US PATENT SUBCLASS 75 / 480
.~.~.~.~.~.~ Reducible Iron(Fe) compound and solid reductant fed through same end of rotary kiln

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}
474  DF  .~.~.~.~ Reduction in rotary kiln {3}
477  DF  .~.~.~.~.~ Introducing solid reductant into rotary kiln {3}
480.~.~.~.~.~.~ Reducible Iron(Fe) compound and solid reductant fed through same end of rotary kiln {1}
481  DF  .~.~.~.~.~.~.~> Mixed prior to charging

DEFINITION

Classification: 75/480

Reducible Iron (Fe) compound and solid reductant fed through same end of rotary kiln:

(under subclass 477) Process wherein solid reductant and reducible Iron (Fe) compound are fed into the rotary kiln from the same end of the kiln.