SOLID STATE REDUCTION OF CHROMITE IN HIGH CARBON FERROCHROMIUM-CHROMITE COMPOSITE PELLETS

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ATAEI A.; HESHMATI MANESH S.; SHEYBANI S.; KHAYATI G.R.; FIROUZBAKHT Y.; SARGHEYNI J.

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Journal Paper

Paper Information

Journal: Iranian Journal of Materials Science and Engineering Year:2008 | Volume:5 | Issue:1 Page(s): 22-28

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Title

SOLID STATE REDUCTION OF CHROMITE IN HIGH CARBON FERROCHROMIUM-CHROMITE COMPOSITE PELLETS

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Keywords

REACTION KINETICS

SOLID STATE REDUCTION

FERROCHROMIUM

ACTIVATION ENERGY

Abstract

In this paper SOLID STATE REDUCTION of high carbon FERROCHROMIUM-chromite composite pellets in the temperature range of 900-1350°C was investigated. A two stage reduction mechanism is proposed. The first stage is likely to be controlled by the chemical reaction with ACTIVATION ENERGY of 127.2kJ/mol. In the second stage, solid state diffusion of carbon through the reaction product layer is suggested to be rate controlling. The ACTIVATION ENERGY of this stage was calculated to be 93.1Kj/mol. The reduction process was found to be favored by high temperatures as well as high vacuum. The results also show that pre-milling of initial mixture has a negative effect on the reduction degree.

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APA: Copy

ATAEI, A., HESHMATI MANESH, S., SHEYBANI, S., KHAYATI, G.R., FIROUZBAKHT, Y., & SARGHEYNI, J.. (2008). SOLID STATE REDUCTION OF CHROMITE IN HIGH CARBON FERROCHROMIUM-CHROMITE COMPOSITE PELLETS. IRANIAN JOURNAL OF MATERIALS SCIENCE AND ENGINEERING, 5(1), 22-28. SID. https://sid.ir/paper/276690/en

Vancouver: Copy

ATAEI A., HESHMATI MANESH S., SHEYBANI S., KHAYATI G.R., FIROUZBAKHT Y., SARGHEYNI J.. SOLID STATE REDUCTION OF CHROMITE IN HIGH CARBON FERROCHROMIUM-CHROMITE COMPOSITE PELLETS. IRANIAN JOURNAL OF MATERIALS SCIENCE AND ENGINEERING[Internet]. 2008;5(1):22-28. Available from: https://sid.ir/paper/276690/en

IEEE: Copy

A. ATAEI, S. HESHMATI MANESH, S. SHEYBANI, G.R. KHAYATI, Y. FIROUZBAKHT, and J. SARGHEYNI, “SOLID STATE REDUCTION OF CHROMITE IN HIGH CARBON FERROCHROMIUM-CHROMITE COMPOSITE PELLETS,” IRANIAN JOURNAL OF MATERIALS SCIENCE AND ENGINEERING, vol. 5, no. 1, pp. 22–28, 2008, [Online]. Available: https://sid.ir/paper/276690/en

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