Research on the scale inhibition capacity of methylene phosphonic acid type of water treatment agent for strontium sulfate

doi:10.11894/1005-829x.2015.35(12).022

INDUSTRIAL WATER TREATMENT ›› 2015, Vol. 35 ›› Issue (12): 22-25. doi: 10.11894/1005-829x.2015.35(12).022

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Research on the scale inhibition capacity of methylene phosphonic acid type of water treatment agent for strontium sulfate

Zhao Xiabing, Yin Xiaoshuang, Yang Wenzhong

College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing 211816, China

Received:2015-11-06 Online:2015-12-20 Published:2015-12-26

亚甲基膦酸型水处理剂对硫酸锶阻垢性能的研究

赵夏冰, 尹晓爽, 杨文忠

南京工业大学化学与分子工程学院, 江苏南京 211816

通讯作者: 杨文忠,教授。E-mail:yangwz@njtech.edu.cn。 E-mail:yangwz@njtech.edu.cn
作者简介:赵夏冰(1989-),硕士。电话:18761682781,E-mail:zhaoxiabing@njtech.edu.cn。
基金资助:
国家科技重大专项课题基金资助项目(2013ZX07210001)

Abstract

Abstract:

Two new kinds of water treatment agents,triethylene tetramine hexamethylene phosphonic acid(TETHMP) and tetraethylenepentamine heptagon methylene phosphonic acid(TEPHMP),have been synthesized from triethy-lene tetramine,tetraethylene pentamine,phosphorous acid,formaldehyde,concentrated hydrochloric acid,etc.,and then characterized by 31P-NMR. The influences of ATMP,EDTMP,DETPMP,TETHMP and TEPHMP on the scale inhibition capacity of strontium sulfate are investigated by static scale inhibition method. Meanwhile,morphology and crystal form of strontium sulfate are characterized by SEM and XRD. The results show that ATMP,EDTMP and DETPMP have poor effect on the scale inhibition capacity of SrSO₄ while TETHMP and TEPHMP have better scale inhibition effect. The scale inhibition rates are up to 98% when the mass concentrations are more than 8 mg/L. With the addition of the five scale inhibitors,the surface morphologies of SrSO₄ are changed and the intensities of XRD diffraction peaks are weakened.

Key words: methylene phosphonic acids, scale inhibitor, strontium sulfate

摘要：

以三乙烯四胺、四乙烯五胺、亚磷酸、甲醛、浓盐酸等为原料合成了新型水处理剂三乙烯四胺六亚甲基膦酸(TETHMP)和四乙烯五胺七亚甲基膦酸(TEPHMP),并用核磁技术对产品进行了表征。采用静态阻垢法考察了ATMP、EDTMP、DETPMP、TETHMP和TEPHMP对SrSO₄阻垢性能的影响,利用扫描电子显微镜(SEM)和X射线衍射技术(XRD)表征SrSO₄的晶体形貌和晶型。结果表明,ATMP、EDTMP和DETPMP对SrSO₄的阻垢性能较差,而TETHMP和TEPHMP的阻垢效果较好,其质量浓度>8 mg/L时阻垢率即达到98%以上。以上5种阻垢剂的加入均使SrSO₄的表面形貌发生变化,使SrSO₄的XRD衍射峰强度减弱。

关键词: 亚甲基膦酸, 阻垢剂, 硫酸锶

CLC Number:

TQ085+.4

Zhao Xiabing, Yin Xiaoshuang, Yang Wenzhong. Research on the scale inhibition capacity of methylene phosphonic acid type of water treatment agent for strontium sulfate[J]. INDUSTRIAL WATER TREATMENT, 2015, 35(12): 22-25.

赵夏冰, 尹晓爽, 杨文忠. 亚甲基膦酸型水处理剂对硫酸锶阻垢性能的研究[J]. 工业水处理, 2015, 35(12): 22-25.

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亚甲基膦酸型水处理剂对硫酸锶阻垢性能的研究

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Research on the scale inhibition capacity of methylene phosphonic acid type of water treatment agent for strontium sulfate

亚甲基膦酸型水处理剂对硫酸锶阻垢性能的研究

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