DE530568C - Process for reducing iron ores by means of gases - Google Patents
Process for reducing iron ores by means of gasesInfo
- Publication number
- DE530568C DE530568C DEB120604D DEB0120604D DE530568C DE 530568 C DE530568 C DE 530568C DE B120604 D DEB120604 D DE B120604D DE B0120604 D DEB0120604 D DE B0120604D DE 530568 C DE530568 C DE 530568C
- Authority
- DE
- Germany
- Prior art keywords
- gases
- iron ores
- oxygen
- reducing iron
- reducing
- 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
- C21B13/0073—Selection or treatment of the reducing gases
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacture Of Iron (AREA)
Description
Verfahren zum Reduzieren von Eisenerzen mittels Gase Dem Hauptpatent 528 347 liegt ein Verfahren zur Reduktion von Eisenerzen zugrunde, bei dem als Reduktionsgas das durch Vergasung von Brennstoffstaub mit Sauerstoff oder Sauerstofluftgemischen erzeugte Gasgemisch verwendet wird.Process for reducing iron ores by means of gases The main patent 528 347 is based on a process for reducing iron ores in which the gas mixture produced by gasifying fuel dust with oxygen or oxygen-air mixtures is used as the reducing gas.
Es wurde nun gefunden. daß man gleichfalls in vorteilhafter Weise Eisenerze durch solche Gasgemische reduzieren kann, «-elche aus kohlenwasserstoffhaltigen Gasen und Dämpfen, wie Erdgas, Kokereigas. Krackgas usw., durch teilweise Zersetzung mittels Sauerstoffs oder Sauerstoffluftgemische unter Umwandlung des Kohlenwasserstoffs im wesentlichen zu Kohlenolvd und Wasserstoff entstehen.It has now been found. that one is also in an advantageous manner Iron ores can be reduced by such gas mixtures, «-elche from hydrocarbon-containing Gases and vapors such as natural gas, coke oven gas. Cracked gas, etc., by partial decomposition by means of oxygen or oxygen-air mixtures with conversion of the hydrocarbon essentially to carbon and hydrogen.
Die einzelnen im Hauptpatent beschriebenen besonderen Arbeitsweisen sind ohne weiteres auch bei dem vorliegenden Verfahren anwendbar. Die reduzierten Eisenerze können durch heiße, unverbrauchte Reduktionsgase geschmolzen werden: mitunter kann es hierbei ebenfalls vorteilhaft sein, zur Schmelzung ein anderes. aus einem anderen Ausgangsstoff hergestelltes Ga:gernisch zur Reduktion züi venvendLn. Ebenso empfiehlt es sich zuweilen, (lein Sauerstoff andre Gase oder Dämpfe zuzufügen, insbesondere Wasserdampf, Kohlensäure oder gebrauchte Reduktionsgase. Ferner sind die im Hauptpatent beschriebenen -Möglichkeiten der Zuinischung von Gasen an anderen Stellen des Gaslaufes oder der Temperaturregelung des Gases durch andere -Mittel ebenfalls ausführbar. Auch kann die Zersetzung der Kohlenwasserstofe ganz oder teilweise am Eisen oder im flüssigen Eisenbade selbst stattfinden. Auch im vorliegenden Falle wird die Wirtschaftlichkeit des Verfahrens stark erhöht, wenn die ganz oder teilweise ausgenutzten Reduktionsgase in an sich bekannter Weise für anderweitige, z. B. chemische Zwecke weiterverarbeitet «-erden.The individual special working methods described in the main patent can also be used without further ado in the present method. The reduced ones Iron ores can be melted by hot, unused reducing gases: sometimes it can also be advantageous here to use a different one for melting. from a Gas produced from another starting material can be used for reduction. as well it is sometimes advisable to add other gases or vapors, especially without oxygen Steam, carbon dioxide or used reducing gases. Furthermore, they are in the main patent described -possibilities of adding gases at other points in the gas flow or the temperature control of the gas by other means can also be carried out. The decomposition of the hydrocarbons can also be wholly or partly on iron or take place in the liquid iron bath itself. In the present case, too, is the economy of the process is greatly increased if the reducing gases are fully or partially used in a manner known per se for other, z. B. processed chemical purposes "-earth.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB120604D DE530568C (en) | 1925-07-02 | 1925-07-02 | Process for reducing iron ores by means of gases |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEB120604D DE530568C (en) | 1925-07-02 | 1925-07-02 | Process for reducing iron ores by means of gases |
Publications (1)
Publication Number | Publication Date |
---|---|
DE530568C true DE530568C (en) | 1931-07-30 |
Family
ID=6995319
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEB120604D Expired DE530568C (en) | 1925-07-02 | 1925-07-02 | Process for reducing iron ores by means of gases |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE530568C (en) |
-
1925
- 1925-07-02 DE DEB120604D patent/DE530568C/en not_active Expired
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