针状羟基氧化铁的成核与生长过程  

NUCLEATION AND GROWTH PROCESS OF THE NEEDLE-LIKE GOETHITE CRYSTALS

作　　者：王亭杰[1] 金涌[1] 汪展文[1] 俞芷青[1] 

机构地区：[1]清华大学化工系,北京100084

出　　处：《化工学报》1998年第2期201-207,共7页CIESC Journal

摘　　要：研究了在碱法制备过程中针状羟基氧化铁晶体颗粒的生长过程．在试验基础上，对反应过程中晶体颗粒的成核与生长过程进行了研究，考察了初期氧化速率对最终晶体产物指标的影响，并研究了不同熟化工艺对晶体产物的改善作用．Based on experiments,the nucleation and growth process of crystal grains in the reaction process was investigated.The influence of oxidation rate during the earlier period in the reaction process on the parameters of the final crystal grains was surveyed.The improvement of the final product by aging techniques was also reported.

关 键 词：羟基氧化铁 晶体成核 晶体生长 磁粉 针状 

分 类 号：TQ586.1[化学工程—精细化工]