DE1261138B - Process for iron ore reduction - Google Patents
Process for iron ore reductionInfo
- Publication number
- DE1261138B DE1261138B DEK45691A DEK0045691A DE1261138B DE 1261138 B DE1261138 B DE 1261138B DE K45691 A DEK45691 A DE K45691A DE K0045691 A DEK0045691 A DE K0045691A DE 1261138 B DE1261138 B DE 1261138B
- Authority
- DE
- Germany
- Prior art keywords
- iron ore
- reduction
- ore reduction
- mixture
- 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.)
- Pending
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
- C21B13/0026—Making spongy iron or liquid steel, by direct processes obtaining iron or steel in a molten state introduction of iron oxide in the flame of a burner or a hot gas stream
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B5/00—Making pig-iron in the blast furnace
- C21B5/008—Composition or distribution of the charge
Description
Verfahren zur Eisenerzreduktion Die vorliegende Erfindung bezieht sich auf ein Verfahren zur Eisenerzreduktion.Process for Iron Ore Reduction The present invention relates to on a process for iron ore reduction.
Es sind bereits Verfahren zur Eisenerzreduktion bekannt, bei denen ein Kohlenwasserstoff in gasförmigem Zustand mit dem Eisenoxyd zur Reaktion gebracht wird. Die Reaktion läuft hierbei unter Mitwirkung von Katalysatoren ab. Als Katalysator kann beispielsweise das bei der Reaktion entstehende schwammförmige Eisen dienen. Dieses Verfahren hat den Nachteil, daß es erforderlich ist, zur Einleitung der Reaktion Eisenschwamm zu verwenden, der leicht der Gefahr unterliegt, daß sich im Laufe der Reaktion so schnell Katalysatorengifte bilden, daß die Wirksamkeit des Katalysators das Fortschreiten des Reduktionsvorganges bei den in Frage stehenden Temperaturen, die relativ niedrig sind, nicht mehr gewährleistet.There are already methods for iron ore reduction known in which a hydrocarbon in a gaseous state reacted with the iron oxide will. The reaction takes place with the help of catalysts. As a catalyst For example, the spongy iron formed during the reaction can be used. This method has the disadvantage that it is necessary to initiate the reaction To use sponge iron, which is easily subject to the risk of being in the course of Reaction so quickly forms catalyst poisons that the effectiveness of the catalyst the progress of the reduction process at the temperatures in question, which are relatively low are no longer guaranteed.
Die vorliegende Erfindung dient zur Vermeidung der Nachteile der vorgenannten bekannten Verfahren. Sie ist dadurch gekennzeichnet, daß das Eisenerz mit einem flüssigen Kohlenwasserstoff oder einem Gemisch von flüssigen Kohlenwasserstoffen vermischt, danach das Gemisch gezündet und mit oder ohne Zufuhur von Luft, Sauerstoff oder anderen Oxydationsmitteln in einem geeigneten Behälter, Hochofen od. dgl. einem Reduktionsvorgang unterzogen wird.The present invention serves to avoid the disadvantages of the aforementioned known procedures. It is characterized in that the iron ore with a liquid hydrocarbon or a mixture of liquid hydrocarbons mixed, then ignited the mixture and with or without supply of air, oxygen or other oxidizing agents in a suitable container, blast furnace or the like Is subjected to reduction process.
Die Erfinder haben bewußt jede Anwendung von Katalysatoren vermieden, die die betriebstechnische und wirtschaftliche Durchführung des Verfahrens gefährden. Durch die Vermischung des Eisenerzes mit einem flüssigen Kohlenwasserstoff und der danach erfolgenden Zündung dieses Gemisches werden Reduktionstemperaturen erzeugt, die das chemische Gleichgewicht eindeutig zugunsten einer vollständigen Reduktion des Erzes verschieben, so daß quantitativ das Erz zu Metall reduziert wird. Das erfindungsgemäße Verfahren ist also von der Funktionsfähigkeit irgendwelcher katalytischen Substanzen völlig unabhängig.The inventors have deliberately avoided any use of catalysts, which endanger the operational and economic implementation of the process. By mixing the iron ore with a liquid hydrocarbon and the subsequent ignition of this mixture, reduction temperatures are generated, which the chemical equilibrium clearly in favor of a complete reduction move the ore so that the ore is quantitatively reduced to metal. That The method according to the invention is therefore of the functionality of any catalytic Substances completely independent.
Ein Kracken der Kohlenwasserstoffe findet beim erfindungsgemäßen Verfahren nicht statt. Die Kohlenwasserstoffe werden vielmehr zu Kohlenoxyd bzw. Kohlendioxyd verbrannt, was dadurch geschieht, daß zunächst von außen Sauerstoff zugeführt wird und beim Erreichen genügend hoher Temperaturen (oberhalb der Reduktionstemperatur) die Reaktion dadurch weiterläuft, daß der für die Verbrennung erforderliche Sauerstoff dem Erz unter Reduzierung desselben entnommen wird. Ein besonderer Vorteil des erfindungsgemäßen Verfahrens gegenüber den bekannten Verfahren, die feste Reduktionsmittel, z. B. Koks, verwenden, liegt darin, daß die Eisenerze mit den flüssigen Kohlenwasserstoffen ausgezeichnet vermischt werden können.The hydrocarbons are cracked in the process according to the invention does not take place. Rather, the hydrocarbons become carbon dioxide or carbon dioxide burned, which happens that oxygen is first supplied from the outside and when reaching sufficiently high temperatures (above the reduction temperature) the reaction continues in that the oxygen required for combustion is removed from the ore with reduction of the same. A particular advantage of the invention Process over the known processes that use solid reducing agents, e.g. B. Coke, to use, lies in the fact that the iron ores with the liquid hydrocarbons can be mixed perfectly.
