提高晶种分解率的方案  

PLAN FOR INCREASING SEED PRECIPITATION RATE

作　　者：仇振琢[1] 

机构地区：[1]山东铝业公司研究院,山东淄博255052

出　　处：《轻金属》2000年第9期20-23,共4页Light Metals

摘　　要：熟料低αk 溶出得到的粗液 ,脱硅之前配加种分母液将αk 从 1 3升至 1 5。如此 ,种分母液便在脱硅与分解两工序间往复循环 ,引发脱硅汽耗居高不下。对此 ,本文推荐取碳分Al(OH) 3 作晶种 ,能将种分分解率提高 7 0 %以上 ,借以降低种分母液循环量 ,从而可节约脱硅汽耗费用 15 0万元 /年。Before desilication mother liquor from seed precipitation is added to the liquor of low α k sinter leaching to increase the α k from 1 3 to 1 5.Thus,the mother liquor re-circulates between desilication and precipitation steps and causes high steam consumption of desilication.It is recommended that using Al(OH) 3 from carbonatin decomposition as seed,which can increase seed precipitation rate up to 7 0%,reduce the circulating volume of the mother liquor from seed precipitation and save steam for desilication for RMB 1 5 million per year.

关 键 词：晶种分解率 汽耗 氧化铝 脱硅 烧结法 

分 类 号：TF803.22[冶金工程—有色金属冶金]