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Alpha-Alumina Extraction from AI-Ga’ara Bauxite | ||
| Iraqi Journal of Chemical and Petroleum Engineering | ||
| Article 1, Volume 8, Issue 2, 2007, Pages 35-38 | ||
| Authors | ||
| Marwan G. Madhhoor; Ala Ibrahim; Abdul-Hlalim A. K. Mohammed | ||
| Abstract | ||
| The bauxite produced from Al-Ga ‘ara area in Al-Enbar containing 50.4 W percentages A1 was used for a a! urn/na production. For a-alumina product ion bauxite was mixed with calcium carbonate in a ratio 1.3 and the mixture was burned at temperature range 1150- cooled to 500°C; crushed and ground. The powder produced treated then with 6% sodium carbonate solution using different temperature (60-100°C) for fifteen minutes. After filtration, the produced sodium alurninate solution was reacted with 2% of calcium hydroxide at 98 for thirty minutes. The filtrate was carbonated with pur(f led CO gas at 70°C for different times (30- and different flow rates (20-80 cm’/min). Alumina was precipitated as hydrate, then washed with water, dried at 110°C, and calcined at 1200°C. The produced a AL was ident?fied by X-ray diffraction. | ||
| Keywords | ||
| Alumina extraction; bauxite | ||
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