Dissolution behavior and kinetic investigation of Mg+2 in solution in the reaction of colemanite ore with propionic acid

Year 2024, Volume: 8 Issue: 2, 143 - 152

Mücahit Uğur , Merve Durmaz , Mehmet Muhtar Kocakerim , Ahmet Yartaşı

https://doi.org/10.32571/ijct.1384351

Abstract

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.

Keywords

Colemanite, propionic acid, dissolution kinetics, heterogeneous reaction

Supporting Institution

Çankırı Karatekin University

Project Number

MF210621D06

Thanks

This research was carried out with the support of the Scientific Research Project (MF210621D06) funded by Çankırı Karatekin University. Authors thanks Çankırı Karatekin University, Scientific Research Project Management Unit (ÇAKÜ-BAP). Determination of the concentration of the elements was made using Shimadzu AA-7000 Atomic Absorption Spectrophotometer (AAS) device at Çankırı Karatekin University.

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