This Page seems to be at the varied elements which affect the selection of system for extracting metals from their ores, such as reduction by carbon, reduction by a reactive steel (like sodium or magnesium), and by electrolysis. Roasting and calcination are carried out in different types of furnaces; the https://metallurgicalprocesses46789.hazeronwiki.com/7242701/5_easy_facts_about_metallurgical_processes_described