山西氧化铝赤泥的物化性质  

Physicochemical properties of red mud in Shanxi

作　　者：王克勤[1] 李爱秀[1] 邓海霞[1] 朱国海[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4期25-28,共4页Light Metals

摘　　要：通过实验研究了山西氧化铝赤泥的物理化学性质,包括拜耳法赤泥,烧结法赤泥的化学组成、密度、粒度分布、表面性质、胶结凝聚性能、物相组成。进行了DTA及TG、DTG分析。本研究表明山西氧化铝赤泥中含有钪、钛、铌、稀土、钒等有价金属。安息角:32.5°～47.2°;平均粒径为8.61μm～11.46μm;有效密度为:2.9～3.1;比表面积:89.2m2/g～96.8m2/g;由钙钛矿、方钠石、高岭石等多种矿物组成。By means of experiment, the physieochemical properties of red mud in Shanxi were studied, including the chemical composition, density, size distribution, surface property, cohesion property, phase composition of red mud from Bayer process and Sintering process, analyzing of I）TA, TG and DTG were also done. The results showed red mud in Shanxi contained many valuable metals, such as titanium, niobium, rare earth and vanadium. The rest angle of the red mud was 32.5° - 47.2°, the average particle size was 8.61 μm - 11.46μm, effective density was 2.9 g/cm^3 - 3.1 g/cm^3 and the specific surface area was 89.2m^2/g - 96.8 m^2/g. It consisted of many kinds of mineral, such as perovskitc, sodallte, kaolinite and so on

关 键 词：拜耳法赤泥 烧结法赤泥 

分 类 号：TF821[冶金工程—有色金属冶金]