1. Energy Engineering, Division of Energy Science, Department
of Engineering Sciences and Mathematics, Luleå University of Technology, SE- 971 87 Luleå,
Sweden
2. R&D Mineral Processing, LKAB, SE-983 81 Malmberget, Sweden
3. R&D Mineral Processing, LKAB, SE-981 86 Kiruna, Sweden
4. Energy Technology and Thermal Process Chemistry, Umeå University, SE-901 87 Umeå,
Sweden