摘要
以高铁脱硫渣为原料,采用机械化学合成法,即高能球磨法制备出磷酸亚铁锂。分别研究了球磨过程中球料比、转速和高温灼烧过程中灼烧温度、时间对产物的影响。结果表明,适宜的条件为球料比为3、转速为650 r/min下球磨6h后,氮气保护下700℃灼烧4 h,即可制得结晶性能良好、颗粒分布均匀、平均粒径为9.41μm的磷酸亚铁锂。
The lithium iron phosphate was prepared from high-iron desulfurization slag using mechanochemical activation method by high-energy ball milling.The effect of the mass ratio of ball and powder,the rotational speed in the course of ball milling,the calcination temperature and time on the product was investigated.The results showed that the proper conditions for preparation of products were as follows： the mass ratio of ball and powder was 3,the rotational speed of high-energy ball milling was 650 r/min with milling for 6 h,and calcination temperature was 700 ℃ for 4 h under the protection of nitrogen gas.The products with good crystallization performance,equally distributed particle of the average size for 9.41 μm were obtained.
出处
《环境工程学报》
CAS
CSCD
北大核心
2011年第5期1171-1175,共5页
Chinese Journal of Environmental Engineering
基金
湖北省教育厅科学技术研究项目(D20111511)
关键词
高铁脱硫渣
机械化学法
磷酸亚铁锂
high-iron desulfurization slag
mechanochemical activation method by high-energy ball milling
lithium iron phosphate
