GB1135753A – Method for carrying out gas-solids reactions
– Google Patents
GB1135753A – Method for carrying out gas-solids reactions
– Google Patents
Method for carrying out gas-solids reactions
Info
Publication number
GB1135753A
GB1135753A
GB5130165A
GB5130165A
GB1135753A
GB 1135753 A
GB1135753 A
GB 1135753A
GB 5130165 A
GB5130165 A
GB 5130165A
GB 5130165 A
GB5130165 A
GB 5130165A
GB 1135753 A
GB1135753 A
GB 1135753A
Authority
GB
United Kingdom
Prior art keywords
bed
beds
ore
occur
composition
Prior art date
1964-12-07
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5130165A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pullman Inc
Original Assignee
Pullman Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
1964-12-07
Filing date
1965-12-02
Publication date
1968-12-04
1965-12-02
Application filed by Pullman Inc
filed
Critical
Pullman Inc
1968-12-04
Publication of GB1135753A
publication
Critical
patent/GB1135753A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
B01J8/00—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes
B01J8/18—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles
B01J8/24—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to “fluidised-bed” technique
B01J8/26—Chemical or physical processes in general, conducted in the presence of fluids and solid particles; Apparatus for such processes with fluidised particles according to “fluidised-bed” technique with two or more fluidised beds, e.g. reactor and regeneration installations
C—CHEMISTRY; METALLURGY
C21—METALLURGY OF IRON
C21B—MANUFACTURE OF IRON OR STEEL
C21B13/00—Making spongy iron or liquid steel, by direct processes
C21B13/0033—In fluidised bed furnaces or apparatus containing a dispersion of the material
C—CHEMISTRY; METALLURGY
C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
C22B1/00—Preliminary treatment of ores or scrap
C22B1/02—Roasting processes
C22B1/10—Roasting processes in fluidised form
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
Y02P10/00—Technologies related to metal processing
Y02P10/10—Reduction of greenhouse gas [GHG] emissions
Y02P10/134—Reduction of greenhouse gas [GHG] emissions by avoiding CO2, e.g. using hydrogen
Abstract
1,135,753. Fluidized bed reductions. PULLMAN Inc. 2 Dec., 1965 [7 Dec., 1964], No. 51301/65. Heading C1A. [Also in Divisions B1 and C7] Metal oxides, e.g. ores, are reduced in a reaction zone containing at least two fluidized beds separated by vertical baffles, the spaces above the beds being intercommunicating. The ore is preferably an iron ore, e.g. haematite, siderite, or limonite, which is reduced to magnetite. In Fig. 1, reactor 140 contains fluidized beds 142 and 144, preferably maintained at 800-1400‹ F., separated by arc-shaped baffle 138. Ore is fed from line 130 into bed 142, passes through orifice 146 into bed 144, is removed via line 150, and may be passed to another bed for further reduction. Beds 142 and 144 are fed with gases from partial oxidation furnaces 160 and 170 respectively, and with recycle gases from line 66. The gases may be of equal reducing strength, having a composition such that over-reduction beyond Fe 3 O 4 cannot occur. Alternatively, as described in Specification 1,135,755, the first gas may have a composition such that reduction beyond Fe 3 O 4 does occur, and the second gas may be oxidizing with respect to FeO and has a composition such that oxidation beyond Fe 3 O 4 cannot occur. The positioning of the baffle, which may be such as to give 65-80% conversion to Fe 3 O 4 in bed 142, reduces the total solids residence time necessary to achieve, e.g. 90% conversion, to below 90 mins. The ore is preheated (as described in Specification 1,135,754) first in cyclones 18 and 12, and then in fluidized bed heating zone 110 or in transfer line heat-exchanger 210 (Fig. 2, not shown), effluents from zone 110 and reactor 140 being recycled to cyclone 12. Alternatively, only the effluent from 140 may be used, or the effluents from beds 142 and 144 may be recycled separately.
