无机盐工业
主管:中海油天津化工研究设计院有限公司
主办:中海油天津化工研究设计院有限公司
   中海油炼油化工科学研究院(北京)有限公司
   中国化工学会无机酸碱盐专业委员会
ISSN 1006-4990 CN 12-1069/TQ

无机盐工业 ›› 2020, Vol. 52 ›› Issue (7): 42-45.doi: 10.11962/1006-4990.2019-0485

• 研究与开发 • 上一篇    下一篇

微波加热合成聚磷酸铵的工艺研究

晏波1,2,解田2,朱铧丞3,4,杨丰明3,4,王凤霞2,谌勇1,2   

  1. 1.贵州大学化学与化工学院,贵州贵阳 550025
    2.中低品位磷矿及其共伴生资源高效利用国家重点实验室
    3.四川大学电子信息工程学院
    4.教育部无线能量传输重点实验室
  • 收稿日期:2020-01-17 出版日期:2020-07-10 发布日期:2020-07-13
  • 作者简介:晏波(1993— ),男,硕士,研究方向为磷化工;E-mail: yanbo993@126.com。
  • 基金资助:
    贵州省科技支撑计划(201821441996620915)

Study on process of synthesizing ammonium polyphosphate by microwave heating

Yan Bo1,2,Xie Tian2,Zhu Huacheng3,4,Yang Fengming3,4,Wang Fengxia2,Chen Yong1,2   

  1. 1.College of Chemistry and Chemical Engineering,Guizhou University,Guiyang 550025,China
    2.State Key Laboratory of High-Efficiency Utilization of Medium and Low Grade Phosphate Rocks and Their Associated Resources
    3.School of Electronics and Information Engineering,Sichuan University
    4.Ministry of Education Key Laboratory of Wireless Energy Transmission
  • Received:2020-01-17 Published:2020-07-10 Online:2020-07-13

摘要:

以磷酸二氢铵和尿素为原料,采用微波加热研究聚磷酸铵的最优聚合工艺条件。分别考察不同原料配比、反应温度和反应时间对聚磷酸铵中五氧化二磷含量、氮含量和聚合度的影响。通过实验得出微波加热聚合聚磷酸铵的最优条件为:磷酸二氢铵与尿素物质的量比为1:1.1、反应温度为170 ℃、反应时间为20 min,样品经XRD检测为Ⅰ-型聚磷酸铵,该条件下得到的产品五氧化二磷质量分数为70.33%、氮质量分数为14.34%、聚合度为50.33,符合化工行业标准HG/T 2770—2008一等品指标要求。

关键词: 微波加热法, 聚磷酸铵, 尿素, 磷酸二氢铵

Abstract:

The optimal polymerization conditions of ammonium polyphosphate were studied by microwave heating using ammonium dihydrogen phosphate and urea as raw materials.The effects of different ratios of raw materials,reaction temperature and reaction time on the contents of phosphorus pentoxide and nitrogen content and polymerization degree in ammonium polyphosphate were studied.The optimum conditions for the microwave heating of ammonium polyphosphate were as follows: the amount-of-substance ratio of ammonium dihydrogen phosphate to urea was 1:1.1,the reaction temperature was 170 ℃ and the reaction time was 20 min.The sample was I-type polyphosphate detected by XRD.Under the optimal conditions,the yield of prepared phosphorus pentoxide was 70.33%,the mass fraction of nitrogen was 14.34% and the polymerization degree was 50.33.This index met the first grade of chemical industry standard HG/T 2770—2008.

Key words: microwave heating, ammonium polyphosphate, urea, ammonium dihydrogen phosphate

中图分类号: