Combination of Conventional Ball Mill and Stirred Mill to Obtain Ultra-Fine Talc

Authors : Ömer Güleç, Öner Yusuf Toraman, Metin Uçurum

Pages : 683-693

Doi:10.21605/cukurovaumfd.1377725

View : 63 | Download : 149

Publication Date : 2023-10-18

Article Type : Research Paper

Abstract :In this study, it was investigated that talc ore could ground to very fine sizes using a combination of conventional ball mill and vertical stirred mill. Firstly, the conventional ball mill parameters such as mill speed (% of critical speed), material filling ratio (Jb), ball filling ratio (fc), ball size distribution (10-20-30-40 mm, %), grinding aid ratio (% of powder) and grinding time (min.) were optimized using classic experimental design. As a result of the optimization, fine talc product was obtained with d90=93.52 µm particle size. In the second stage, the ball mill product was re-milled using a stirred mill. As a result of study, a final ultra-fine talc powder was obtained after 60 minutes grinding time with d50=1.85 µm particle size and 14058 cm2/g total surface area. It has been seen that the conventional ball mill+stirred mill combination effective a process to obtain talc powder that suitable for industrial use.
Keywords : Talk, Konvansiyonel bilyeli değirmen, Karıştırmalı değirmen, Çok ince ürün