Bayer process were consisted of perovskite, socialite, cancrinite, larnite, calcium hydrate garnet, titanium hydrate garnet and etc, most of rare earth elements in a dispersion state distributed in various minerals, the contents of perovskite, titanium hydration garnet, calcium hydration garnet and hydroxyl calcium ti- tanate in red mud were higher than other minerals and contents of minerals which rare earth elements existed in ion adsorption were 5.26%.

关 键 词：拜耳法氧化铝赤泥 XRD EDS 

分 类 号：TQ133.1[化学工程—无机化工]