متالورژی منگنز -Manganese metallurgy

Manganese metallurgy review . Part I: Leaching of ores/secondary materials and

recovery of electrolytic/chemical manganese dioxide

مروری بر متالورژی منگنز. قسمت I: فروشویی سنگ‌های‌معدنی/مواد ثانویه

و بازیافت الکترولیتی/شیمیایی دی‌اکسید منگنز

ABSTRACT

The world rapidly growing demand for manganese hasmade it increasingly important to develop processes for economical recovery of manganese from low grade manganese ores and other secondary sources. Part I of this review outlines metallurgical processes for manganese production from various resources, particularly focusing on recent developments in direct hydrometallurgical leaching and recovery processes to identify potential sources of manganese and products which can be economically produced. 

High grade manganese ores (N40%) are typically processed into suitable metallic alloy forms by pyrometallurgical processes. Low grade manganese ores (b40%) are conventionally processed by pyrometallurgical reductive roasting or melting followed by hydrometallurgical processing for production of chemical manganese dioxide (CMD), electrolytic manganese (EM) or electrolytic manganese dioxide (EMD).