Novel Non-phosphorous Antiscalants for Inhibition of Calcium Phosphate and Calcium Sulfate Precipitation

被引:2
作者
Fu, Change [1 ]
Zhou, Yuming [1 ]
Liu, Guangqing [1 ]
机构
[1] Southeast Univ, Sch Chem & Chem Engn, Nanjing 211189, Jiangsu, Peoples R China
来源
FUNDAMENTAL OF CHEMICAL ENGINEERING, PTS 1-3 | 2011年 / 233-235卷
关键词
Calcium phosphate; Calcium sulfate; Inhibition; Non-phosphorous antiscalant; Industrial cooling-water; SCALE CONTROL; COPOLYMERS; COMPLEX;
D O I
10.4028/www.scientific.net/AMR.233-235.117
中图分类号
TQ [化学工业];
学科分类号
0817 ;
摘要
A copolymer of acrylic acid (AA)/allylpolyethoxy carboxylate (APEC) was synthesized, characterized and examined as a non-phosphorous antiscalant for industrial cooling-water. Its ability to prevent calcium phosphate and sulfate precipitation was compared with inhibitory power of acrylic acid (AA)/allylpolyethoxy sulfate (APES) and polyamino polyether methylenephosphonate (PAPEMP). Results indicate that the presence of these antiscalants does reduce the extend of calcium phosphate and sulfate precepitation and AA/APEC exhibits the best performance with 99.59% calcium-phosphate inhibition when the dosage of AA/APEC was 6 mg/L and 82.88% calcium-sulfate inhibition at the dosage of 3 mg/L AA/APEC. AA/APEC has also been proven to be an effective inhibitor for calcium phosphate and calcium sulfate even at elevated solution temperature, pH and Ca2+ concentration.
引用
收藏
页码:117 / 123
页数:7
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