A pyro-hydrometallurgical process for the recovery of alumina from waste aluminium dross

التفاصيل البيبلوغرافية
العنوان: A pyro-hydrometallurgical process for the recovery of alumina from waste aluminium dross
المؤلفون: A.K. Tripathy, Kali Sanjay, Chinmaya Kumar Sarangi, I.N. Bhattacharya, Santosh Kumar Mahalik, Bankim Chandra Tripathy
المصدر: Minerals Engineering. 137:181-186
بيانات النشر: Elsevier BV, 2019.
سنة النشر: 2019
مصطلحات موضوعية: Materials science, Mechanical Engineering, Dross, Aluminium hydroxide, Metallurgy, Activated alumina, chemistry.chemical_element, 02 engineering and technology, General Chemistry, 010501 environmental sciences, Laboratory scale, Geotechnical Engineering and Engineering Geology, Alkali metal, 01 natural sciences, 020501 mining & metallurgy, chemistry.chemical_compound, 0205 materials engineering, chemistry, Control and Systems Engineering, Aluminium, Hydroxide, Leaching (metallurgy), 0105 earth and related environmental sciences
الوصف: To maintain a balance between sustainable development in the industries and natural environment, recycling of metal values is essential part of the ecosystem. In this aspect recycling of waste aluminium dross is of great importance. Dross formation is accomplished by natural oxidation of molten aluminium essentially on the surface of the melt while reclaiming particularly the secondary metal. In this work main focus was to develop a suitable process flow sheet for the production of pure alumina from waste aluminium dross. The method followed was soda – roast and dilute alkali leaching route and employing certain purification steps. About 90% recovery of alumina was obtained. The main advantage of the process was the recycling of the chemicals used in the system. The aluminium hydroxide obtained was bayerite in nature. This hydroxide can be utilised as the precursor material for obtaining different varieties of activated alumina through heat treatment for their use in non-metallurgical applications. A tentative cost analysis has been provided based on laboratory scale data.
تدمد: 0892-6875
DOI: 10.1016/j.mineng.2019.04.009
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_________::b13c6948e13f194b77c971e108da8434
https://doi.org/10.1016/j.mineng.2019.04.009
Rights: CLOSED
رقم الانضمام: edsair.doi...........b13c6948e13f194b77c971e108da8434
قاعدة البيانات: OpenAIRE
الوصف
تدمد:08926875
DOI:10.1016/j.mineng.2019.04.009