Corecovery of manganese from pyrolusite and gold from
1/1/2020#0183;#32;Fig. 3 shows the experimental equipment. It consisted of a twochamber fluidized bed reactor, nitrogen cylinder, steam generator, resistance furnace, and rotameter []. carbonaceous gold ore (lt;74 m) and pyrolusite (lt;74 m) were added into chamber I and II of fluidized bed reactor according to the mass N 2 was introduced into the experimental equipment to remove the oxidizing