Recovery of Aluminum from Industrial Waste (Slag) by Melting and Electrorefining Processes

Slag of aluminum is a residue which results during the melting process of primary and secondary aluminum production. Salt slag of aluminum is hazardous solid waste according to the European Catalogue for Hazardous Wastes. Hence, recovery of aluminum not only saves the environment, but also has adva...

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Autores principales:	Maytham Mahmood Ali, Rabiha Saleh Yassen
Formato:	article
Lenguaje:	EN
Publicado:	Al-Khwarizmi College of Engineering – University of Baghdad 2018
Materias:	Design of Experiment (DOE), Electro-refining, Melting process, %Recovery, Salt slag of aluminum. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
Acceso en línea:	https://doaj.org/article/b403cd1a83c54672ae8934b36d0aec84
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spelling	oai:doaj.org-article:b403cd1a83c54672ae8934b36d0aec842021-12-02T02:33:57ZRecovery of Aluminum from Industrial Waste (Slag) by Melting and Electrorefining Processes10.22153/kej.2018.03.0021818-11712312-0789https://doaj.org/article/b403cd1a83c54672ae8934b36d0aec842018-09-01T00:00:00Zhttp://alkej.uobaghdad.edu.iq/index.php/alkej/article/view/92https://doaj.org/toc/1818-1171https://doaj.org/toc/2312-0789 Slag of aluminum is a residue which results during the melting process of primary and secondary aluminum production. Salt slag of aluminum is hazardous solid waste according to the European Catalogue for Hazardous Wastes. Hence, recovery of aluminum not only saves the environment, but also has advantages of financial and economic returns. In this research, aluminum was recovered and purified from the industrial wastes generated as waste from both of State Company for Electrical and Electronic Industries (Baghdad/AlWaziriya) and General Company for Mechanical Industries (Babylon/-Al-Escandria). It was found that these wastes contain tiny proportions of other elements such as iron, copper, nickel, titanium, lead, and potassium. Wastes were recovered for green sustainability, saving energy and cost effectiveness. The method applied for recovering aluminum was pyro-metallurgical method by smelting and refining. X-Ray fluorescence spectroscopy and X- Ray diffraction techniques of the slag sample were used to determine the chemical analysis and phases, respectively. Melting experiments were conducted by using different types of fluxes (KAlF4, NaCl, KCl and AlCl3) at different percentages (0, 5, 10 %) and different melting temperatures (700, 750, 800oC). Design of Experiment (DOE) by Taguchi method, orthogonal array L9, was used in melting experiments. Melting efficiency of aluminum was equal to 84.7%. Electro-refining of aluminum was done by using anhydrous aluminum chloride and NaCl as ionic liquids at low temperature 100 ◦C in electro-refining method producing aluminum of 99% purity. Maytham Mahmood AliRabiha Saleh YassenAl-Khwarizmi College of Engineering – University of BaghdadarticleDesign of Experiment (DOE), Electro-refining, Melting process, %Recovery, Salt slag of aluminum.Chemical engineeringTP155-156Engineering (General). Civil engineering (General)TA1-2040ENAl-Khawarizmi Engineering Journal, Vol 14, Iss 3 (2018)
institution	DOAJ
collection	DOAJ
language	EN
topic	Design of Experiment (DOE), Electro-refining, Melting process, %Recovery, Salt slag of aluminum. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040
spellingShingle	Design of Experiment (DOE), Electro-refining, Melting process, %Recovery, Salt slag of aluminum. Chemical engineering TP155-156 Engineering (General). Civil engineering (General) TA1-2040 Maytham Mahmood Ali Rabiha Saleh Yassen Recovery of Aluminum from Industrial Waste (Slag) by Melting and Electrorefining Processes
description	Slag of aluminum is a residue which results during the melting process of primary and secondary aluminum production. Salt slag of aluminum is hazardous solid waste according to the European Catalogue for Hazardous Wastes. Hence, recovery of aluminum not only saves the environment, but also has advantages of financial and economic returns. In this research, aluminum was recovered and purified from the industrial wastes generated as waste from both of State Company for Electrical and Electronic Industries (Baghdad/AlWaziriya) and General Company for Mechanical Industries (Babylon/-Al-Escandria). It was found that these wastes contain tiny proportions of other elements such as iron, copper, nickel, titanium, lead, and potassium. Wastes were recovered for green sustainability, saving energy and cost effectiveness. The method applied for recovering aluminum was pyro-metallurgical method by smelting and refining. X-Ray fluorescence spectroscopy and X- Ray diffraction techniques of the slag sample were used to determine the chemical analysis and phases, respectively. Melting experiments were conducted by using different types of fluxes (KAlF4, NaCl, KCl and AlCl3) at different percentages (0, 5, 10 %) and different melting temperatures (700, 750, 800oC). Design of Experiment (DOE) by Taguchi method, orthogonal array L9, was used in melting experiments. Melting efficiency of aluminum was equal to 84.7%. Electro-refining of aluminum was done by using anhydrous aluminum chloride and NaCl as ionic liquids at low temperature 100 ◦C in electro-refining method producing aluminum of 99% purity.
format	article
author	Maytham Mahmood Ali Rabiha Saleh Yassen
author_facet	Maytham Mahmood Ali Rabiha Saleh Yassen
author_sort	Maytham Mahmood Ali
title	Recovery of Aluminum from Industrial Waste (Slag) by Melting and Electrorefining Processes
title_short	Recovery of Aluminum from Industrial Waste (Slag) by Melting and Electrorefining Processes
title_full	Recovery of Aluminum from Industrial Waste (Slag) by Melting and Electrorefining Processes
title_fullStr	Recovery of Aluminum from Industrial Waste (Slag) by Melting and Electrorefining Processes
title_full_unstemmed	Recovery of Aluminum from Industrial Waste (Slag) by Melting and Electrorefining Processes
title_sort	recovery of aluminum from industrial waste (slag) by melting and electrorefining processes
publisher	Al-Khwarizmi College of Engineering – University of Baghdad
publishDate	2018
url	https://doaj.org/article/b403cd1a83c54672ae8934b36d0aec84
work_keys_str_mv	AT maythammahmoodali recoveryofaluminumfromindustrialwasteslagbymeltingandelectrorefiningprocesses AT rabihasalehyassen recoveryofaluminumfromindustrialwasteslagbymeltingandelectrorefiningprocesses
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Recovery of Aluminum from Industrial Waste (Slag) by Melting and Electrorefining Processes

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