甲叉磷酸系阻垢缓蚀剂阻垢作用的对比研究*7

中国腐蚀与防护学报

1999, Vol. 19

Issue (5): 273-279

研究报告

本期目录 | 过刊浏览

甲叉磷酸系阻垢缓蚀剂阻垢作用的对比研究*7

王睿;沈自求

北京石油大学博士后信箱

COMPARABLE STUDY ON SCALE INGIBITION EFFECT OF METHYLENEPHOSPHONIC ACIDS WITH STRUCTURE OF (HO)2OPCH2{N[CH2PO(OH)2]CH2CH2}nN[CH2PO(OH)2]2

Yu Wang;

北京石油大学博士后信箱

全文: PDF(176 KB)

摘要: 以动静态联合法对甲叉膦酸系阻垢缓蚀剂的阻垢作用进行了对比研究,通过分析计算提出了阻垢作用的动力学机制.由动态法给出的阻垢能力递变规律与静态法实验结果不尽相同,文中对此作了分析.

关键词 ：甲叉膦酸, 阻垢机理, 动静态联合法

Abstract：The scale inhibition effect of four methylenephosphonic acids with structure(HO)2OPCH2{N[CH2PO(OH)2]CH2CH2}n N[CH2PO(OH)2]2 (n=0,1,2,3,4)was compared by dynamic and static test methods.A dynamic mechanism of scale retarding effect was proposed based on analysis and calculation of the experimental data.The experimental results of dynamic method was different from those of static method in two aspects.First, according to dynamic tests the scale inhibition effect of the methylenephosphonic acides was not monotonously enhanced with the increase of their concentration,it may be weakened after a certain dosage.Second,their scale inhibition effect varied in the order:ATMP(m=3)＜EDTMP(m=4)＜TETHMP(m=6)＜DETPMP(m=5) from the dynamic tests rather than ATMP(m=3)＜EDTMP(m=4)＜DETPMP(m=5)＜TETHMP(m=6) from the static tests,here m referred to the number of CH2PO(OH)2group in a methylenephosphonic acid molecule.It was also found that the scale inhibition effect of the inhibitors was mainly due to the retarding of CaCO3 crystal growth rather than the reducing of the amount of calcium ions in solution.

Key words： methylenephosphonic acids scale inhibition mechanism dynamic and static contrast method

收稿日期: 1998-10-20

通讯作者: 王睿

Corresponding author: Yu Wang

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引用本文:

王睿; 沈自求 . 甲叉磷酸系阻垢缓蚀剂阻垢作用的对比研究*7[J]. 中国腐蚀与防护学报, 1999, 19(5): 273-279 .
Yu Wang. COMPARABLE STUDY ON SCALE INGIBITION EFFECT OF METHYLENEPHOSPHONIC ACIDS WITH STRUCTURE OF (HO)2OPCH2{N[CH2PO(OH)2]CH2CH2}nN[CH2PO(OH)2]2. J Chin Soc Corr Pro, 1999, 19(5): 273-279 .

链接本文:

https://www.jcscp.org/CN/ 或 https://www.jcscp.org/CN/Y1999/V19/I5/273

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