DE1182643B - Process for the production of pure northern strandite - Google Patents

Process for the production of pure northern strandite

Info

Publication number
DE1182643B
DE1182643B DEK50219A DEK0050219A DE1182643B DE 1182643 B DE1182643 B DE 1182643B DE K50219 A DEK50219 A DE K50219A DE K0050219 A DEK0050219 A DE K0050219A DE 1182643 B DE1182643 B DE 1182643B
Authority
DE
Germany
Prior art keywords
pure
strandite
production
northern
aluminum
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
Application number
DEK50219A
Other languages
German (de)
Inventor
Dr Ulrich Hauschild
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kali Chemie AG
Original Assignee
Kali Chemie AG
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 Kali Chemie AG filed Critical Kali Chemie AG
Priority to DEK50219A priority Critical patent/DE1182643B/en
Publication of DE1182643B publication Critical patent/DE1182643B/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
    • C01F7/00—Compounds of aluminium
    • C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
    • C01F7/34—Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts
    • C01F7/36—Preparation of aluminium hydroxide by precipitation from solutions containing aluminium salts from organic aluminium salts

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Inorganic Chemistry (AREA)
  • Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)

Description

Verfahren zur Herstellung von reinem Nordstrandit Im Patent 1162 337 wird ein Verfahren zur Herstellung von reinem Nordstrandit beschrieben, wobei ein auf beliebige Weise hergestelltes Aluminiumhydroxydgel durch Alterung in einer Alkylendiaminlösung in reinen Nordstrandit, der frei von irgendwelchen anderen Aluminiumhydroxydmodifikationen ist, übergeführt wird. Als geeignetes Ausgangsmaterial wird unter anderem auch ein durch Hydrolyse von Aluminiumalkoholaten gewonnenes Aluminiumhydroxydgel genannt.Process for the production of pure Nordstrandite Patent 1162,337 describes a process for the production of pure Nordstrandite, in which an aluminum hydroxide gel produced in any way is converted into pure Nordstrandite, which is free of any other aluminum hydroxide modifications, by aging in an alkylenediamine solution. An aluminum hydroxide gel obtained by hydrolysis of aluminum alcoholates is also mentioned as a suitable starting material.

Es wurde nun gefunden, daß bei Verwendung eines durch Hydrolyse eines Aluminiumalkoholats gewonnenen Aluminiumhydroxydgels die Arbeitsweise dadurch vereinfacht werden kann, daß die Hydrolyse des Aluminiumalkoholats nicht mit Wasser allein, sondern in einer wäßrigen Alkylendiaminlösung durchgeführt wird. Zwecks möglichst weitgehender Umwandlung in Nordstrandit läßt man das ausgefallene Aluminiumhydroxydgel, ohne zu filtrieren, in der Alkylendiaminlösung stehen, trennt dann den Niederschlag ab, wäscht und trocknet. Auf diese Weise wird ein Arbeitsgang, nämlich die gesonderte Darstellung des Aluminiumhydroxydgels, gespart.It has now been found that when using a by hydrolysis one Aluminum hydroxide gel obtained from aluminum alcoholate thereby simplifies the procedure it can be ensured that the hydrolysis of the aluminum alcoholate does not occur with water alone, but is carried out in an aqueous alkylenediamine solution. For the sake of possible extensive conversion to north strandite, the precipitated aluminum hydroxide gel is left, Standing in the alkylenediamine solution without filtering then separates the precipitate off, washes and dries. In this way, one operation, namely the separate one Representation of the aluminum hydroxide gel, saved.

Beispiel 100 g frisch destilliertes Aluminiumäthylat wurden mit 120 ml 80°/aiger Äthylendiaminlösung innig zerrieben, wobei eine durchscheinende Paste entstand. Nach Überführung in ein verschließbares Gefäß wurde die Paste mit Wasser auf 930 ml verdünnt. Anschließend wurde im verschlossenen Gefäß 2 Stunden bei Zimmertemperatur geschüttelt. Zur Umwandlung in Nordstrandit blieb die Suspension im fest verschlossenen Gefäß 46 Tage lang bei 50° C stehen, wobei gelegentlich umgeschüttelt wurde. Der Niederschlag wurde dann abfiltriert, mit Wasser und Alkohol gewaschen und bei 140° C getrocknet. Es wurden 48,15 g reiner Nordstrandit erhalten.Example 100 g of freshly distilled aluminum ethylate were mixed with 120 ml of 80 ° / aiger ethylenediamine solution thoroughly triturated, leaving a translucent paste originated. After transferring to a sealable vessel, the paste was mixed with water diluted to 930 ml. This was followed by 2 hours at room temperature in a closed vessel shaken. The suspension remained tightly closed for conversion to north strandite Stand the vessel at 50 ° C for 46 days, shaking occasionally. Of the Precipitate was then filtered off, washed with water and alcohol and stored at 140 ° C dried. 48.15 g of pure north strandite were obtained.

Claims (1)

Patentanspruch: Verfahren zur Herstellung von reinem Nordstrandit nach Patent 1162 337, d a d u r c h g e -k e n n z e i c h n e t, daß ein Aluminiumalkoholat in einer wäßrigen Lösung von Alkylendiaminen hydrolysiert und das entstandene Aluminiumhydroxydgel anschließend, ohne zu filtrieren, in dieser Lösung gealtert, dann filtriert, gewaschen und schließlich getrocknet wird.Claim: Process for the production of pure north strandite according to patent 1162 337, characterized in that an aluminum alcoholate is hydrolyzed in an aqueous solution of alkylenediamines and the aluminum hydroxide gel formed is then aged in this solution without filtering, then filtered, washed and finally dried .
DEK50219A 1962-12-01 1962-12-01 Process for the production of pure northern strandite Pending DE1182643B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEK50219A DE1182643B (en) 1962-12-01 1962-12-01 Process for the production of pure northern strandite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEK50219A DE1182643B (en) 1962-12-01 1962-12-01 Process for the production of pure northern strandite

Publications (1)

Publication Number Publication Date
DE1182643B true DE1182643B (en) 1964-12-03

Family

ID=7225534

Family Applications (1)

Application Number Title Priority Date Filing Date
DEK50219A Pending DE1182643B (en) 1962-12-01 1962-12-01 Process for the production of pure northern strandite

Country Status (1)

Country Link
DE (1) DE1182643B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4175118A (en) * 1975-12-17 1979-11-20 Condea Chemie Gmbh Method for manufacturing a high porous alumina having a large surface area and a low bulk density

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4175118A (en) * 1975-12-17 1979-11-20 Condea Chemie Gmbh Method for manufacturing a high porous alumina having a large surface area and a low bulk density

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