PROCESS FOR THE TREATMENT OF SULPHIDE PRODUCTS LEADED BY FUSION IN A TORCH OF A GAS CONTAINING OXYGEN AND IN THE PRESENCE OF A CARBON REDUCER

摘要

P The process for the treatment of lead sulphide products consists in carrying out a fusion of a mixture of lead sulphide products, flux and recycling dust in a torch of a gas containing oxygen by l introduction into the torch of a ground carbon reducer, which makes the metals contained in the mixture, in the form of their oxides, pass through the dispersed molten material with release of gas containing recycling dust. A bubbling gas is then bubbled through the molten material with respect to the molten material in order to reduce, within the molten material, the metal oxides by their filtration through the layer of the solid carbonaceous reducer, an operation which supplies lead and a lead-depleted slag, and the lead is separated from the slag. /P