DE687968C - Process for the production of sublimed aluminum chloride - Google Patents

Process for the production of sublimed aluminum chloride

Info

Publication number
DE687968C
DE687968C DE1937B0180616 DEB0180616D DE687968C DE 687968 C DE687968 C DE 687968C DE 1937B0180616 DE1937B0180616 DE 1937B0180616 DE B0180616 D DEB0180616 D DE B0180616D DE 687968 C DE687968 C DE 687968C
Authority
DE
Germany
Prior art keywords
chloride
production
aluminum
aluminum chloride
sublimed
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
Application number
DE1937B0180616
Other languages
German (de)
Inventor
Dr Wolfgang Sapper
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.)
BRAUNKOHLE BENZIN AKT GES
Original Assignee
BRAUNKOHLE BENZIN AKT GES
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 BRAUNKOHLE BENZIN AKT GES filed Critical BRAUNKOHLE BENZIN AKT GES
Priority to DE1937B0180616 priority Critical patent/DE687968C/en
Application granted granted Critical
Publication of DE687968C publication Critical patent/DE687968C/en
Expired 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
    • C01F7/48—Halides, with or without other cations besides aluminium
    • C01F7/56—Chlorides
    • C01F7/58—Preparation of anhydrous aluminium chloride

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 sublimiertem Aluminiumchlorid Die Herstellung des sublimierten Aluminiumchlorids aus metallischem Aluminium und gasförmigem Chlorwasserstoff ist an sich bekannt. Die Umsetzung wird technisch bei Temperaturen von 5oo bis 6oo° durchgeführt, weil erst bei diesen hohen Temperaturen eine genügende Reaktionsgeschwindigkeit erreicht wird.Process for the production of sublimed aluminum chloride The production of sublimed aluminum chloride from metallic aluminum and gaseous hydrogen chloride is known per se. The implementation is technically at temperatures of 500 to 600 ° carried out because a sufficient reaction rate only at these high temperatures is achieved.

Weiterhin ist es bekannt, die Umsetzung bei tieferer Temperatur auszuführen, indem man Chlorwasserstoff in eine Suspension von Aluminium in geschmolzenem Zinkchlorid einleitet. Dieses Verfahren besitzt aber, abgesehen davon, daß eine große Menge Zinkchlorid benötigt wird, u. a. noch den Nachteil, daß das erhaltene Aluminiumchlorid kaum frei von dem verhältnismäßig leicht destillierenden Zinkchlorid zu erhalten ist.It is also known to carry out the reaction at a lower temperature, by adding hydrogen chloride to a suspension of aluminum in molten zinc chloride initiates. However, this method has, besides that, a large amount Zinc chloride is needed, i.a. nor the disadvantage that the aluminum chloride obtained hardly obtainable free of the relatively easily distilling zinc chloride is.

Es hat sich nun gezeigt, daß durch kleine Mengen wasserfreien Cadmiumchlorids die Reaktionstemperatur bedeutend herabgesetzt werden kann. In Anwesenheit von etwa i % Cadmiumchlorid setzt die -Reaktion bereits zwischen i 9o und 200° C ein, während reines Aluminium mit Salzsäuregas erst bei 250 bis 26o° zu reagieren beginnt.It has now been shown that small amounts of anhydrous cadmium chloride the reaction temperature can be reduced significantly. In the presence of about i% cadmium chloride starts the reaction between 90 and 200 ° C, while Pure aluminum does not begin to react with hydrochloric acid gas until it reaches 250 to 26o °.

Vergleichsweise mit Zinkchlorid als Umsetzungsbeschleuniger durchgeführte Versuche ergaben, daß Zn C12 nicht nur wesentlich weniger wirksam ist (Reaktionsbeginn 220 bis 23o°), sondern auch daß das mit Hilfe von Cadmiumchlorid erhaltene Aluminiumchlorid erheblich reiner ist.Comparatively carried out with zinc chloride as a conversion accelerator Experiments showed that Zn C12 is not only much less effective (start of reaction 220 to 23o °), but also that the aluminum chloride obtained with the help of cadmium chloride is considerably purer.

Claims (1)

PATENTANSPRUCH: Verfahren zur Herstellung von sublimiertem Aluminiumchlorid aus Aluminium und gasförmigem Chlorwasserstoff bei erhöhter Temperatur in Gegenwart eines Reaktionsbeschleunigers, dadurch gekennzeichnet, daß dem Aluminium als Reaktionsbeschleuniger wasserfreies Cadmiumchlorid in kleinen Mengen zugesetzt wird.PATENT CLAIM: Process for the production of sublimed aluminum chloride from aluminum and gaseous hydrogen chloride at elevated temperature in the presence a reaction accelerator, characterized in that aluminum is used as a reaction accelerator anhydrous cadmium chloride is added in small amounts.
DE1937B0180616 1937-11-07 1937-11-07 Process for the production of sublimed aluminum chloride Expired DE687968C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE1937B0180616 DE687968C (en) 1937-11-07 1937-11-07 Process for the production of sublimed aluminum chloride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE1937B0180616 DE687968C (en) 1937-11-07 1937-11-07 Process for the production of sublimed aluminum chloride

Publications (1)

Publication Number Publication Date
DE687968C true DE687968C (en) 1940-02-09

Family

ID=7008905

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1937B0180616 Expired DE687968C (en) 1937-11-07 1937-11-07 Process for the production of sublimed aluminum chloride

Country Status (1)

Country Link
DE (1) DE687968C (en)

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