AT29476B - Process for the preparation of aluminum oxide from bauxite. - Google Patents

Process for the preparation of aluminum oxide from bauxite.

Info

Publication number
AT29476B
AT29476B AT29476DA AT29476B AT 29476 B AT29476 B AT 29476B AT 29476D A AT29476D A AT 29476DA AT 29476 B AT29476 B AT 29476B
Authority
AT
Austria
Prior art keywords
bauxite
aluminum oxide
preparation
caustic soda
oxide
Prior art date
Application number
Other languages
German (de)
Original Assignee
Fr Curtius & Co Fa
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 Fr Curtius & Co Fa filed Critical Fr Curtius & Co Fa
Application granted granted Critical
Publication of AT29476B publication Critical patent/AT29476B/en

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  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Description

  

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   Es kommt so sehr auf dieses Verhältnis an, dass Laugen,   welche   Tonerde und Natriumoxyd in diesem Verhältnis enthalten, die Tonerde durch blosses Schütteln abgeben. 



   Die Anwendung 270/oiger Natronlauge ist deshalb geboten, weil die nach dem Kochen fertige Aluminatlauge eine nicht viel von der 400igen (27%igen) Natronlauge abweichende Grädigkeit besitzen muss ; man hat mithin nach zweistündigem Kochen sogleich die richtige Lauge zur Weiterverarbeitung, während man bei Anwendung von verdünnteron Natron- 
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   This ratio is so important that alkalis, which contain clay and sodium oxide in this ratio, give off the clay by simply shaking it.



   The use of 270% caustic soda is advisable because the aluminate liquor, which is finished after boiling, does not have to have a degree that deviates much from the 400% (27%) caustic soda solution; So after two hours of boiling you immediately have the right lye for further processing, while when using dilute soda
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Claims (1)

PATENT-ANSPRUCH: Vorfahren zur Darstellung von Aluminiumoxyd aus Bauxit, dadurch gekennzeichnet, dass die Behandlung des Bauxits mit Natronlauge nach dem bekannten Verhältnis von 1'7 Molekülen Natriumoxyd auf 1 Molekül Alumininmoxyd ohne Anwendung von Überdruck erfolgt. PATENT CLAIM: Process for the preparation of aluminum oxide from bauxite, characterized in that the treatment of the bauxite with caustic soda is carried out according to the known ratio of 1'7 molecules of sodium oxide to 1 molecule of aluminum oxide without the use of excess pressure.
AT29476D 1905-12-04 1905-12-04 Process for the preparation of aluminum oxide from bauxite. AT29476B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT29476T 1905-12-04

Publications (1)

Publication Number Publication Date
AT29476B true AT29476B (en) 1907-08-10

Family

ID=3542856

Family Applications (1)

Application Number Title Priority Date Filing Date
AT29476D AT29476B (en) 1905-12-04 1905-12-04 Process for the preparation of aluminum oxide from bauxite.

Country Status (1)

Country Link
AT (1) AT29476B (en)

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