Calcium sulfate dihydrate (gypsum) scale inhibition by PAA, PAPEMP, and PAA/PAPEMP blend

被引：42

作者：

Amjad, Z. ^{[1
]}

Landgraf, R. T. ^{[1
]}

Penn, J. L. ^{[1
]}

机构：

[1] Walsh Univ, Div Math & Sci, North Canton, OH 44720 USA

来源：

INTERNATIONAL JOURNAL OF CORROSION AND SCALE INHIBITION | 2014年 / 3卷 / 01期

关键词：

calcium sulfate dihydrate; precipitation; inhibition; polymer; phosphonates;

D O I：

10.17675/2305-6894-2014-3-1-035-047

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The effects of poly(acrylic acid), PAA, polyamino polyether methylene phosphonic acid, PAPEMP, and PAA/PAPEMP blend on calcium sulfate dihydrate (gypsum) are reported in this paper. It has been found that gypsum inhibition by PAA increases with increasing PAA concentration. Among the various phoshonates (i.e., aminotris(methylene phosphonic acid), AMP; hydroxyphosphono acetic acid, HPA; hydroxyethylidene 1,1-diphosphonic acid, HEDP; 2-phosphonobutane 1,2,4-tricarboxylic acid, PBTC; and polyether polyamino phosphonic acid, PAPEP) evaluated, PAPEMP shows the best inhibition for gypsum precipitation. It has also been observed that presence of PAPEMP exhibits synergistic effect on the performance of PAA. Results on calcium ion compatibility of various phosphonates show that PAPEMP compared to other phosphonates tested show higher tolerance to calcium ions.

引用

页码：35 / 47

页数：13

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