Preparation and Usage of High Quality Manganese-Containing Materials from Ferroalloy Production Waste

Abstract

We propose a flow diagram for processing ferroalloy production waste, such as silicothermic slag from manganese metal, as well as wet and dry powder of cleaning gas from ferroalloy furnaces that smelt manganese alloys. We experimentally determined the parameters for intensifying the calcium chloride method of enriching ferroalloy production waste, which resulted in a manganese extraction rate of 78-86%, with high-quality manganese concentrates. We present the results of studies related to the use of high-quality concentrates to dope steel with manganese, when processing it in a bucket, and smelting manganese metal via the aluminothermic method.

Investigation of the beneficiation of refractory ferromanganese ores “Zhomart” deposits

“…In the process of studying the physical and mechanical properties of iron-manganese ore has been determined that: the true ore density is 3.57 g/cm 3 ; the bulk ore density (size -50+0.0 mm) is 2.01 g/cm 3 ; the bulk ore density (size -2.5+0.0 mm) is 1.73 g/cm 3 In the course of the ore beneficiation study, a granulometric analysis was carried out (Table 1) to determine the size classes in which iron or manganese are mainly concentrated.…”

“…Positive results on the beneficiation of the test samples were not obtained, since the ore is difficult to enrich, manganese-iron concentrate (19.9% Mn and 12.7% Fe) and ironbearing concentrate (8.3% Mn and 31.3% Fe) were obtained. Therefore, hydrometallurgical methods of beneficiation of refractory iron-manganese ore were applied [3]. Autoclave stadial leaching was applied using calcium and iron chlorides as a solvent.…”