蒸发排盐苛化实验研究  

Experimental Study on Causticization of Salt Discharge with Evaporation

作　　者：宋丽莉 SONG Li-li

机构地区：[1]东海氧化铝有限公司,山东龙口265713

出　　处：《有色冶金节能》2019年第1期37-39,共3页Energy Saving of Nonferrous Metallurgy

摘　　要：结合生产实际情况,通过实验室研究,确定了适合生产应用的拜耳法排盐苛化条件。当Na_2CO_3浓度为100～160 g/L、Al_2O_3浓度为20 g/L、CaO:Na_2O=1. 2:1、苛化温度为96℃和苛化时间为1 h时,可以获得较好的苛化效果。Combining with the actual production situation and through laboratory research, the suitable conditions for causticization of salt discharge with evaporation by Bayer process for production application were determined. When Na2CO3 concentration was 100~160 g/L, Al2O3 concentration was 20g/L, CaO∶Na 2O= 1.2 ∶1, causticization temperature was 96℃ and causticization time was 1 h, better causticization effect could be obtained.

关 键 词：蒸发排盐 苛化 碳酸钠 

分 类 号：TQ133.1[化学工程—无机化工] TQ127.13