| Patent Number |
Title Of Patent |
Date Issued |
| 4642133 |
Process for chlorinating volatilization of metals which are present in oxidic iron ores or conce |
February 10, 1987 |
| A process and apparatus is disclosed for the chlorinating volatilization of impurity metals detrimental to the production of iron from a raw material which contains the oxides of the impurity metals and iron or which forms them in an oxidizing atmosphere, in which the pulverous raw mater |
| 4478394 |
Apparatus for the separation of lead from a sulfidic concentrate |
October 23, 1984 |
| Lead in separated from a sulfidic concentrate by feeding a finely-divided concentrate, a silicate-high slagging agent, and air or oxygen-enriched air into the upper section of a suspension reaction shaft of a flash-smelting furnace in order to form a suspension and to oxidize the lea |
| 4391632 |
Process for the separation of lead from a sulfidic concentrate |
July 5, 1983 |
| Lead in separated from a sulfidic concentrate by feeding a finely-divided concentrate, a silicate-high slagging agent, and air or oxygen-enriched air into the upper section of a suspension reaction shaft of a flash-smelting furnace in order to form a suspension and to oxidize the lea |
| 4259106 |
Process for the roasting and chlorination of finely-divided iron ores and concentrates containin |
March 31, 1981 |
| Finely-divided iron ores and concentrates which contain non-ferrous metals are roasted and chlorinated in order to vaporize the non-ferrous metals as metal chloride compounds, whereby the finely-divided raw material is oxidized at an elevated temperature to produce an oxide melt, with wh |
