FAILURE ANALYSIS ON CORROSION OF PTA OXIDATION EQUIPMENTS
PTA氧化设备腐蚀失效分析

In this paper,failed components of PTA oxidation equipments were examined by using optical microscopy,scanning electron microscopy and EDS analysis et al.The results showed that uniform corrosion,pitting,erosion corrosion and their interaction are the main causes of the failure of the PTA oxidation equipments in the environment containing acetic acid,Br~- and fluid steam and liquid.Besides,some measures for corrosion prevention are proposed.