AT53731B - Process for the production of iron oxide. - Google Patents

Process for the production of iron oxide.

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Publication number
AT53731B
AT53731B AT53731DA AT53731B AT 53731 B AT53731 B AT 53731B AT 53731D A AT53731D A AT 53731DA AT 53731 B AT53731 B AT 53731B
Authority
AT
Austria
Prior art keywords
production
iron oxide
manganese
iron
oxide
Prior art date
Application number
Other languages
German (de)
Inventor
John Gill
Original Assignee
John Gill
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 John Gill filed Critical John Gill
Application granted granted Critical
Publication of AT53731B publication Critical patent/AT53731B/en

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  • Compounds Of Iron (AREA)
  • Inorganic Compounds Of Heavy Metals (AREA)

Description

  

   <Desc/Clms Page number 1> 
 



  Verfahren zur Herstellung von Eisenoxyd. 
 EMI1.1 
 

 <Desc/Clms Page number 2> 

 



   Wie aus der Zeichnung ersichtlich, können auch zwei   oder mehrere Gefässe A   serienweise angeordnet sein. Es empfiohlt sich in diesem Falle, für die Luft und Kohlensäure, die hintereinander durch sie hindurchgedrückt worden, falls erforderlich, zwischen je zwei Gefässe einen Kondensator anzuordnen. 



   Das   Kohlensäuregas     CO)   und die Luft werden durch die Flüssigkeit unter Druck 
 EMI2.1 
 Da sich die Kalziumbikarbonatlösung in einer Lösung von   Ferrochlorid   (Fe Cl2) befindet, so fällt sie das Eisen alsbald als Karbonat (Fe CO3) aus, unter Bildung von   Kohlensäure-   gas und Wasser. Das hiebei entstehende   CC   bildet wieder H2 C03, welches seinerseits wieder den Kalk zersetzt und eine weitere Ausfällung des Eisens herbeiführt, bis die Operation beendet ist. 



   Das so gebildete Ferrokarbonat (Fe CO3) oxydiert sich im Ausgenblicke seiner Bildung 
 EMI2.2 
 geblasen wird, wobei der Oxydationsprozess durch die mittels Dampf bewirkte Erhitzung der Masse auf zirka   850   C und Erhöhung des Druckes auf etwa   1'4   bis   2. 1   Atm.   be-   schleunigt wird. 



   Viele   chloridhaltige   Flüssigkeiten enthalten Manganverbindungen, z. B. Manganchlorid, welch letzteres während der Behandlung zum Teif zu Manganoxyd oxydiert wird. 



  Würde man diesem Produkt gestatten, in dem   Eisenhydrat zurückzubleiben,   so würde dies den Wert der Kalzinierung beeinträchtigen. Das entstehende Oxyd würde geringwertig werden, da es von bräunlicher Farbe sein würde, wodurch es z. B. als Farbe minderwertig ist. 
 EMI2.3 
 Erflndung zweekmässig mit Chlorwasserstoffsäure, durch welche die etwa vorhandenen Manganverbindungen in Manganchlorid übergeführt werden. Man lässt absetzen und entfernt die Manganchloride durch Dekantieren. Dieselben können auf Siena und Umbra verarbeitet werden. 



   Es gelingt in der beschriebenen Weise, ein praktisch reines Ferrihydrat, Fe2 (OH)6 herzustellen. Dieses Produkt wird gewaschen, zu dem Zwecke, alle löslichen   Satze zu ent-   fernen, filtriert, getrocknet und in einem geeigneten Ofen kalziniert und man erhält so ein   hochklassiges,   als rein zu bezeichnendes 97- bis 98%iges Ferrioxyd   (Fe2     Og).  



   <Desc / Clms Page number 1>
 



  Process for the production of iron oxide.
 EMI1.1
 

 <Desc / Clms Page number 2>

 



   As can be seen from the drawing, two or more vessels A can also be arranged in series. In this case it is advisable to place a condenser between two vessels for the air and carbon dioxide that have been pushed through them one after the other.



   The carbon dioxide gas CO) and the air are pressurized by the liquid
 EMI2.1
 Since the calcium bicarbonate solution is in a solution of ferrochloride (Fe Cl2), the iron soon precipitates as carbonate (Fe CO3) with the formation of carbonic acid gas and water. The resulting CC forms H2 CO3 again, which in turn decomposes the lime and causes further precipitation of the iron until the operation is finished.



   The ferro carbonate (Fe CO3) formed in this way is oxidized in the moment of its formation
 EMI2.2
 is blown, the oxidation process being caused by the heating of the mass by means of steam to around 850 C and an increase in pressure to around 1'4 to 2.1 atm. is accelerated.



   Many chloride containing liquids contain manganese compounds, e.g. B. Manganese chloride, the latter being partially oxidized to manganese oxide during the treatment.



  Allowing this product to remain in the iron hydrate would detract from the calcination value. The resulting oxide would be of little value since it would be brownish in color, making it e.g. B. is inferior as color.
 EMI2.3
 Two-way invention with hydrochloric acid, through which any manganese compounds present are converted into manganese chloride. It is allowed to settle and the manganese chlorides are removed by decanting. The same can be used on sienna and umber.



   It is possible in the manner described to produce a practically pure ferric hydrate, Fe2 (OH) 6. This product is washed, for the purpose of removing all soluble deposits, filtered, dried and calcined in a suitable oven and a high-quality, pure ferric oxide (Fe2Og) is obtained.

 

Claims (1)

PATENT-ANSPRUCH : EMI2.4 PATENT CLAIM: EMI2.4
AT53731D 1909-03-09 1910-02-22 Process for the production of iron oxide. AT53731B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB53731X 1909-03-09

Publications (1)

Publication Number Publication Date
AT53731B true AT53731B (en) 1912-05-25

Family

ID=9794893

Family Applications (1)

Application Number Title Priority Date Filing Date
AT53731D AT53731B (en) 1909-03-09 1910-02-22 Process for the production of iron oxide.

Country Status (1)

Country Link
AT (1) AT53731B (en)

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