inhibition of calcium carbonate and sulfate scales by a non-phosphorus terpolymer aa-apey-amps
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12/7/2014 Taylor & Francis Online
http://www.tandfonline.com/doi/full/10.1080/19443994.2014.979443#.VIRJWDGUfp5 1/3
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Desalination and Water Treatment Select Language ▼Translator disclaimer
Inhibition of calcium carbonate and sulfate scales by a nonphosphorus terpolymer AAAPEYAMPS
DOI:10.1080/19443994.2014.979443
Yunyun Bua, Yuming Zhoua*, Qingzhao Yaoa*, Yiyi Chena, Wei Sunb & Wendao WubPublishing models and article dates explained
Received: 21 Jan 2014Accepted: 17 Oct 2014Published online: 05 Nov 2014
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Abstract
The inhibition of calcite crystal growth by acrylic acidallylpolyethoxy carboxylate2acrylamido2methylpropanesulfonic acid (AAAPEYAMPS, PAYS forshort) was investigated in the coolingwater system. The terpolymer was prepared via the copolymerization of acrylic acid (AA), allylpolyethoxy carboxylate(APEY) and 2acrylamido2methylpropanesulfonic acid (AMPS), whose structures were characterized by FTIR and 1H NMR. In this study, we haveinvestigated the effect of the agent concentration and the ratio of the reactant. The experimental results show that AAAPEYAMPS is an effective chelating scaleinhibitor and it has high efficiency toward scales and nearly 90% for calcium carbonate and 100% for calcium sulfate. The produced crystals were characterized byusing scanning electron microscopy and Xray diffraction methods. It appears that the crystal shape, size, and the morphology of scale have changed apparently atthe dosage of 5 mg/L. Based on the contrast experiment of the problem of scale formation, this paper analyses the mechanism of scale formation and the advantageof PAYS. The supporting mechanism of scale formation was also described and analyzed briefly.
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12/7/2014 Taylor & Francis Online
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Keywords
Terpolymer,Nonphosphate antiscalant,Calcium carbonate,Calcium sulfate,Mechanism
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DetailsReceived: 21 Jan 2014Accepted: 17 Oct 2014Published online: 05 Nov 2014
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a School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, P.R. China
*
12/7/2014 Taylor & Francis Online
http://www.tandfonline.com/doi/full/10.1080/19443994.2014.979443#.VIRJWDGUfp5 3/3
b Jianghai Environmental Protection Co., Ltd, Changzhou 213116, Jiangsu, P.R. China
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