摘要
综述了五氟化磷的制备方法,大体分为直接法与间接法两类。直接法指由反应物一步生成PF_5的方法,例如PCl_5与AsF_3、PCl_5与无水HF、卤素与PF_3反应一步制取PF_5。间接法指由反应物首先生成中间产物,再对中间产物进行适当处理以得到PF_5的方法,最常见的中间产物是POF_3与HPF_6。纯化操作是两类方法必需的也是关键的步骤。
Methods of preparing phosphorus pentafluoride have been reviewed in this paper. There are mainly two methods:direct method and indirect method. The direct method employs reactant preparing PF5 by one step, for example, preparing PF5 using PCl5 and AsF3, PCl5 and non - aqueous fluoride, halogen and PF3. The indirect method makes intennediate product firstly, then properly disposes intermediate product to get PF5. POF3 and HPF6 are the most common intermediate products. Purifying operation is necessary and critical process of the two methods.
出处
《化工时刊》
CAS
2002年第12期17-20,共4页
Chemical Industry Times
关键词
五氟化磷
制备
研究进展
phosphorus pentafluoride hydrogen fluoride preparation purification
