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

Liu, Aimin; Shi, Zhongning; Xie, Kaiyu; Hu, Xianwei; Gao, Bingliang; Korenko, Michal; Wang, Z.

doi:10.2298/jmmb160616006l

Cited by 10 publications

(1 citation statement)

References 20 publications

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“…3(c). Liu et al, provided a complete report on the DSC curve of Al+Fe 2 O 3 mixture, as well as the conditions for the formation of various combinations of these two compounds [32].…”

Section: Endothermic Peak At 660ºcmentioning

confidence: 99%

Formation mechanism of Fe-Mo master alloy by aluminothermic reduction of MoS2-Fe2O3 in the presence of lime

Golmakani

Khaki

Babakhani

2018

J min metall B Metall

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The reaction mechanism of MoS 2-Fe 2 O 3 aluminothermic reduction in the presence of lime using microwave-assisted combustion synthesis method was surveyed. Achieving technical feasibility in one-step production of ferromolybdenum along with sulfur removing in solid form are the main features of this novel process. Simultaneous Preliminary thermoanalytical investigations DSC/TGA and X-ray diffraction experiments during the heating process of 0.42MoS 2 +1.14Al + 0.29Fe 2 O 3 +0.84CaO demonstrated four key sequential endothermic and exothermic reactions at 420, 540, 660, and 810 o C. The most noteworthy reactions involve evaporation of moisture and volatile matter, molybdenite roasting, simultaneous production of lateral compounds such as CaMoO 4 and CaSO 4 , aluminum melting transition, and final termite reaction. Kinetics procedure of the system was conducted using a classical model-free approach by Kissinger-Akahira-Sunose (KAS) method. In this study, the activation energy was determined about 106.4 (kJ.mol-1) for thermite reaction in the temperature range of 810 to 918 o C.

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“…3(c). Liu et al, provided a complete report on the DSC curve of Al+Fe 2 O 3 mixture, as well as the conditions for the formation of various combinations of these two compounds [32].…”

Section: Endothermic Peak At 660ºcmentioning

confidence: 99%