摘要
以氧化铝工业排出赤泥为原料,研究高碱赤泥料浆化多级循环脱碱和碱回收联合处理工艺。经3个阶段的反应处理实验,结果表明:当料浆固含量为50%,w(CaO)=5%,陈化温度为70℃,过滤级数为4时,试样含水率低于25%,碱脱除率达79.43%,碱的质量分数为0.87%。
The combined treatment of multi-stage cycle dealkalization and alkali recovery on red mud from alumina industry is studied.After three-stage reaction processing experiment,it is shown that when the solid content of slurry is 50%,w(CaO)=5%,the temperature is 70 ℃ and the filter series is 4,the sample's water content is below 25%,alkali removal rate reaches 79.43% and alkali concentration is 0.87%.
出处
《济南大学学报（自然科学版）》
CAS
北大核心
2013年第4期369-372,共4页
Journal of University of Jinan(Science and Technology)
基金
国家自然科学基金(51172155
51202222)
河南省教育厅科学技术研究重点项目(13A560727)
关键词
赤泥
料浆
多级循环脱碱
碱回收
red mud
slurry
multi-stage cycle dealkalization
alkali recovery
