US PATENT SUBCLASS 75 / 486
.~.~.~.~ Heating reduction zone by heat conducted through walls of zone

Current as of: June, 1999
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75 /   HD   SPECIALIZED METALLURGICAL PROCESSES, COMPOSITIONS FOR USE THEREIN, CONSOLIDATED METAL POWDER COMPOSITIONS, AND LOOSE METAL PARTICULATE MIXTURES

330  DF  PROCESSES {9}
392  DF  .~ Producing or treating free metal {10}
414  DF  .~.~ At 300 degrees C or greater (e.g., pyrometallurgy, etc.) {7}
433  DF  .~.~.~ Iron(Fe) {18}
486.~.~.~.~ Heating reduction zone by heat conducted through walls of zone {1}
487  DF  .~.~.~.~.~> Shaft furnace

DEFINITION

Classification: 75/486

Heating reduction zone by heat conducted through walls of zone:

(under subclass 433) Process wherein a reducible Iron (Fe) compound is reduced in a zone in which at least part of the heat required for the reduction is supplied by conduction through the walls of the zone (e.g., external heating of apparatus, etc.).