Magnezitin kalsinasyon kinetiği ve saf MgO üretimi

Bu çalışmada, % 97.35 $MgCO_3$ ihtiva eden mağnezit minerali 500 - 900 °C sıcaklık aralığında kalsine edildi. Kalsinasyon reaksiyonunun ikinci mertebeden olduğu bulundu ve bu reaksiyona ait aktivasyon enerjisi 173.1 kj/mol olarak hesaplandı. Kalsine cevherin asetik asit çözeltilerinde çözündürülmesiyle elde edilen Mg$(CH_3COO)_2$'a NaOH çözeltisi ilave edildi ve Mg$(OH)_2$ üretildi. Mg$(OH)_2$'in 700 °C'de kalsine edilmesi ile saf MgO elde edildi.

Calcination kinetics of magnesite and production of pure MgO

In this study 97.35 % $MgCO_3$ containing magnesite ores was calcinated in the range of 500 -900 °C. It has been found that, the calcination reactions of magnesite is controlled by second order reaction. The activation energy for this reaction was calculated as 173.1.kj/mol. The Mg$(OH)_2$ was produced by adding of NaOH solutions to obtained Mg$(CH_3COO)_2$' mixture which was obtained by dissolution of calcinated ore with acetic acid solutions. Pure MgO was produced by calcination of Mg$(OH)_2$ at 700 °C.

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