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1666303 
Journal Article 
Volatilization kinetics of zinc and lead in Zn-Pb-bearing dust pellets containing carbon 
Wang, DY; Shen, XL; Gu, DR; Sha, GY 
2000 
297-311 
WOS:000177472600027 
The study of the volatilization kinetics of zinc and lead in pellets made of zinc-lead-bearing dust mixed with coal powder, in a nitrogen atmosphere and at a temperature range between 1100 degreesC and 1300 degreesC, shows that the reduction temperature has a significant effect on the volatilization rates of zinc and lead, and that both the particle size of the coal powder and the extra carbon content has no effect on the volatilization rates. The obtained activation energies for the volatilization of zinc and lead are 79.42kJ/mol and 88.74kJ/mol respectively. The volatilization rate of zinc is controlled by the reaction between the zinc oxide and carbon monoxide while that of lead is controlled by the lead evaporation reaction, and the diffusion of gaseous lead through the gas boundary layer covering the surface of the reduced liquid lead.