Investigating the effects of charge components on metallic chromium production via the aluminothermic route with no external energy

G. Orhan; C. Arslan

doi:10.1007/bf03402821

Investigating the effects of charge components on metallic chromium production via the aluminothermic route with no external energy

G. Orhan^*, C. Arslan

^*Corresponding author for this work

Department of Metallurgical and Materials Engineering

Istanbul Technical University

Research output: Contribution to journal › Article › peer-review

Abstract

The possibility of producing metallic chromium from Cr₂O₃ via the aluminothermic route, with no external energy supply, was the subject of this laboratory-scale research. The experimental study focused on investigating the individual effects and quantitative optimization of the charge contents, i.e., the additions of CrO₃, Al powder and CaO (or BaO). The highest chromium recovery of 98% was attained with the additions of 12% CrO₃ and 1.2 times the stoichiometrically required amount of Al powder. The optimum CaO addition giving the highest chromium recovery was found when the CaO/Al weight ratio in the charge was equal to 0.3. When BaO was used, however, 95% Cr extraction efficiency was obtained at a BaO/Al weight ratio of 0.15.

Original language	English
Article number	98-310
Pages (from-to)	62-64
Number of pages	3
Journal	Minerals and Metallurgical Processing
Volume	16
Issue number	3
DOIs	https://doi.org/10.1007/bf03402821
Publication status	Published - Aug 1999

Keywords

Aluminothermic reaction
Chromate
Metallic chromium

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10.1007/bf03402821

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title = "Investigating the effects of charge components on metallic chromium production via the aluminothermic route with no external energy",

abstract = "The possibility of producing metallic chromium from Cr2O3 via the aluminothermic route, with no external energy supply, was the subject of this laboratory-scale research. The experimental study focused on investigating the individual effects and quantitative optimization of the charge contents, i.e., the additions of CrO3, Al powder and CaO (or BaO). The highest chromium recovery of 98% was attained with the additions of 12% CrO3 and 1.2 times the stoichiometrically required amount of Al powder. The optimum CaO addition giving the highest chromium recovery was found when the CaO/Al weight ratio in the charge was equal to 0.3. When BaO was used, however, 95% Cr extraction efficiency was obtained at a BaO/Al weight ratio of 0.15.",

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author = "G. Orhan and C. Arslan",

year = "1999",

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N2 - The possibility of producing metallic chromium from Cr2O3 via the aluminothermic route, with no external energy supply, was the subject of this laboratory-scale research. The experimental study focused on investigating the individual effects and quantitative optimization of the charge contents, i.e., the additions of CrO3, Al powder and CaO (or BaO). The highest chromium recovery of 98% was attained with the additions of 12% CrO3 and 1.2 times the stoichiometrically required amount of Al powder. The optimum CaO addition giving the highest chromium recovery was found when the CaO/Al weight ratio in the charge was equal to 0.3. When BaO was used, however, 95% Cr extraction efficiency was obtained at a BaO/Al weight ratio of 0.15.

AB - The possibility of producing metallic chromium from Cr2O3 via the aluminothermic route, with no external energy supply, was the subject of this laboratory-scale research. The experimental study focused on investigating the individual effects and quantitative optimization of the charge contents, i.e., the additions of CrO3, Al powder and CaO (or BaO). The highest chromium recovery of 98% was attained with the additions of 12% CrO3 and 1.2 times the stoichiometrically required amount of Al powder. The optimum CaO addition giving the highest chromium recovery was found when the CaO/Al weight ratio in the charge was equal to 0.3. When BaO was used, however, 95% Cr extraction efficiency was obtained at a BaO/Al weight ratio of 0.15.

KW - Aluminothermic reaction

KW - Chromate

KW - Metallic chromium

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JO - Minerals and Metallurgical Processing

JF - Minerals and Metallurgical Processing

IS - 3

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Investigating the effects of charge components on metallic chromium production via the aluminothermic route with no external energy

Abstract

Keywords

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