Sollac (societe Anonyme)

Unimetal

Henri Gaye

Jean-Luc Roth

Yann De Lassat De Pressigny

Yves Zbaczyniak

Jean Alex Michard

Process for adjusting the composition of a liquid metal such as steel,

Both a method and apparatus for producing molten steel are provided wherein ferrous materials rich in carbonaceous materials are fused in a first vessel of a single electric furnace having separate first and second vessels. The carbonized molten metal thus obtained is then pretreated in a separate pretreatment facility to remove contaminants and the pretreated molten metal is then decarburized in the second vessel of the electric furnace. The decarburization of the pretreated metal in the second vessel of the furnace avoids reintroducing contaminants into the steel by avoiding contact between the pretreated metal and the slag produced when the initial carbonaceous materials are fused. Preferably, the first and second vessels are two vessels of a single electric furnace having a single electric power source.

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Metz, France

Henri Gaye