摘要
采用简易化共沉淀氧化法,以盐酸酸洗碳钢废液为原料制备Fe3O4磁粉。通过反应过程中pH的变化监测反应溶液中的n(Fe^3+)∶n(Fe^2+),为氧化共沉淀法提供了简易化操作。比较了制备的小粒径(18~20nm)Fe3O4与Alfa试剂级50~100 nm粒径的Fe3O4在香豆素衍生物和喹喔啉衍生物合成中的催化效果。结果表明,自制Fe3O4的催化效果较好、产率较高,且明显缩短了反应时间。采用振动样品磁强计、X射线衍射仪、TEM对制备的Fe3O4样品进行了表征;化合物的结构均经核磁共振波谱(NMR)和高分辨质谱(HRMS)确证。
The Fe3O4 magnetic powder was prepared with simple co-precipitation oxidation method using steel pickling waste liquor as raw material.The mole ratio of Fe^3+∶Fe^2+in the reaction solution was monitored by the change of pH during the reaction process,which provided a simple operation for the co-precipitation oxidation method.The catalytic effect of Fe3O4 with small particle size of 18~20 nm and Alfa reagent grade of 50~100 nm on the synthesis of coumarin derivatives and quinoxaline derivatives was compared.The self-made Fe3O4 has a good catalytic reaction effect,high yield,and significantly shortens the reaction time.The prepared Fe3O4 samples were characterized by VSM,XRD and TEM.The structures of the compounds were confirmed by nuclear magnetic resonance spectroscopy(NMR)and high resolution mass spectrometry(HRMS).
作者
李贾东
谢志强
卢俊瑞
LI Jia-dong;XIE Zhi-qiang;LU Jun-rui(School of Chemistry and Chemical Engineering,Tianjin University of Technology,Tianjin 300384,China;Tianjin Ruiling Chemical Co.,Ltd,Tianjin 300384,China)
出处
《精细化工》
EI
CAS
CSCD
北大核心
2019年第7期1422-1427,共6页
Fine Chemicals
基金
国家自然科学基金(21476174,21176194)
关键词
氧化共沉淀法
FE3O4
磁粉
酸洗废液
香豆素衍生物
喹喔啉衍生物
水处理技术与环境保护
oxidation co-precipation
Fe3O4
magnetic powder
spent liquors
coumarin derivatives
quinoxaline derivatives
water treatment technology and environmental protection
