Converter treatment

C - Chemistry – Metallurgy – 09 – K

Patent

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149/11

C09K 13/04 (2006.01)

Patent

CA 1067001

Abstract of the Disclosure A process for substantially removing the magnetite layer from the linings of converters used for smelting nickel and copper furnace mattes. A mixture of molten furnace matte and a silicon-containing substance, preferably ferrosilicon, are reacted with the magnetite-containing layer at substantially lower temperatures for shorter time periods than used in prior practice. Intermittent agitation of the molten, silicon-containing charge by the passage of a gas or by the use of a rocking motion improves the effectiveness of this magnetite removal process.

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