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Vol.3 , No. 1, Publication Date: Feb. 15, 2016, Page: 1-5
 and PASP-based composite were studied. The results showed the single PASP has good scale and corrosion inhibition performances, but the quantity of PASP used for corrosion inhibition is large (100mg/L). To reduce cost, PASP-based composite was prepared from PASP, BTA, sodium tungstate and sodium gluconate with different scales. The optimal proportioning mass ratio is as follows: PASP: BTA: sodium tungstate: sodium gluconate is 10:0.5:20:10 (total concentration: 40.5 mg/L). Experimental results showed the corrosion rate of HSn-70A copper is only 0.0006 mm/a and corresponding corrosion inhibiting rate reaches 99.22%. The small dynamic simulation showed that inhibition rate of this PASP-based composite can reach more than 90% even in high hardness and concentration. The water treatment agent has advantages of small dosage, low cost, easy degradation, environmentally friendly, etc.&picture=http://www.aascit.org/aascit/decorators/img/journal/905.jpg)
| [1] | Yushan Cheng, Institute of Energy Research, Henan Academy of Sciences, Zhengzhou, He’Nan Province, China. |
| [2] | Caixia Sun, Institute of Energy Research, Henan Academy of Sciences, Zhengzhou, He’Nan Province, China. |
| [3] | Yanmin Chen, Institute of Energy Research, Henan Academy of Sciences, Zhengzhou, He’Nan Province, China. |
| [4] | Yincong Sun, Institute of Energy Research, Henan Academy of Sciences, Zhengzhou, He’Nan Province, China. |
| [5] | Changshan Huang, Institute of Energy Research, Henan Academy of Sciences, Zhengzhou, He’Nan Province, China. |
In this article, the scale and corrosion inhibition performances of Polyaspartic acid (PASP) and PASP-based composite were studied. The results showed the single PASP has good scale and corrosion inhibition performances, but the quantity of PASP used for corrosion inhibition is large (100mg/L). To reduce cost, PASP-based composite was prepared from PASP, BTA, sodium tungstate and sodium gluconate with different scales. The optimal proportioning mass ratio is as follows: PASP: BTA: sodium tungstate: sodium gluconate is 10:0.5:20:10 (total concentration: 40.5 mg/L). Experimental results showed the corrosion rate of HSn-70A copper is only 0.0006 mm/a and corresponding corrosion inhibiting rate reaches 99.22%. The small dynamic simulation showed that inhibition rate of this PASP-based composite can reach more than 90% even in high hardness and concentration. The water treatment agent has advantages of small dosage, low cost, easy degradation, environmentally friendly, etc.
Keywords
Polyaspartic Acid, Scale Inhibition, Corrosion Inhibition, Circulating Cooling Water
Reference
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