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Class Information
Number: 423/148
Name: Chemistry of inorganic compounds > Treating mixture to obtain metal containing compound > Iron group metal (fe, co, or ni) > Utilizing fluidized bed
Description: Processes in which solids are suspended in upward flowing gas or vapor, the upward force of the fluid on the solids is countered by gravity resulting in the formation of a zone in which the particles are compacted into a dense phase; see Glossary.

Patents under this class:
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Patent Number Title Of Patent Date Issued
8460624 Process and plant for producing metal oxide from metal salts Jun. 11, 2013
8313715 Process and plant for producing metal oxide from metal salts Nov. 20, 2012
8038766 Direct reduction process using a single fluidised bed Oct. 18, 2011
7854909 Method and device for treating a fine-particled feedstock especially containing metal Dec. 21, 2010
7597873 Process and apparatus for the recovery of metal oxide particles Oct. 6, 2009
7588741 Cyclical vacuum chlorination processes, including lithium extraction Sep. 15, 2009
7571814 Method for separating metal values by exposing to microwave/millimeter wave energy Aug. 11, 2009
6926752 Method for the stabilization of a fluidized bed in a roasting furnace Aug. 9, 2005
6770255 Process for chlorine recovery Aug. 3, 2004
6746653 Process for recovering catalyst transition metals from salt-containing reaction mixtures Jun. 8, 2004
6627313 Spindle-shaped magnetic metal particles containing iron as main component and processes for producing the same Sep. 30, 2003
6627171 Method for producing iron carbide from granulated sponge iron Sep. 30, 2003
6599374 Method for producing a mixture of iron carbide and granular, directly reduced iron Jul. 29, 2003
6544673 Spindle-shaped magnetic metal particles containing iron as main component and processes for producing the same Apr. 8, 2003
6511646 Treatment of iron chloride from chlorination dust Jan. 28, 2003
6488901 Method of adjusting a circulating fluidized bed and use of the method Dec. 3, 2002
6379426 Fluidized bed reduction of laterite fines with reducing gases generated in situ Apr. 30, 2002
6277171 Method of reducing the iron content of steel slag Aug. 21, 2001
6056935 Iron sulfide and process for producing the same May. 2, 2000
5972302 Method for the microwave induced oxidation of pyritic ores without the production of sulphur dioxide Oct. 26, 1999
5911967 Process and apparatus for production of ferric oxide from iron chloride solutions Jun. 15, 1999
5733357 Process for converting iron oxide to iron carbide employing internally generated carbon oxide as the carbiding agent Mar. 31, 1998
5667556 Method of reprocessing zinc- and iron oxide-containing residual material Sep. 16, 1997
5560762 Process for the heat treatment of fine-grained iron ore and for the conversion of the heat treated iron ore to metallic iron Oct. 1, 1996
5527379 Process for a direct reduction of iron oxide containing materials to form Fe.sub.3 C Jun. 18, 1996
5490976 Continuous ore reaction process by fluidizing Feb. 13, 1996
5320815 Fluidized bed process Jun. 14, 1994
5316746 High purity iron oxide and method for production hereof May. 31, 1994
5277795 Process and apparatus for recovering heavy metal from carbonaceous material Jan. 11, 1994
5147619 Nickel recovery using a fluidized bed process Sep. 15, 1992
5118479 Process for using fluidized bed reactor Jun. 2, 1992
4994255 Oxidation of ferrous chloride directly to chlorine in a fluid bed reactor Feb. 19, 1991
4789580 Process of reducing higher metal oxides to lower metal oxides Dec. 6, 1988
4624843 Recovery of chlorine Nov. 25, 1986
4619814 Process for the recovery of non-ferrous metals from sulphide ores and concentrates Oct. 28, 1986
RE32247 Process for the direct production of steel Sep. 16, 1986
4576636 Process for beneficiating oxidic ores Mar. 18, 1986
4398945 Process for producing a ferronickel alloy from nickel bearing laterites Aug. 16, 1983
4396423 Process for recovering iron and zinc from steel making dusts Aug. 2, 1983
4344792 Reduction smelting process Aug. 17, 1982
4304759 Process for obtaining metal oxide and SO.sub.2 -containing gases essentially free of SO.sub.3 and H.sub.2 SO.sub.4 from ferrous sulphate containing salt Dec. 8, 1981
4298460 Process for processing sulfur-containing heavy oil Nov. 3, 1981
4279640 Process for upgrading iron-containing materials Jul. 21, 1981
4259298 Recovery of chlorine values from iron chloride by-product in chlorination of aluminous materials Mar. 31, 1981
4244929 Recovery of chlorine values Jan. 13, 1981
4224140 Process for producing cracked distillate and hydrogen from heavy oil Sep. 23, 1980
4220518 Method for preventing coking in fluidized bed reactor for cracking heavy hydrocarbon oil Sep. 2, 1980
4214901 Hydrometallurgical refining of nickeliferous sulfides Jul. 29, 1980
4211755 Process for beneficiating titaniferous ores Jul. 8, 1980
4179489 Chlorination of iron-containing materials Dec. 18, 1979

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