Brief description of the products of sulfides plumbiferous by melting in a torch of a gas containing oxygen and carbon in the presence of a reducing agent

摘要

The process for the treatment of sulphur-containing products plumbiferous consists in that it performs a melting a mixture of sulphur-containing products plumbiferous, and of dust by recycling in a torch of a gas containing oxygen by the introduction into the torch of a carbonaceous reducing agent, which causes the metals contained in the mixture, in the form of their oxides, in the molten material is dispersed with the evolution of gas containing dust recycling. It is then bubbled through the molten material, of a gas to be passive screw - to - screw of the molten material in order to reduce, within the molten material, the oxides of metals by filtration through the layer of solid carbonaceous reducing agent, an operation which supplies the lead and a slag which is depleted in lead, and it separates the lead of the slag.