| JIA Jing-xian,LIU Xin-hua,WANG Li-hong,FU Zhan-da,WEI Jin-fang,WANG Peng-fei,WANG Lei,ZHAO Teng-da.Study on Scale and Corrosion Inhibition Properties of Polyepoxy-succinic Acid Derivatives and Composite Formulas in Natural Seawater[J],50(12):390-399 |
| Study on Scale and Corrosion Inhibition Properties of Polyepoxy-succinic Acid Derivatives and Composite Formulas in Natural Seawater |
| Received:December 01, 2020 Revised:June 11, 2021 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2021.12.039 |
| KeyWord:seawater 2-taurine polyepoxysuccinic acid derivative scale and corrosion inhibition mechanism |
| Author | Institution |
| JIA Jing-xian |
Department of Chemistry,Tangshan , China |
| LIU Xin-hua |
Department of Chemistry,Tangshan , China ;Tangshan Key Laboratory of Green Specialty Chemicals, Tangshan Normal University, Tangshan , China |
| WANG Li-hong |
Department of Chemistry,Tangshan , China |
| FU Zhan-da |
Department of Chemistry,Tangshan , China |
| WEI Jin-fang |
Department of Chemistry,Tangshan , China |
| WANG Peng-fei |
Department of Chemistry,Tangshan , China |
| WANG Lei |
Department of Chemistry,Tangshan , China |
| ZHAO Teng-da |
Department of Chemistry,Tangshan , China |
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| Abstract: |
| In order to improve the comprehensive scale and corrosion inhibition performance of polyepoxysuccinic acid (PESA) and expand its application range, 2-aminoethylsulfonic acid (SEA) was introduced into PESA molecule to synthesize a polyepoxysuccinic acid derivative (SEA-PESA) and applied in seawater environment. SEA-PESA was synthesized by condensation of PESA and SEA, and the structure of SEA-PESA was characterized by Fourier-infrared spectroscopy and 1HNMR. Comprehensive property of scale and corrosion inhibition were studied on SEA-PESA and its quaternary formulation in natural seawater. In seawater environment, when SEA-PESA concentration is 160 mg/L, and the corrosion inhibition efficiencies of Q235 carbon steel is 61.82%, while that of PESA is only 52.17%. The corrosion inhibition rates of the quaternary formulations of PESA and SEA-PESA were 88.87% and 96.99%, respectively, and the corrosion rates were 0.06 552 mm/a and 0.017 72 mm/a. The corrosion inhibition effect of the quaternary formulations of SEA-PESA was better than PESA’s, which better met the requirements of national standards. SEA-PESA quaternary formulation is an anodic corrosion inhibitor, which mainly inhibits the anode. It also showed good scale inhibition performance in seawater, and the scale inhibition rate reached 100% at the dosage of 10 mg/L. This study confirmed the potential of SEA-PESA for corrosion inhibition and scaling inhibition in cooling systems and thermal desalination processes, especially in seawater environment, and has a broad application prospect. |
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