Alumina Extraction From Low-Grade Diasporic Bauxite By Pyro-Hydro Metallurgical Process
| Autor: | Ali Osman Aydin, Asena Pehlivan, Ahmet Alp |
|---|---|
| Jazyk: | turečtina |
| Rok vydání: | 2012 |
| Předmět: |
Materials science
Metallurgy Extraction (chemistry) Fakir diasporitik boksit cevheri CaO ilavesi Soda ilavesi Kalsinasyon Liç Alumina General Engineering Mühendislik Low grade diasporic bauxite CaO additive Soda additive Calcination Leaching Alumina extraction lcsh:A Fakir diasporitik boksit cevheri CaO ilavesi Soda ilavesi Kalsinasyon Liç Alumina engineering.material Bauxite Engineering Scientific method engineering lcsh:General Works |
| Zdroj: | Volume: 16, Issue: 2 92-98 Sakarya University Journal of Science Sakarya University Journal of Science, Vol 16, Iss 2 (2000) |
| ISSN: | 2147-835X |
| Popis: | Diasporic bauxite samples obtained from Isparta-Yalvaç region were crashed and sieved with a 100 mm sieve. After determining the composition by chemical analysis, grain size distribution of the samples were determined. Then the characterization of the sample was recorded by static and dynamic thermal analysis and XRD studies. Bauxite samples added CaO and Na2CO3 were calcined at 900 ºC. Alumina extraction studies were performed for 20, 40, 60, 80 minutes of calcination time and 15, 30, 45, 60 minutes of leach time and 25, 50, 75, 100 ºC of leach temperature. It was found that the maximum leach yield (85.04 %) was obtained at 60 minutes of calcination time and 15 minutes of leach time and 50 ºC of leach temperature. These results demonstrated that the optimum conditions for dissolving to this type of iron-rich low grade diasporic bauxite minerals at low-temperature and alkaline concentration were determined. |
| Databáze: | OpenAIRE |
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