超细五氧化二铌粉体的可控制备及表征  

Controllable Preparation and Characterization of Nb 2O 5 Ultrafine Powder

作　　者：安宇超 崔娜 王泽众 康明生 蔡卫滨[1] An Yuchao;Cui Na;Wang Zezhong;Kang Mingsheng;Cai Weibin(School of Chemical and Environmental Engineering,China University of Mining&Technology,Beijing 100083,China;Hebei Dongtong Optoelectronic Technology Co.,Ltd.,Shijiazhuang 050099,China)

机构地区：[1]中国矿业大学(北京)化学与环境工程学院,北京100083 [2]河北东同光电科技有限公司,河北石家庄050099

出　　处：《山东化工》2023年第15期34-36,共3页Shandong Chemical Industry

基　　金：河北省重点研发计划项目(21311101D);中国矿业大学(北京)大学生创新训练项目。

摘　　要：以铌液和氨水为原料,利用超快速混合微反应器进行反应,制备五氧化二铌粉体。研究了反应终点pH值、铌液浓度和煅烧温度对产物的影响。结果表明,采用超快速微混合反应器,通过反应条件的控制,可以得到分散性较好、粒径可控的五氧化二铌超细粉体,在煅烧温度为800℃时,制得的粉体粒径在82~243 nm,分散性较好。Nb 2O 5 powder was prepared by using ultrafast mixed microreactor,with fluoroniobic acid and ammonia water as raw materials.The effects of reaction end point pH,fluoroniobic acid concentration and calcination temperature on the products were studied.The results show that by controlling the reaction conditions,the ultrafine Nb 2O 5 powder with good dispersion and controllable particle size can be obtained by using the ultra-fast micro-mixing reactor.When the calcination temperature is 800℃,the obtained powder has good dispersion,and the particle size is between 82~243 nm.

关 键 词：五氧化二铌 微反应器 超细粉体 

分 类 号：TQ135.12[化学工程—无机化工]