TY - JOUR T1 - Dissolution behavior and kinetic investigation of Mg+2 in solution in the reaction of colemanite ore with propionic acid AU - Uğur, Mücahit AU - Durmaz, Merve AU - Kocakerim, Mehmet Muhtar AU - Yartaşı, Ahmet PY - 2024 DA - December Y2 - 2024 DO - 10.32571/ijct.1384351 JF - International Journal of Chemistry and Technology JO - Int. J. Chem. Technol. PB - Rabia ACEMİOĞLU WT - DergiPark SN - 2602-277X SP - 143 EP - 152 VL - 8 IS - 2 LA - en AB - Colemanite ore, which is one of the most significant commercially substantial boron minerals, is used to produce various boron compounds in the industry with its rich B_2 O_3 content. Calcium propionate, used in the food industry, is formed as a by-product in its production. In the production of boric acid from colemanite, the use of different solvent reagents is at the forefront to prevent the formation of Mg^(2+), Ca^(2+) and SO_4^(2-) impurities and borogypsum by-products. For this reason, in our study, the dissolution kinetics of colemanite ore in propionic acid solution in an aqueous medium were carried out in a batch reactor system. As dissolution parameters; reaction temperature, solid/liquid ratio, propionic acid (CH_3 CH_2 COOH) concentration, stirring speed and particle size were selected as. According to the experimental results, the amount of Mg^(2+) passed to the solution; was observed that the solution increased with the increase in reaction temperature with the decrease in solid-liquid ratio, grain size, and acid concentration. In addition, it was determined that the mixing speed was not effective. Obtained experimental data were analyzed according to homogeneous and heterogeneous reaction models using the Statistica 10.0 package program. It was determined that the dissolution kinetic of Mg^(2+) passing to solution conformed to the "Avrami model" and activation energy (E) was calculated as 8.18 kJ⁄mol. 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