Salih AYDOĞAN, Seda KARAYÜNLÜ BOZBAŞ, Deniz BİNGÖL

(NH4)2CO3 kullanılarak sölestinin yaş mekanokimyasal işlenmesi

Bu çalışmada, yaş mekanokimyasal işlem bir planetary bilyalı değirmende sölestin (SrSO4)-(NH4)2CO3-H2O karışımından SrCO3 ve (NH4)2SO4 elde etmek için geleneksel (tekli) yöntemle uygulandı. X-ışını kırınımı, Fourier dönüşümlü kızılötesi spektroskopi, taramalı elektron mikroskobu ve kimyasal analiz yaş öğütme sırasında oluşan ürünleri analiz etmek için kullanıldı. Hidrometalurjik işlem, bir planeter değirmende öğütme süresi, bilya ile öğütülmüş malzeme kütle oranı, (NH4)2CO3 ile SrSO4 mol oranı ve değirmen dönme hızını incelemek için gerçekleştirildi. Optimum koşullar altında, SrCO3’ın %100’e yaklaşan bir dönüşümü elde edildi.

Wet mechanochemical processing of celestine using (NH4)2CO3

In this study, traditional (univariate) method of processing to the wet mechanochemical treatment were applied toobtain both SrCO3 and (NH4)2SO4 from celestite (SrSO4)-(NH4)2CO3-H2O mixtures in a planetary ball mill. X-raydiffraction, Fourier transform infrared spectroscopy, scanning electron microscopy, and chemical analysis were usedto analyze products formed during wet milling. A hydrometallurgical process was carried out to examine milling time,ball to grinding material mass ratio, (NH4)2CO3 to SrSO4 mole ratio and rotational speed of the mill in a planetary mill.Under optimum conditions, a conversion approaching 100% of SrCO3 was obtained.

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