A Simple Way to Produce γ-Alumina From Aluminum Cans by Precipitation Reactions
| Autor: | André Rosa Martins, Luciene Santos Carvalho, Ysla França Adans, Cesário Francisco das Virgens, Rodrigo Estevam Coelho, Adriana Daniela Ballarini |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2016 |
| Předmět: |
Materials science
RECYCLING γ-Alumina ALUMINUM CANS Inorganic chemistry chemistry.chemical_element Hydrochloric acid INGENIERÍAS Y TECNOLOGÍAS 02 engineering and technology Precipitation 010402 general chemistry 01 natural sciences Chloride Γ-ALUMINA law.invention chemistry.chemical_compound HIGH-ENERGY MILLING law Aluminium medicine General Materials Science Calcination Recycling Materials of engineering and construction. Mechanics of materials Precipitation (chemistry) Mechanical Engineering 021001 nanoscience & nanotechnology Condensed Matter Physics 0104 chemical sciences Ingeniería Química Ammonium hydroxide purl.org/becyt/ford/2.4 [https] chemistry purl.org/becyt/ford/2 [https] Mechanics of Materials Sodium hydroxide Aluminum Cans High-energy Milling PRECIPITATION Otras Ingeniería Química TA401-492 Hydroxide 0210 nano-technology Nuclear chemistry medicine.drug |
| Zdroj: | CONICET Digital (CONICET) Consejo Nacional de Investigaciones Científicas y Técnicas instacron:CONICET Materials Research, Vol 19, Iss 5, Pp 977-982 (2016) Materials Research v.19 n.5 2016 Materials research (São Carlos. Online) Universidade Federal de São Carlos (UFSCAR) instacron:ABM ABC ABPOL Materials Research, Volume: 19, Issue: 5, Pages: 977-982, Published: 21 JUL 2016 |
| Popis: | In this paper, a new way for γ-Alumina synthesis was proposed, the raw material being aluminum powders obtained by high-energy milling of aluminum cans. This seems a good option for this metal recycling and energy saving, as well as hydrogen production. The materials were prepared by precipitation techniques, in which aluminum powders reacted with hydrochloric acid, giving aluminum chloride, which was subsequently transformed into aluminum hydroxide by reaction with ammonium hydroxide or sodium hydroxide as precipitant agents, and finally into γ-Alumina by calcination. Results showed that the used preparation methods gave a γ-Alumina structure, confirmed by XRD, with surface areas values (174 and 204 m2 g-1) close to those of a commercial γ-Alumina Cyanamid Ketjen (180 m2 g-1) or an alumina prepared by a typical precipitation route (203 m2 g-1). Using sodium hydroxide as precipitant agent turned out to be more ecologically compatible since it did not release harmful environmental compounds. Fil: Adans, Ysla França. Instituto Federal Da Bahia; Brasil Fil: Martins, André Rosa. Instituto Federal Da Bahia; Brasil Fil: Coelho, Rodrigo Estevam. Instituto Federal Da Bahia; Brasil Fil: Das Virgens, Cesário Francisco. Universidade Do Estado Da Bahia; Brasil Fil: Ballarini, Adriana Daniela. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera". Universidad Nacional del Litoral. Instituto de Investigaciones en Catálisis y Petroquímica "Ing. José Miguel Parera"; Argentina Fil: Carvalho, Luciene Santos. Instituto Federal Da Bahia; Brasil |
| Databáze: | OpenAIRE |
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