Production of Boric Acid from Microwave-Dehydrated Ulexite Waste by Oxalic Acid Solution Leaching
Abstract
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Abstract
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An investigation was made of the production of boric acid from microwave-dehydrated ulexite waste by leaching with oxalic acid solution. An ulexite waste sample was dehydrated in a domestic microwave oven, and then dissolved in oxalic solution at temperatures of between 25 and 70°C. The experimental data from this dissolution process were analyzed using homogeneous and heterogeneous kinetic models, and the leaching kinetics of the microwave-dehydrated ulexite waste were defined. The activation energy of the oxalic acid solution of the microwave-dehydrated ulexite waste was also calculated.
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Keywords
Boric acid,microwave-dehydrated ulexite waste,dissolution,leaching kinetics
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