Ein weiterer Vorteil der Verwendung flüssiger Reduktionsmittel während der Vorbereitung ist, daß im Gegensatz zu den üblichen Reduktionsmitteln die flüssigen Anteile bereits in weitestem Maße in die Poren der Erze eindringen und somit bei Vorliegen der erforderlichen Reaktionsbedingungen zu einer schnelleren und unmittelbar einsetzenden Reduktion der Erze führen.Another advantage of using liquid reducing agents during The preparation is that, in contrast to the usual reducing agents, the liquid ones Fractions already penetrate into the pores of the ores to the greatest possible extent and thus with The necessary reaction conditions are present more quickly and immediately the onset of a reduction in ores.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK45691A DE1261138B (en) | 1962-01-18 | 1962-01-18 | Process for iron ore reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK45691A DE1261138B (en) | 1962-01-18 | 1962-01-18 | Process for iron ore reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE1261138B true DE1261138B (en) | 1968-02-15 |
Family
ID=7223938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK45691A Pending DE1261138B (en) | 1962-01-18 | 1962-01-18 | Process for iron ore reduction |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE1261138B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001044522A1 (en) * | 1999-12-15 | 2001-06-21 | Polysius Ag | Method and installation for reducing ore fines in a multi-stage suspension gas stream using a cyclone separator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2288613A (en) * | 1940-05-17 | 1942-07-07 | Minerals And Metals Corp | Process of reducing metallic oxides |
| DE1007934B (en) * | 1953-08-20 | 1957-05-09 | Steinkohlen Elek Zitaet Ag | Procedure for the operation of the cyclone combustion for a steam boiler plant |
-
1962
- 1962-01-18 DE DEK45691A patent/DE1261138B/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2288613A (en) * | 1940-05-17 | 1942-07-07 | Minerals And Metals Corp | Process of reducing metallic oxides |
| DE1007934B (en) * | 1953-08-20 | 1957-05-09 | Steinkohlen Elek Zitaet Ag | Procedure for the operation of the cyclone combustion for a steam boiler plant |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001044522A1 (en) * | 1999-12-15 | 2001-06-21 | Polysius Ag | Method and installation for reducing ore fines in a multi-stage suspension gas stream using a cyclone separator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE2462866C2 (en) | ||
| DE558430C (en) | Process for the production of hydrogen or nitrogen-hydrogen mixtures from hydrocarbons | |
| DE1261138B (en) | Process for iron ore reduction | |
| US3205182A (en) | Supported nickel catalysts and method of manufacture thereof | |
| DE1072237B (en) | Process for the production of unsaturated hydrocarbons, in particular ethylene and propylene, by splitting hydrocarbons | |
| DE484337C (en) | Process for the catalytic production of multi-membered paraffinic hydrocarbons from carbon oxides and hydrogen | |
| DE403049C (en) | Process for the production of hydrogen or nitrogen-hydrogen mixtures from hydrocarbons | |
| DE476513C (en) | Process for the heat treatment of metals and metal alloys, in particular iron and steel in the form of blanks, sheets, straps, wires and the like Like. In a hydrogen atmosphere | |
| US3284345A (en) | Process for desulfurization of crude oil or heavy oil | |
| DE3124647A1 (en) | METHOD FOR THE COMBUSTION OF SULFUR-CONTAINING AND NITROGEN-CONTAINING COOKS FROM COOKS FROM CATALYST PARTICLES CONTAINING COOKIES | |
| DE529067C (en) | Process for carrying out catalytic reactions of gases and vapors that take place at high temperatures | |
| DE686456C (en) | Process for carrying out catalytic reactions, in particular for the production of hydrocarbons | |
| DE865337C (en) | Process for the production of anti-knock fuels | |
| DE1231219B (en) | Continuous cycle process for the production of hydrogen | |
| DE867847C (en) | Process for the production of motor fuels and heating oils | |
| DE2219061C2 (en) | Process for the production of hydrogen-rich gas mixtures | |
| DE929186C (en) | Process for the production of low-boiling hydrocarbons from higher-boiling hydrocarbons by catalytic cracking | |
| DE2315799C3 (en) | Process for reforming hydrocarbons or a hydrocarbon-containing gas | |
| DE933787C (en) | Thermal process for metal extraction by reducing their oxygen compounds | |
| DE376167C (en) | Process for the extraction of volatile metals, especially zinc, from ores and residues | |
| DE566448C (en) | Manufacture of cobalt nitrosocarbonyl | |
| DE870152C (en) | Process for the production of hydrocarbon oils from carbonaceous substances | |
| AT116054B (en) | Process for the preparation of methanol and other oxygen-containing organic compounds. | |
| AT134261B (en) | Process for removing arsenic and antimony from iron and manganese ores. | |
| AT153480B (en) | Two-stage process for the production of cast iron or steel and a shaft furnace to carry out this process. |