The effect of synthesized hydrolyzed polymaleic anhydride (HPMA) on the crystal of calcium carbonate

被引：87

作者：

Shen, Zhanhui ^{[1
]}

Li, Jiansheng ^{[2
]}

Xu, Ke ^{[1
]}

Ding, Lili ^{[1
]}

Ren, Hongqiang ^{[1
]}

机构：

[1] Nanjing Univ, State Key Lab Pollut Control & Resource Reuse, Sch Environm, Nanjing 210093, Jiangsu, Peoples R China

[2] Nanjing Univ Sci & Technol, Sch Environm & Biol Engn, Nanjing 210094, Jiangsu, Peoples R China

来源：

DESALINATION | 2012年 / 284卷

基金：

中国国家自然科学基金; 国家高技术研究发展计划(863计划);

关键词：

HPMA; Calcium carbonate; Crystal; Antiscalant; Synergetic effect; COOLING WATER-SYSTEMS; LOW-MOLECULAR-WEIGHT; SCALE DEPOSITION; MINERAL SCALE; INHIBITION; SURFACE; ACID; CRYSTALLIZATION; POLYETHYLENE; COPOLYMERS;

D O I：

10.1016/j.desal.2011.09.005

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Precipitation of calcium carbonate followed by the adhesion of precipitates to equipment surfaces is the main problem of mineral scaling in cooling water systems. Many chemicals and antiscalants have been widely used to mitigate the mineral scaling problems. Hydrolyzed polymaleic anhydride (HPMA) was synthesized and used as antiscalant. The effect of Synthesized HPMA on the crystal of calcium carbonate was investigated through the calcium carbonate precipitation experiments. The synergetic effect of synthesized HPMA with 1-hydroxyethane-1,1-diphosphonic acid (HEDP) and polyacrylic acid (PAA) was also investigated. It was indicated that the order of the ability to prevent the precipitation of Ca2+ from bulk solution was HEDP/HPMA/PAA>HEDP approximate to HPMA>PAA. The morphologies and the crystal structure of the precipitates were investigated using Scanning Electron Microscope (SEM) and X-ray Diffractometer (XRD). It was indicated that HPMA could change the morphologies and crystal structures of CaCO3 precipitates. The irregular framboid spherical shape and vaterite crystal was observed in the presence of HPMA. HEDP and PAA could enhance the effect of synthesized HPMA on the crystal of calcium carbonate. The synthesized HPMA together with HEDP and PM showed higher antiscale efficiency and synergetic effect on the crystal of calcium carbonate. (C) 2011 Elsevier B.V. All rights reserved.

引用

页码：238 / 244

页数：7

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