矿产综合利用Issue(4)：41-44,4.
碳酸钠对铝酸钠溶液深度脱硅的影响
Effect of Sodium Carbonate on Deep Desiliconization of Sodium Aluminate Solution
摘要
Abstract
During the course of producing aluminum oxide,as accumulation of sodium carbonate in circulation mother liquor,the flow rate increases and also the solution viscosity,which has influences on crystallization and growth of A1(OH)3. The experiment was performed by using calcium oxide as desiliconization reagents to study the effects of sodium carbonate on the condition and result of deep desiliconization of sodium aluminate solution. Finally, the optimal reaction condition of temperature as 90℃, time as ll0min, stirring speed as 867r/min and dosage of sodium carbonate as 30g/L was determined and the silicon index of refine liquor reached 3642. Meanwhile, Silicon residue of deep desiliconization was analyzed by XRD and found when the sodium carbonate concentration is 0 ~30g/L,it can promote disiliconization but when the concentration is more than 30g/L,it inhibits.关键词
铝酸钠溶液/碳酸钠/深度脱硅Key words
Sodium aluminate solution/ Sodium carbonate/ Deep disiliconization分类
矿业与冶金引用本文复制引用
王雅静,李宏亮,翟玉春,张征..碳酸钠对铝酸钠溶液深度脱硅的影响[J].矿产综合利用,2011,(4):41-44,4.基金项目
国家科技部973项目(G199904690 -4) （G199904690 -4）
辽宁教育厅项目(051339) （051339）
