工业水处理 ›› 2011, Vol. 31 ›› Issue (8): 55-56.doi: 10.11894/1005-829x.2011.(31).8.55

• 试验研究 • 上一篇    下一篇

甘氨酸二亚甲基膦酸合成工艺研究

张光霞, 张巧云, 陈泽民, 刘倩   

  1. 廊坊师范学院化学与材料科学学院, 河北廊坊 065000
  • 收稿日期:2011-04-27 修回日期:2011-04-27 出版日期:2011-08-20 发布日期:2011-08-29
  • 作者简介:张光霞(1969- ),1999 年毕业于甘肃省教育学院化学系,实验师。电话:15076617422,E-mail:zhangqy810@sina.com。
  • 基金资助:

    廊坊师范学院青年基金(LSZQ201009)

Synthesis of glycine dimethyl phosphoric acid

Zhang Guangxia, Zhang Qiaoyun, Chen Zemin, Liu Qian   

  1. College of Chemistry and Materials Science, Langfang Teachers College, Langfang 065000, China
  • Received:2011-04-27 Revised:2011-04-27 Online:2011-08-20 Published:2011-08-29

摘要:

以甘氨酸、甲醛、亚磷酸二乙酯为主要原料,合成甘氨酸二亚甲基膦酸(GDMP)。通过正交实验筛选出最佳合成工艺条件:n(甘氨酸):n(甲醛):n(亚磷酸二乙酯)=1:1.9:2.1,反应温度90~100℃,pH 3.5~4.0,反应时间3.0~3.5 h。所制得的甘氨酸二亚甲基膦酸熔点测定结果与文献值相符合,红外光谱分析结果表明目标产物具有甘氨酸二亚甲基膦酸的各官能团,产品纯度达到进行缓蚀阻垢性能研究的要求。

关键词: 甘氨酸二亚甲基膦酸, 熔点测定, 红外光谱

Abstract:

Glycine dimethyl phosphoric acid (GDMP) has been synthesized with glycine,formaldehyde and diethyl phosphite as main raw materials. Through orthogonal test,the best technical conditions are determined as follows:n(glycine)∶n(formaldehyde)∶n(diethylphosphite)=1∶1.9∶2.1,reaction temperature is 90-100 ℃,pH 3.5-4.0,and reaction time 3.0-3.5 h. The melting point of the product prepared is the same as literature temperature. The result of IR spectral analysis shows that the product has all the functional groups of GDMP. The purity of the product GDMP meets the requirements of the study on scale and corrosion inhibition capacities.

Key words: glycine dimethyl phosphoric acid, melting point measurement, IR spectrum

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