摘要：

建立了基于单一电导率监测,保持碳酸钙溶液析晶过程中,溶液中各组分浓度恒定的"恒定组分"实验技术,研究了不同种类的非化学配比阻垢剂的阻垢效果和不同浓度的PBTC的阻垢效果.发现不同的阻垢剂或者相同阻垢剂不同剂量所起到的阻垢效果反映在"抑制平台"的长短上.平台期过后,晶体的生长与不加阻垢剂的实验无显著的区别.实验图形反映了恒定组分系统具有很高的灵敏度和高度的可重复性.我们认为,平台长短反映了阻垢效果,可以作为评价阻垢剂效能的指标.

关键词: 恒定组分方法, 化学阻垢剂, 静态阻垢法

Abstract:

We established a Constant Composition System which could keep all the composition of calcium carbonate aqueoussolution constant throughout precipitation process.By using the system,the inhibition characteristics of kinds of chemical scale inhibitors,and effects of different concentration of the inhibitor,PBTC have been evaluated.Recorded kinetics of precipitation clearly show that the addition of inhibitor takes a period of time,over which crystal growth is impeded.Eventually,however,the ability of the inhibitor to control the crystal growth diminishes and rapid normal growth is reinitiated.The amount of inhibition time provides information about the effectiveness of inhibitors.Compared to the static scale inhibition method,the Constant Composition System has good sensitivity and reproducibility.

Key words: constant composition method, chemical scale inhibitor, static scale inhibition method

中图分类号: 

• TQ085