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Recovery of high pure alumina from aluminum hazardous waste using facileand inexpensive method

عنوان مقاله: Recovery of high pure alumina from aluminum hazardous waste using facileand inexpensive method
شناسه (COI) مقاله: IIAC04_101
منتشر شده در چهارمین کنفرانس بین المللی آلومینیوم ایران IIAC2016 در سال 1395
مشخصات نویسندگان مقاله:

M Abbasnia Tehrani - Chemistry & Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
M.A Kiani - Chemistry & Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran
H Sayahi - Chemistry & Chemical Engineering Research Center of Iran, P.O. Box 14335-186, Tehran, Iran

خلاصه مقاله:
To avoid environmental problems and to recovery the aluminium, a processing method was developed and aluminium was recovered as an added value product such as alumina from hazardous aluminium solid waste (HAW) as raw material. Different methods were performed to get high purity of alumina in an inexpensive way in order to being useful for industrial scales. All methods refer to a process at relatively low temperature, in more stages: acid or base leaching, purification, precipitation and calcination. At the end of this process aluminium was extracted, first as Al3+soluble ions and final as alumina product. The composition of the aluminium dross and alumina powder was measured by using Energy-dispersive X-ray spectroscopy (EDX). The method presented in this work allows the use of hazardous aluminium solid waste as raw material to recover an important fraction from soluble aluminium content as an added value product, alumina, with high grade purity (99.5%).

کلمات کلیدی:
Alumina, Hazardous Aluminium Solid Waste, Acid Leaching

صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/690249/