GB5130165A
1964-12-07
1965-12-02
Method for carrying out gas-solids reactions
Expired
GB1135753A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US41654164
US3276858A
(en)
1964-12-07
1964-12-07
Method for carrying out gas-solids reactions
Publications (1)
Publication Number
Publication Date
GB1135753A
true
GB1135753A
(en)
1968-12-04
Family
ID=23650370
Family Applications (3)
Application Number
Title
Priority Date
Filing Date
GB5130165A
Expired
GB1135753A
(en)
1964-12-07
1965-12-02
Method for carrying out gas-solids reactions
GB2425468A
Expired
GB1135754A
(en)
1964-12-07
1965-12-02
A method of reducing non-magnetic iron ores
GB2425568A
Expired
GB1135755A
(en)
1964-12-07
1965-12-02
A method for reducing a non-magnetic oxidic iron ore
Family Applications After (2)
Application Number
Title
Priority Date
Filing Date
GB2425468A
Expired
GB1135754A
(en)
1964-12-07
1965-12-02
A method of reducing non-magnetic iron ores
GB2425568A
Expired
GB1135755A
(en)
1964-12-07
1965-12-02
A method for reducing a non-magnetic oxidic iron ore
Country Status (3)
Country
Link
US
(2)
US3276858A
(en)
FR
(1)
FR1461798A
(en)
GB
(3)
GB1135753A
(en)
Families Citing this family (12)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3276858A
(en)
*
1964-12-07
1966-10-04
Pullman Inc
Method for carrying out gas-solids reactions
US3607224A
(en)
*
1968-03-20
1971-09-21
Combustion Eng
Direct reduction of iron ore
US3661553A
(en)
*
1968-11-01
1972-05-09
Allis Chalmers Mfg Co
Process for reducing oxygen content of oxidic mineral ore
ZA71371B
(en)
*
1970-01-21
1972-06-28
Dunn Inc W
Recovery of thio2 from ores thereof
FR2450279A1
(en)
*
1979-03-01
1980-09-26
Fives Cail Babcock
Chemically attacking finely divided ore – using hot gas in circulation with fine ore particles, with heat and gas recovery to avoid energy waste gas loss and pollution
DE3540541A1
(en)
*
1985-11-15
1987-05-21
Metallgesellschaft Ag
METHOD FOR REDUCING HIGHER METAL OXIDS TO LOW METAL OXIDS
US5228901A
(en)
*
1991-02-25
1993-07-20
Idaho Research Foundation, Inc.
Partial reduction of particulate iron ores and cyclone reactor
FR2683830B1
(en)
*
1991-11-19
1994-04-08
Irsid
INSTALLATION FOR REDUCING THE IRON ORE IN A FLUIDIZED BED CIRCULATING.
FR2695141B1
(en)
*
1992-08-25
1994-10-07
Lorraine Laminage
Iron ore reduction plant using a circulating fluidized bed.
AT410802B
(en)
*
2001-11-09
2003-08-25
Voest Alpine Ind Anlagen
METHOD AND DEVICE FOR TREATING A FINE PARTICLE-SHAPED, IN PARTICULAR METAL-CONTAINING, INSERT MATERIAL
US7744848B2
(en)
*
2005-11-15
2010-06-29
Pittsburgh Mineral & Environment Technology, Inc.
High purity magnetite formation process and apparatus, and product thereof
CN105597917A
(en)
*
2016-01-19
2016-05-25
中国铝业股份有限公司
Method for increasing magnetism of weakly-magnetic iron ore
Family Cites Families (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
CA674804A
(en)
*
1963-11-26
Esso Research And Engineering Company
Production of magnetic oxides
US2477454A
(en)
*
1944-09-15
1949-07-26
Dorr Co
Process of reducing ferric oxide to ferrosoferric oxide
US2528552A
(en)
*
1946-09-10
1950-11-07
Pickands Mather & Co
Process for magnetically roasting hematitic ore and ore materials
DE873770C
(en)
*
1950-10-08
1953-04-16
Auto Union G M B H
Additional control for two-stroke internal combustion engines with at least two cylinders
FR1143415A
(en)
*
1955-03-18
1957-10-01
Dorr Oliver Inc
Apparatus for the fluidized bed treatment of finely divided solids
GB873770A
(en)
*
1957-03-30
1961-07-26
Azote Office Nat Ind
Improvements in or relating to the production of iron
US3020149A
(en)
*
1959-04-08
1962-02-06
Little Inc A
Beneficiation of ores
US3276858A
(en)
*
1964-12-07
1966-10-04
Pullman Inc
Method for carrying out gas-solids reactions
1964
1964-12-07
US
US41654164
patent/US3276858A/en
not_active
Expired – Lifetime
1965
1965-12-02
GB
GB5130165A
patent/GB1135753A/en
not_active
Expired
1965-12-02
GB
GB2425468A
patent/GB1135754A/en
not_active
Expired
1965-12-02
GB
GB2425568A
patent/GB1135755A/en
not_active
Expired
1965-12-06
FR
FR41085A
patent/FR1461798A/en
not_active
Expired
1966
1966-02-18
US
US52859466
patent/US3421884A/en
not_active
Expired – Lifetime
Also Published As
Publication number
Publication date
US3421884A
(en)
1969-01-14
GB1135755A
(en)
1968-12-04
US3276858A
(en)
1966-10-04
GB1135754A
(en)
1968-12-04
FR1461798A
(en)
1966-12-09
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