CARBOTHERMAL REDUCTION METHOD AND DEVICE FOR CARRYING OUT SAID METHOD

摘要

The invention relates to a carbothermal reduction method, wherein a product is obtained from a first feed material and carbon by way of carbothermal reduction in a crucible (30), a reactant being added (10) to the material mixture (36) contained in the crucible (30) at least at times during the carbothermal reduction, said reactant reacting with at least one impurity, that is contained in the first feed material (36) or the carbon (36), in such a manner that the impurity is converted to a gaseous compound (44). The invention also relates to devices for carrying out said method.