Aluminothermic reduction of metal oxides by concentrated solar irradiation

Abstract

Figure 2. Schematic of the ATR process using both the trough collector and the dish concentrator.

Extraction of Al-Si master alloy and alumina from coal fly ash

“…However, the energy consumption and production cost would be markedly reduced if alumina can be acquired from coal fly ash via a short process. In recent years, numerous experiments have established that metals and alloys such as Si [9][10][11], Mg [12], Al-Ti-Fe alloy [13,14], and V-Ti-Fe alloy [15,16] can be obtained from their metal oxides via aluminothermic reduction. However, few studies have focused on the extraction of metals from the mixed oxides of coal fly ash via aluminothermic reduction.…”