Chemistry of inorganic compounds – Treating mixture to obtain metal containing compound – Iron group metal
Reexamination Certificate
2002-10-23
2010-12-21
Ward, Jessica L (Department: 1793)
Chemistry of inorganic compounds
Treating mixture to obtain metal containing compound
Iron group metal
C423S138000, C423S150300, C423S150500, C075S392000, C075S443000, C075S444000
Reexamination Certificate
active
07854909
ABSTRACT:
A process for treating a finely particulate, in particular metal-containing, charge material: The charge material and a treatment gas, in particular a reduction gas, are introduced into a fluidized bed chamber of a fluidized bed reactor to form a fluidized bed. After at least partial reaction in the fluidized bed, the treatment gas is discharged from the fluidized bed and, outside the fluidized bed, is at least partially reprocessed, preferably oxidized, by an exothermic, chemical reaction with a reactant, preferably with a gaseous and/or liquid oxidizing agent. The thermal energy of this reaction is at least partially introduced into the fluidized bed chamber, in particular into the fluidized bed, or being discharged therefrom to affect the temperature of the particulate material above the bed. Also an apparatus for operating such a fluidized bed includes the chamber, lines into and out of the chamber for gas and material and a cyclone at the chamber for the material.
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Japanese Office Action transmitted Aug. 24, 2010 in corresponding Japanese Patent Application No. 2003-542662, with English translation of relevant portions thereof.
Zirngast Johann
Zschetzsche Albert
Ostrolenk Faber LLP
Patel Devang R
POSCO
Ward Jessica L
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