摘要
A new device was designed,which can effectively avoid the undesired nucleation and agglomeration of fine particles on the experimental results during the sead ed precipitation of sodium aluminate solution,and moreover,the experimental co nditions are nearly kept constant during the experiment. With the new device,it is proven that a good result can be obtained on the kinetics study of the cryst al growth in seeded precipitation of sodium aluminate solution.Experiments were carried out with the concentration of Na2O （Nk）170 g/L,the mole ratio of Na2O to Al2O3 （αk） all between 1.52 to 2.01,at 65,70,75 ℃,respectively. And the kinetics equation of crystal growth of gibbsite was deduc ed.
A new device was designed,which can effectively avoid the undesired nucleation and agglomeration of fine particles on the experimental results during the sead ed precipitation of sodium aluminate solution,and moreover,the experimental co nditions are nearly kept constant during the experiment. With the new device,it is proven that a good result can be obtained on the kinetics study of the cryst al growth in seeded precipitation of sodium aluminate solution.Experiments were carried out with the concentration of Na_2O (N_k)170 g/L,the mole ratio of Na_2O to Al_2O_3 (α_k) all between 1.52 to 2.01,at 65,70,75 ℃,respectively. And the kinetics equation of crystal growth of gibbsite was deduc ed.
出处
《中国有色金属学会会刊：英文版》
CSCD
2004年第4期824-828,共5页
Transactions of Nonferrous Metals Society of China
基金
Project(G19990 64 90 2 )supportedbytheNationalBasicResearchProgramofChina
project(5 98740 3 1)supportedbytheNationalNaturalScienceFoundationofChina
关键词
铝酸钠溶液
晶种分解
晶体生长
氧化铝
动力学
sodium aluminate solution
seeded precipitation
crystal growth
kinetics
