铜川上店高岭土提取氧化铝的研究  

Research of extraction of alumina from Tongchuan Shangdian kaolin

作　　者：王尉和[1] 赵鹏[1] 裴新意[1] 

机构地区：[1]长安大学材料科学与工程学院,陕西西安710054

出　　处：《应用化工》2008年第9期1102-1103,共2页Applied Chemical Industry

基　　金：国家自然科学基金资助项目(50472028)

摘　　要：以陕西铜川上店高岭土原矿为原料,在900℃煅烧6 h,磨成200目的粉体。与生石灰按1∶1.5的比例混合均匀,加水混合成泥浆状,装入高压釜中,在180℃蒸养12 h。自然冷却后,在900℃煅烧6 h,冷却研磨至200目,用8%Na2CO3溶液溶解浸出,溶液通CO2,生成Al(OH)3,抽滤、干燥、煅烧,得氧化铝,提取率60.0%。Sintered the Shangdian kaolin at 900℃, and grinded the powder to 200 mesh, mixed with quicklime at the ratio of 1 ： 1.5. Droped appropriate water into the powder and mixed until them becoming slurry,and then put into the high pressure kettle,steam curing at 180 ℃ for 12 h. Sintered at 900 ℃ for 6 h, after cooling, grinded the material to 200 mesh, dissolved into Na2CO3 solution with the concentration of 8%. After carbonizing,sieving, drying and sintering get the alumina with 60% extraction rate.

关 键 词：高岭土 氧化铝 提取 

分 类 号：TD985[矿业工程—选矿]