Importance

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Abstract

A furnace for conducting a high temperature process under oxidising conditions comprises an outer shell made from a metal, one or more cooling channels formed on or joined to the outer shell and a furnace lining. The furnace lining comprises a backing lining comprising a relatively high thermal conductivity layer positioned adjacent to an inner wall of the outer shell and a working lining positioned inwardly of the layer of relatively high thermal conductivity. The backing lining can comprise a graphite lining or a graphite-containing lining. The rate of heat transfer through the backing lining is sufficiently high to form a protective freeze on the backing lining in the event that the working lining wears away.

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First Claim