Refining method of molten iron and reduction smelting method for producing molten iron

Refining method of molten iron and reduction smelting method for producing molten iron

This invention provides a method of smelting a low carbon molten iron comprising the steps of executing desulfurization treatment by supplying a desulfurizer to a molten iron and stirring the molten iron; heating or carburizing the molten iron before or after the desulfurization treatment; and execu...

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Hauptverfasser: SAWADA, TERUTOSHI, IWASAKI, KATSUHIRO, KAWAKAMI, MASAHIRO, SEKIGUCHI, TAKESHI, WATANABE, MASAYUKI
Format: Patent
Sprache:eng
Schlagworte:
CHEMISTRY
MANUFACTURE OF IRON OR STEEL
METALLURGY
METALLURGY OF IRON
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creator SAWADA, TERUTOSHI
IWASAKI, KATSUHIRO
KAWAKAMI, MASAHIRO
SEKIGUCHI, TAKESHI
WATANABE, MASAYUKI
description This invention provides a method of smelting a low carbon molten iron comprising the steps of executing desulfurization treatment by supplying a desulfurizer to a molten iron and stirring the molten iron; heating or carburizing the molten iron before or after the desulfurization treatment; and executing decarburization treatment of the molten iron after the desulfurization treatment in a decarbonization furnace. The molten iron is produced by charging an ore reduced to metallization into a melting/reducing furnace. Dust coke, oil coke and waste plastics can be used as the carbon material. A sintered ore having a small particle size can be used as an iron source.
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subjects CHEMISTRY
MANUFACTURE OF IRON OR STEEL
METALLURGY
METALLURGY OF IRON
title Refining method of molten iron and reduction smelting method for producing molten iron
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