摘要
根据CaO.2Al2O3合成热力学计算结果及XRD分析结果,研究了以碳酸钠和氢氧化钠的混合溶液从CaO.2Al2O3中浸出氧化铝。结果表明:CaO.2Al2O3的合成在热力学上可行,合成物以CaO.2Al2O3物相为主;在液固体积质量比5∶1、浸出时间75min、碳酸钠质量浓度100g/L、氢氧化钠质量浓度30g/L、浸出温度90℃条件下,氧化铝浸出率可达91.12%。
Based on thermodynamics calculate and XRD analysis of CaO·2Al2O3, leaching of alumina from the compound with a mixture solution of sodium carbonate and sodium hydroxide was studied. The results showed that the main phase in the synthetic compound was CaO·2Al2O3. The leaching of alumina reached 91.12% under the conditions of temperature of 90℃ ,leaching time of 75 min, ratio of liquid to solid of 5 ： 1, sodium carbonate concentration of 100 g/L,sodium hydroxide concentration of 30 g/L.
出处
《湿法冶金》
CAS
北大核心
2013年第3期165-167,171,共4页
Hydrometallurgy of China
基金
贵阳市科技计划项目(筑科合同[2011101]1-42)
贵州省教育厅自然科学研究项目(黔教科2010015)
关键词
二铝酸钙
氧化铝
热力学
浸出
CaO·2Al2O3
alumina
thermodynamic
leaching
