摘要
对以氯化铝和氨水为原料制备氧化铝的过程进行了考察 ,着重考察中和的温度、pH值、反应物浓度和老化条件对γ -Al2 O3对氧化铝孔结构的影响。在试验范围内 ,氯化铝浓度对氧化铝孔容和比表面积影响不大 ,提高中和温度 ,氧化铝的孔容和比表面积增加高 ,高pH有利于提高孔容和比表面积 ;
The preparation of Al 2O 3 used aluminum chloride and ammonia as raw materials was studied. The influences of precipitation temperature, pH, reactant concentration and aging conditions on pore structure of Al 2O 3 was investigated. The results showed that the effect of concentration of aluminum chloride aqueous solution on pore structure of Al 2O 3 was not obvious; the pore volume and surface area were increased by raising the precipitation temperature; raising pH of precipitation could improve pore volume and surface area, aging conditions had hardly effect on pore structure of Al 2O 3.
出处
《辽宁化工》
CAS
2003年第6期241-243,共3页
Liaoning Chemical Industry
