|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||9th International Symposium on High Temperature Metallurgical Processing
||Carbothermic Direct Reduction of Chromite Using a Segregation Catalyst for the Production of Ferrochrome
||Dawei Yu, Dogan Paktunc, Nasseh Khodaie
|On-Site Speaker (Planned)
Production of ferrochrome alloys through smelting of chromite ores/concentrates in an electric arc furnace is a highly energy-intensive process, with a significant portion of the overall energy consumption being in the form of electricity. As an effort to reduce the energy requirement and its heavy dependency on electric energy, an alternate process for the production of ferrochrome was devised. This proposed process was based on the utilization of calcium chloride (CaCl2) as a segregation catalyst for the carbothermic direct reduction of chromite, to allow the accelerated reduction to take place effectively at much lower temperatures (e.g. 1300 °C). The ferrochrome alloy particles formed in the reduced product are well liberated from the gangue materials, facilitating the subsequent physical separation and beneficiation of the ferrochrome alloy. By taking advantage of the highly water-soluble nature of CaCl2, its recovery from the reduced product can be performed simply with water leaching.