有机膦缓蚀剂YWY的缓蚀性能评价  

PROPERTY EVALUATION OF ORGANIC PHOSPHOROS CORROSION INHIBITOR YWY IN BITTER SALT WATER

作　　者：杨国华[1] 王贺振[1] 杨普江[1] 王保三[1] 隋希华 张庆轩[1] 

机构地区：[1]石油大学化学化工学院,山东东营257061

出　　处：《石油大学学报（自然科学版）》2000年第6期55-56,共2页Journal of the University of Petroleum,China(Edition of Natural Science)

摘　　要：对东营地区地下苦咸水的水质分析表明 ,苦咸水中的Cl-含量高达 10 80 2～ 385 6 3mg/L ,具有高氯、高矿化度的特点。采用电化学稳态极化法和腐蚀失重法评价了苦咸水对碳钢的腐蚀作用。结果表明 ,未加缓蚀剂时苦咸水严重腐蚀碳钢 ,腐蚀速率为 0 .42 5 5mm/a。针对苦咸水的水质特征合成了有机膦缓蚀剂 ,当缓蚀剂浓度为 12mg/L时 ,能很好地抑制腐蚀 ,使碳钢的腐蚀速率降为 0 .0 2 2 8mm/a,缓蚀效率达 95 % 。The underground water in Dongying area is of high saltness and chlorinity. The chlorine content in the bitter salt water is up to 10802～38563 mg/L, which has a serious corrosion to carbon steel. A novel inhibitor YWY is synthesized, and the inhibitation is evaluated by using weight\|losing corrosion test and electrochemistry test. The results show that the corrosion rate of carbon steel is 0.0228 mm per year when the concentration of YWY inhibitor is 12 mg/L. The protection efficiency is 95%, which can meet the corrosion resistance standard of China very well.

关 键 词：苦碱水 有机膦缓蚀剂 腐蚀速度 YWY 缓蚀性能 

分 类 号：TG174.42[金属学及工艺—金属表面处理]