Process of producing a mixture of iron ore and low-temperature coke
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United States of America Patent
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Issued Date -
Sep 12, 2002
app pub date -
Jan 4, 2002
filing date -
Jan 12, 2001
priority date (Note) -
Abandoned
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Abstract
Granular coal and preheated granular iron ore are charged into a low-temperature carbonization reactor, in which temperatures in the range from 800 to 1050 .degree. C. are produced by supplying gas containing oxygen and by partial oxidation of the components of the coal. In the low-temperature carbonization reactor, the granular solids are maintained in a turbulent movement. From the upper region of the reactor, hot exhaust gas is supplied to a solids separator. The granular iron ore is preheated by means of the hot exhaust gas and hot, granular mixture of iron ore and low-temperature coke is withdrawn as product from the reactor and/or from the separator. The low-temperature carbonization reactor may be designed as fluidized-bed reactor or as pneumatic conveyor section. The granular mixture of iron ore and low-temperature coke is suitable e.g. for a melt reduction process.
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