几内亚铝土矿生产氧化铝工艺中降低赤泥沉降水解损失的途径探讨  

Discussion on the way of reducing the hydrolysis loss during red mud settling in the process of producing alumina from Guinea bauxite

作　　者：尹海军 李国庆 Yin Haijun;Li Guoqing(Guangxi Huasheng New Materials Co.,Ltd.,Fangchenggang 538003,China)

机构地区：[1]广西华昇新材料有限公司,广西防城港538003

出　　处：《轻金属》2024年第10期1-6,共6页Light Metals

摘　　要：在使用几内亚铝土矿生产氧化铝工艺中,溶出后矿浆在赤泥沉降过程中水解损失较大,严重影响氧化铝回收率和生产成本。通过对几内亚矿石性质和赤泥沉降工艺条件的摸索研究,找到了影响水解损失的原因及最佳的工艺条件,降低了铝酸钠溶液的水解损失。In the process of producing alumina from Guinea bauxite,the leaching pulp incurs relatively great hydrolysis loss during the red mud settling process,which seriously affects the recovery rate and production cost of alumina.Through the exploration and study on the properties of Guinea ore and the technological conditions of red mud settling,the reasons affecting the hydrolysis loss and the best technological conditions were identified,which reduced the hydrolysis loss of sodium aluminate solution.

关 键 词：几内亚铝土矿 赤泥沉降 水解损失 

分 类 号：TF821[冶金工程—有色金属冶金]