Iron reduction process and equipment
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United States of America Patent
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Nov 22, 2016
Grant Date -
Feb 12, 2015
app pub date -
Feb 7, 2013
filing date -
Mar 8, 2012
priority date (Note) -
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Abstract
Iron production furnace equipment includes a melting reactor into which iron oxide-containing raw material and slag formers are added. A melter arrangement melts the iron oxide-containing raw material and transforms the melted raw material into liquid slag. A smelting reduction reactor is connected to the melting reactor by a slag transfer arrangement. The smelting reduction reactor includes a heater arrangement for heating the slag, a port for supplying a reductant for reducing the iron oxide in the slag into a liquid iron melt and produces a combustible gas mixture including at least one of CO and H2. A gas connection is provided between the smelting reduction reactor and the melter arrangement. The melter arrangement in turn comprises a combuster combusting the gas mixture for purpose of melting the raw material.
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