Frontiers | The Effect of Ball Milling Time on the Isolation of Lignin ...
Specifically, 10 g of wood sawdust particle was loaded in a 100ml ZrO 2 bowl with 25 ZrO 2 balls (ΦA = 1 cm). Then the particle was milled by the planetary ball milling under a rotation speed of 600 rpm for a total effective time of 3, 5, and 7 h. During milling process, a milling time of 10 min and a pause time of 15 min were carried out for ...