AT55905B - Process for the desulphurization of ores. - Google Patents

Process for the desulphurization of ores.

Info

Publication number
AT55905B
AT55905B AT55905DA AT55905B AT 55905 B AT55905 B AT 55905B AT 55905D A AT55905D A AT 55905DA AT 55905 B AT55905 B AT 55905B
Authority
AT
Austria
Prior art keywords
furnace
ores
desulphurization
desc
combustion products
Prior art date
Application number
Other languages
German (de)
Inventor
Utley Wedge
Original Assignee
Utley Wedge
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.)
Filing date
Publication date
Application filed by Utley Wedge filed Critical Utley Wedge
Application granted granted Critical
Publication of AT55905B publication Critical patent/AT55905B/en

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  • Manufacture And Refinement Of Metals (AREA)

Description

  

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   Als Reduktionsmittel ist vorzugsweise kohlenstoffhaltiges Material anzuwenden, wie z. B. Koksstaub,   puiverförmige Kohle, Holzkohle, pulverisierter Petroleumkoks   oder kohlenstoffoder kohlenwasserstoffhaltige Stoffe in irgend einer anderen Form. Der grösste Teil des Schwefels wird aus den Sulfiden bei der Behandlung in dem oberen Ofenteil ausgetrieben ;

   beim Übertritt des Gutes mit seinem verbleibenden Schwefelgehalt und anderen Verunreinigungen in die oberste Etage des unteren Ofenteiles vermischt sich mit ihm der kohlenhaltige Zuschlag, wobei das gesamte im Gut enthaltene Sulfat reduziert wird, so dass der verbleibende Schwefelgehalt durch Anwendung einer Temperatur von nur etwa 650"C ausgetrieben werden kann,   gegenüber   Temperaturen von 850 bis   10000 C,   die   gewöhnlich   in dem unteren Ofenteil erforderlich sind. 



   Werden die Verbrennungsprodukte der kohlenstoffhaltigen Substanz in dem unteren Ofenteil durch die vom Material verschlossen gehaltene Öffnung verhindert, in den oberen Teil des Ofens   zu gtangpn. so   ist für den unteren Ofenteil ein besonderer Gasaustritt 11 vorgesehen, durch   weichen   sowohl diese Verbrennungsprodukte als auch die in dem unteren Ofenteil Ausgetriebenen 
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   Verbrennungaprodukte   von einer Feuerung auf der einen Ofenseite erhalten, die   durch Kanäle 3a   auf der anderen Ofenseite entweichen. 



   Zur Zersetzung der basischen Sulfate ist eine so   geringe Menge kohienstonhaltiger   Substanz erforderlich. dass ihr Zusatz die Verwendung der den Ofen verlassenden schwefligen Gase zur Darstellung von schwefliger Säure und Schwefelsäure nicht verhindert. so dass-falls die Arbeits-   kammern   des unteren   Ofenteiles Muffelheizung haben, wie   in der Zeichnung   dargestellt - die   aus dem unteren Ofenteil entweichenden schwefligen Gase durch die erzbeschickten Etagen des oberen Ofenteiles geleitet werden können; auf alle   Fälle können   sie aber hindurchstreichen hei   Nichtweiterverwendung der schwefligen Gase.   



   Luft für oxydierende Zwecke kann einer oder mehreren   Arbeitskammern   des unteren Ofen- 
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   PATENT-ANSPRÜCHE : 1.   Verfahren zur Entschwefelung von   Erzen   durch Vorrösten und   darauf folgendes Fertig- 
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**WARNUNG** Ende DESC Feld kannt Anfang CLMS uberlappen**.



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   As a reducing agent, carbonaceous material is preferably used, such as. B. coke dust, powdered coal, charcoal, powdered petroleum coke or carbon or hydrocarbon-containing substances in any other form. Most of the sulfur is driven off from the sulphides in the treatment in the upper part of the furnace;

   When the goods with their remaining sulfur content and other impurities pass into the top floor of the lower part of the furnace, the carbonaceous aggregate mixes with it, whereby all of the sulfate contained in the goods is reduced so that the remaining sulfur content is reduced by applying a temperature of only about 650 " C can be driven off, against temperatures of 850 to 10,000 C, which are usually required in the lower part of the furnace.



   If the combustion products of the carbonaceous substance in the lower part of the furnace are prevented from entering the upper part of the furnace through the opening kept closed by the material. a special gas outlet 11 is provided for the lower part of the furnace through which both these combustion products and those expelled in the lower part of the furnace can be used
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   Combustion products obtained from a furnace on one side of the furnace, which escape through channels 3a on the other side of the furnace.



   Such a small amount of carbonaceous substance is required to decompose the basic sulphates. that their addition does not prevent the use of the sulphurous gases leaving the furnace for the production of sulphurous acid and sulfuric acid. so that - if the working chambers of the lower part of the furnace have muffle heating, as shown in the drawing - the sulphurous gases escaping from the lower part of the furnace can be conducted through the ore-loaded floors of the upper part of the furnace; in any case, however, they can strike through if the sulphurous gases are no longer used.



   Air for oxidizing purposes can be used in one or more working chambers of the lower furnace
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   PATENT CLAIMS: 1. Process for desulphurisation of ores by pre-roasting and subsequent finishing
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** WARNING ** End of DESC field may overlap beginning of CLMS **.

 

Claims (1)

**WARNUNG** Ende CLMS Feld Kannt Anfang DESC uberlappen**. ** WARNING ** End of CLMS field may overlap beginning of DESC **.
AT55905D 1910-01-20 1911-01-18 Process for the desulphurization of ores. AT55905B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US55905XA 1910-01-20 1910-01-20

Publications (1)

Publication Number Publication Date
AT55905B true AT55905B (en) 1912-10-25

Family

ID=21716638

Family Applications (1)

Application Number Title Priority Date Filing Date
AT55905D AT55905B (en) 1910-01-20 1911-01-18 Process for the desulphurization of ores.

Country Status (1)

Country Link
AT (1) AT55905B (en)

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