Abstract
Turkey has approximately 60% of the boron ores of the world. Boron in general is found as calcium or sodium borates or both in nature. Ulexite, which is one of the most widely available boron minerals, has the chemical formula of Na2O·2CaO·5B2O3·16H2O and triclinic crystal structure. In addition, it is generally found to contain some clay minerals, which cause trouble in filtration processes. The dissolution characteristics of ulexite in water saturated with SO2 was investigated, and a discussion about whether this new process can provide an alternative in terms of the products obtained was made in the current study. The parameters selected for the study are particle size, reaction temperature, solid-to-liquid ratio, and stirring speed. The ulexite dissolution rate was found to increase with decreasing particle size and solid-to-liquid ratio and with increasing reaction temperature, while it was not affected by stirring speed. The activation energy of the dissolution process was 49.87 kJ·mol-1. A model eq...
Published Version
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