Abstract
The polyaspartic acid derivative compound was applicated in circulating cooling water system with high concentration multiple with the water quality of circulating cooling water system was characterized by higher hardness, higher alkalinity and higher corrosive ion content in order to solve the problem of scale and corrosion of the circulating cooling water system. The formulation of the polyaspartic acid derivative compound was determined to be PASP-AESA-ASP, ZnSO4, HPAA and BTA with the mass ratio of 15:4:6:0.1. The polyaspartic acid derivative compound had a good protective effect on A3 carbon steel in high-concentration-salt water and good biodegradability.
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