Choice of Corrosion Resisting Materials in Extraction of Metals

Abstract

For recovery of different metals from metallic ores, chemical and gyro-metallurgical treatments, such as roast-ing, smelting and leaching are performed under varying conditions of temperatures, pressures and corroding media. Since the economics of a process is influenced among others by the life of the equipment, materials for cons-truction thereof are selected so as to possess required resistance to corrosion and abrasion. This paper reviews the use of various metals and alloys possessing maximum corrosion resistance for extraction of metals under certain specified conditions.