PDF TwoStage Continuous Process for the Extraction of Silica from Rice ...
Attrition Ball Mill An attrition pulverizer (Korea powder system Co., Ltd., Incheon, Korea) previously developed for lignocellulosic pretreatment [22] was used to prepare micronsized rice husk particles. Onethird of the inner space was filled with rice husk, while another third was filled with grinding steel balls (10 mm in diameter).