GB1243443A - A method for the production of liquid pig iron or steel directly from dressed ore - Google Patents
A method for the production of liquid pig iron or steel directly from dressed oreInfo
- Publication number
- GB1243443A GB1243443A GB3666369A GB3666369A GB1243443A GB 1243443 A GB1243443 A GB 1243443A GB 3666369 A GB3666369 A GB 3666369A GB 3666369 A GB3666369 A GB 3666369A GB 1243443 A GB1243443 A GB 1243443A
- Authority
- GB
- United Kingdom
- Prior art keywords
- iron
- oxygen
- slag layer
- gas
- pig iron
- Prior art date
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B13/00—Making spongy iron or liquid steel, by direct processes
- C21B13/0006—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state
- C21B13/0013—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide into a bath of molten iron containing a carbon reductant
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B11/00—Making pig-iron other than in blast furnaces
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B11/00—Making pig-iron other than in blast furnaces
- C21B11/08—Making pig-iron other than in blast furnaces in hearth-type furnaces
-
- 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
-
- 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
- Y02P10/143—Reduction of greenhouse gas [GHG] emissions of methane [CH4]
-
- 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
- Y02P10/20—Recycling
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
1,243,443. Producing iron. O. JOHNSSON. July 21, 1969, No. 36663/69. Heading C7D. In the production of liquid pig iron or steel by smelting reduction, wherein a bath J of pig iron or steel is covered by an iron oxide-containing slag layer S to which iron oxide material, iron sulphide material, scrap, and/or other iron carrier is supplied, a free oxygen-containing gas is supplied directly into the slag layer (pipe L) to such a depth that CO, and, if reduction means containing H 2 or hydrocarbons are added H 2 , moving up through the slag layer will convert to CO 2 and H 2 O respectively to an extent of more than 70%, and reduction means is supplied directly to the iron bath J, e.g. if the C content of J is insufficient for smelting reduction, by pipe R, the relative concentrations of the ions in the slag layer being such that the ratio (Ca<SP>2+</SP>+ Mg<SP>2+</SP> + Fe<SP>2+</SP> + Fe<SP>3+</SP>) to Si<SP>2+</SP> is greater than 1. The oxygen-containing gas is air, oxygen, air/oxygen, or argon/oxygen, the reducing agent is coke powder, mineral oil, natural gas, cracking gases, producer gas or water gas, and the slag layer is preferably at least 30 cm. deep.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3666369A GB1243443A (en) | 1969-07-21 | 1969-07-21 | A method for the production of liquid pig iron or steel directly from dressed ore |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3666369A GB1243443A (en) | 1969-07-21 | 1969-07-21 | A method for the production of liquid pig iron or steel directly from dressed ore |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1243443A true GB1243443A (en) | 1971-08-18 |
Family
ID=10390149
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3666369A Expired GB1243443A (en) | 1969-07-21 | 1969-07-21 | A method for the production of liquid pig iron or steel directly from dressed ore |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1243443A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0605535A1 (en) * | 1991-09-20 | 1994-07-13 | Ausmelt Pty Ltd | Process for production of iron. |
EP1087022A1 (en) * | 1999-09-27 | 2001-03-28 | Technological Resources Pty. Ltd. | A direct smelting process |
-
1969
- 1969-07-21 GB GB3666369A patent/GB1243443A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0605535A1 (en) * | 1991-09-20 | 1994-07-13 | Ausmelt Pty Ltd | Process for production of iron. |
EP0605535A4 (en) * | 1991-09-20 | 1995-06-14 | Ausmelt Pty Ltd | Process for production of iron. |
US5498277A (en) * | 1991-09-20 | 1996-03-12 | Ausmelt Limited | Process for production of iron |
EP1087022A1 (en) * | 1999-09-27 | 2001-03-28 | Technological Resources Pty. Ltd. | A direct smelting process |
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