| 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} |
| 443 | DF | .~.~.~.~ Reducing in gaseous suspension {4} |
| 444 | | .~.~.~.~.~ Fluidized bed {4} |
| 445 | DF | .~.~.~.~.~.~> With melting of Iron(Fe) {1} |
| 447 | DF | .~.~.~.~.~.~> With solid in fluidized bed in addition to reducible Iron(Fe) compound {1} |
| 450 | DF | .~.~.~.~.~.~> Using plural fluidized bed furnaces |
| 451 | DF | .~.~.~.~.~.~> Using plural fluidized bed zones within a furnace |