A New and Direct Process for the Reduction of Lead Sulfide.

摘要

The main environmental problem associated with lead smelting is the emission of sulfur dioxide which above a certain concentration is hazardous to human health and plant life. The direct reduction of lead sufide concentrates by iron was investigated. An oxygen bearing flux was shown to be a necessary ingredient for complete reduction of the concentrate. The effects of time and temperature on lead recovery were studied. Only a trace amount of sulfur dioxide is evolved during reduction,which is in agreement with thermochemical calculation.