造纸白液介质中碳钢电化学保护研究  

ELECTROCHEMICAL PROTECTION OF CARBON STEEL IN WHITE LIQUID IN PAPER MILL

作　　者：胡肆福[1] 许川壁[1] 陈文平[1] 

机构地区：[1]中国科学院福建物质结构研究所二部,厦门361012

出　　处：《腐蚀与防护》2000年第9期387-389,共3页Corrosion & Protection

摘　　要：针对造纸厂碱回收的白液碳钢储槽严重腐蚀现象 ,采用电化学方法 ,探讨碳钢在白液 (80°C)中的腐蚀行为 ,进行极化曲线测试和腐蚀挂片实验 ,获得了恒电位 (-1180～ -12 2 0 m V,vs.SCE)阴极保护的保护度达99%以上、恒电位 (-80 0～ -90 0 m V,vs.SCE)阳极保护的保护度达 98%和恒电流 (0 .7A/m2 )阴极保护的保护度达97%等科学数据 ,为造纸白液中碳钢的电化学保护提供了重要参数。In order to control the severe corrosion of carbon steel container for white liquid in paper mill, polarization curve measurements and exposure experiments were carried out. A series of important paramenters necessary for the consideration of application of electrochemical protection was obtained. Under potentiostatic mode(-1180^-1220mV,vs.SCE)and galvanostatic mode (0.7A/m 2), the cathodic protection efficiency reached>99% and 97%, respectively. For the potentiostatic anodic protection (-800^-900mV,vs.SCE), the efficiency was 98%.

关 键 词：碳钢 造纸 白液 电化学保护 碱回收 储槽 

分 类 号：TS733.9[轻工技术与工程—制浆造纸工程]