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Taguchi Approach and ANOVA in Optimization of the Dissolution of Colemanite in CO2 and SO2- Water Systems

Author(s):

Zafer Ekinci, Esref Kurdal and Meltem Kizilca Coruh *   Pages 1 - 10 ( 10 )

Abstract:


A Taguchi approach was used to determine the optimum conditions of dissolution of colemanite, which is one of the most important underground resources in Turkey, in CO2 and SO2- water systems with Minitab software. Analysis of Variance (ANOVA) was performed to determine the effects of statistically important parameters for the process. An L25 orthogonal array consisting of six factors in five levels was employed to assess the effects of the controllable parameters such as 15, 25, 35, 45 and 55°C for reaction temperature, 0.25, 0.167, 0.125, 0.1, and 0.083 g.mL-1 f or solid-to liquid ratio, 2, 4, 6, 8 and 10 mL.s-1 for SO2/CO2 gas flow rate, -4.000 + 2.000, -2.000 + 1.000, -1.000 + 0.707, -0.707 + 0.354 and -0.354 + 0.210 mm for particle size, 150, 300, 450, 600 and 750 rpm for stirring speed and 2.5, 5, 10, 15 and 20 min reaction time. Leaching yields were 96.8% under the optimum conditions determined to be 45°C, 0.083 g.mL-1, 2/2 mL.s-1, -0.354 + 0.210 mm, 750 rpm and 20 min.

Keywords:

Colemanite, Minitab software, Orthogonal array, ANOVA, Taguchi method

Affiliation:

Department of Chemical Engineering, Ataturk University, Erzurum, 25240, Department of Chemical Engineering, Ataturk University, Erzurum, 25240, Department of Chemical Engineering, Ataturk University, Erzurum, 25240



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