电子级磷酸的制备与研究进展  

Progress in preparation and research of electronic grade phosphoric acid

作　　者：欧阳贻德[1] 唐正姣[1] 王存文[1] 王为国[1] 陈文利[1] 

机构地区：[1]武汉工程大学化工与制药学院绿色化工过程省部共建教育部重点实验室,湖北武汉430073

出　　处：《现代化工》2009年第3期22-26,共5页Modern Chemical Industry

摘　　要：介绍了电子级磷酸的缘由、质量标准和检测方法。综述了电子级磷酸的研究开发现状和制备方法,包括五氧化二磷水合法、三氯氧磷和磷酸三酯水解法、高纯磷氧化法以及热法磷酸或湿法净化磷酸结晶法,重点阐述氧化法和各种结晶法如冷却结晶法、浸渍结晶法和熔融结晶法等制备电子级磷酸的过程及其特点。展望了电子级磷酸的发展前景,同时对我国电子级磷酸的研究与开发提出了一些建议。The reasons for producing electronic grade phnsphoric acid and its quality specifications and test methods are introduced in this paper. The present research and development situation and preparation methods, including hydration of phosphorus pentoxide, hydrolysis of phosphorus oxychloride or trialkyl phosphate, oxidation of high-purity phosphorus and crystallization of phosphoric acid produced by the thermal process or purified by the wet process, are reviewed. The processes and features of electronic grade phosphoric acid produced by the oxidation and crystallization processes such as cooling crystallization, dipping crystallization, melting crystallization and so on are stood out. The development prospects are predicted, some suggestions for research and development of electronic grade phosphoric acid in China are also put forward.

关 键 词：电子级磷酸 高纯磷酸 制备 结晶法 

分 类 号：TQ126.35[化学工程—无机化工] TQ421.4