... technology,specifically fluidization engineering of ultrafine and superfine. The circulating systems includingsubmicron (superfine and ultrafine) powders are fluidized in a new circulating fluidized bed with ... A. Abdelghany hold a Ph.D. in Chemical Engineering from Gunma University, Japan in 2004 in the field of fluidization engineering. He is interested in research focusing on particle technology,specifically ... gas treating. E-mail address: eabdelghani@yahoo.com; dr.eng.emad@gmail.com Yehia H. Magdy Prof. in chemical engineering in El-Minia University –Egypt, 2012, in the present working in chemical...