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阳极保护是一种较新的防腐技术。在世界上1954年才有人提出可以用它来防止金属腐蚀。1958年阳极保护第一次用于工业生产,用来防止碱性纸浆蒸煮锅的腐蚀。近几年来,有少数几个国家将阳极保护陆续用到硫酸、磷酸、有机酸、液体肥料等系统中。1961年我国开始进行阳极保护的研究,后来在个别地方小型设备上有过应用。1967年在我厂碳酸氢铵生产系统的大型设备——加压碳化副塔上,实施阳极保护,效果很好。阳极保护的原理能够钝化的金属在某些化学介质中,如果外加一
Anode protection is a newer anti-corrosion technology. It was suggested in 1954 in the world that it could be used to prevent metal corrosion. Anode protection was first used in 1958 for industrial production to prevent corrosion of alkaline pulp cooking pots. In recent years, a few countries will gradually use anodic protection of sulfuric acid, phosphoric acid, organic acids, liquid fertilizers and other systems. In 1961 our country started the research of anode protection, and later had the application in small places in some places. In 1967 in our factory ammonium bicarbonate production system of large equipment - pressure carbonation on the tower, the implementation of anode protection, the effect is very good. The principle of anodic protection can be passivated metal in some chemical medium, if one