Petroleum Coke Particle Size Effects on the Treatment of EAF Dust through Microwave Heating

Xiang Sun, Jiann-Yang Hwang, Xiaodi Huang, Bowen Li

Department of Materials Science and Engineering Michigan Technological University, MI 49931.

DOI: 10.4236/jmmce.2009.84022                

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.

Keywords

EAF dust, microwave processing, zinc recovery, metal extraction

Conflicts of Interest

The authors declare no conflicts of interest.

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