TITLE:
Petroleum Coke Particle Size Effects on the Treatment of EAF Dust through Microwave Heating
AUTHORS:
Xiang Sun, Jiann-Yang Hwang, Xiaodi Huang, Bowen Li
KEYWORDS:
EAF dust, microwave processing, zinc recovery, metal extraction
JOURNAL NAME:
Journal of Minerals and Materials Characterization and Engineering,
Vol.8 No.4,
April
20,
2009
ABSTRACT: EAF dusts were mixed with petroleum coke and irradiated together under microwave for a
pyrometallurgical treatment. It was found that particle size of the reducing agent played an
important role in affecting the reduction degree. Both zinc removal and metallization degree
increased with the decreasing of the coke particle size. By changing both microwave time and
carbon addition, optimal zinc removal at 99.23 % and metallization at 100 % can be achieved
with 15 minutes microwave irradiation and 20 wt% carbon addition.