拜耳法赤泥沉降分离因素的探讨  

Study on Settling and Separating of Bayer Process Red Mud

作　　者：兰军[1] 吴贤熙[1] 周梅[2] 解元承[1] 马黎[1] 刘彬彬[1] 

机构地区：[1]贵州大学化学工程学院,贵阳550003 [2]成都理工大学材料与化学化工学院,成都610059

出　　处：《有色金属（冶炼部分）》2008年第6期15-17,共3页Nonferrous Metals（Extractive Metallurgy)

基　　金：贵州科学技术基金项目(黔科合J字[2005]2097号)

摘　　要：通过正交试验重点探讨了在添加絮凝剂的情况下,固含、沉降温度、絮凝剂添加量对赤泥沉降分离过程的影响。稀释矿浆温度越高、稀释矿浆固含越低,赤泥沉降速度越快;而赤泥沉降速度先随絮凝剂浓度增加而增加,达到一定浓度后沉降速度又会降低。The influences of the temperature, solid content of diluted slurry and flocculant content on settling and separating of Bayer Process red mud are especially discussed. When diluted slurry temperature becomes higher and the solid content of diluted slurry gets lower, the settling velocity of red mud will become faster. And the settling velocity of red mud with concentration of flocculants increased becomes faster, but when concentration of flocculants reaches certain extent, settling velocity of red mud will reduce.

关 键 词：赤泥 沉降分离 固含 温度 絮凝剂浓度 

分 类 号：TF821[冶金工程—有色金属冶金]