Niğde Ömer Halisdemir Üniversitesi Mühendislik Bilimleri Dergisi

Yazarlar: Diler KATIRCIOĞLU BAYEL

Konular:Mühendislik, Ortak Disiplinler

DOI:10.28948/ngumuh.341827

Anahtar Kelimeler:Stirred media mill,Wet grinding,Talc,PH,Suspension stability

Özet:    Grinding behaviour of submicron and nanoparticles in stirred media mill (attritor) and the minimum achievable particle size are pretty much influenced by the suspension stability. In the present work, suspension stability of talc in a wet milling process was investigated by measuring pH. It was found that after a certain time in an attritor mill, there is no more size reduction and the average product particle size (d50) increases. One of the main reasons is that the production of submicron particles causes more particle–particle interactions and consequently pH of the suspension decreases with grinding time. The effect of pH was investigated by the experiments carried out at five pH values (5- 6.5- 8- 9.5 and 11). It was determined that the suspension stability was found to be affected by grinding time and hence, the size reduction was affected by pH of the suspension.

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