摘要
在热力学计算基础上,通过热重—差热试验的分析,对偏钒酸铵碳热还原制备氮化钒的过程进行了探索,研究了原料配碳比和反应温度对产物物相和成分的影响。结果表明,配碳比为理论碳比时氮化产物氮含量最高,碳含量随着配碳比增加而升高。一步法制备氮化钒的过程是钒氧化物的碳热还原和氮化同时进行的耦合反应。
Based on the thermodynamic calculation,the process of preparing vanadium nitride by carbon thermal reduction was explored by analyzing the thermogravimetric-differential thermal experiment, and the effect of carbon ratio of raw material and reaction temperature on the phase and composition of the products was investigated in this paper. The results show that the nitrogen content of the nitrided product is the highest when the carbon ratio is the stoichimetric. The process of preparing vanadium nitride by one step is the simultaneous coupling reaction of carbon thermal reduction and nitriding of vanadium oxide.
出处
《钢铁钒钛》
CAS
北大核心
2017年第4期6-11,共6页
Iron Steel Vanadium Titanium
基金
陕西省教育厅服务地方专项计划项目:钒氧化物制备氮化钒过程尾气综合利用技术及产业化(16JF014)
关键词
氮化钒
偏钒酸铵
碳热还原
配碳比
反应温度
vanadium nitride, ammonium metavanadate, carbon thermal reduction, carbon ratio, reactiontemperature
