CH137466A - Process for converting metal salts into those with a higher oxidation state. - Google Patents

Process for converting metal salts into those with a higher oxidation state.

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Publication number
CH137466A
CH137466A CH137466DA CH137466A CH 137466 A CH137466 A CH 137466A CH 137466D A CH137466D A CH 137466DA CH 137466 A CH137466 A CH 137466A
Authority
CH
Switzerland
Prior art keywords
metal salts
those
oxidation state
higher oxidation
converting metal
Prior art date
Application number
Other languages
German (de)
Inventor
Aktiengesellsc Farbenindustrie
Original Assignee
Ig Farbenindustrie 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 Ig Farbenindustrie Ag filed Critical Ig Farbenindustrie Ag
Publication of CH137466A publication Critical patent/CH137466A/en

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  • Soft Magnetic Materials (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Description

  

  Verfahren zur     Überführung    von Metallsalzen in solche von höherer Oxydationsstufe.    Um Metallsalze in höhere Oxydationsstu  fen überzuführen, gibt es verschiedene Mittel  wie Elektrolyse, Oxydation mit Stickoxyden,  Chlor usw.  



  Es ist auch bekannt, dass gelöste Metall  salze von niedriger Oxydationsstufe durch  Einwirkung des     Luftsauerstoffes    langsam in  Salze höherer Oxydationsstufe übergehen.  



  Es wurde nun gefunden, dass man mit       bis        zu        100%        sauerstoffhaltigen        Gasen        bei     Drucken über 1 Atmosphäre bei Temperatu  ren oberhalb<B>100'</B> Metallsalze in Lösung  technisch vollständig in höhere Oxydations  stufen überführen kann. Die Oxydation kann  in neutraler, saurer oder alkalischer Lösung  vor sich gehen, je nach dem Charakter des  Salzes. Die erhöhte Temperatur bewirkt einen       1" < 1schen    Umsatz, zumal, wenn die Lösung  gerührt wird.  



  Es kann sowohl in wässeriger, als auch  in nicht wässeriger, sowie auch in einem     Ge-          rnlisch    von wässerigen und reicht wässerigen  Lösungen gearbeitet werden.    <I>Beispiel 1:</I>  25     gr        FeSU4.7HE0    (zweiwertiges Eisen  und 2     1/s    cm' konzentrierte     H2S04    in 300     --ml     Wasser werden bei 1200 der Einwirkung von       Sauerstoff    unter 10 Atmosphären unter Rüh  ren ausgesetzt. Die Oxydation zu dreiwerti  gem Eisen ist vollständig.  



  <I>Beispiel 2:</I>  10     gr        Ferroacetat    werden in Eisessigsäure  gelöst und 2 Stunden lang auf<B>1100</B> C un  ter einem Sauerstoffdruck von 10 Atmosphären  erhitzt. Es bildet sich     Ferriacetat    in guter  Ausbeute, das auf üblichem Wege isoliert  werden kann.



  Process for converting metal salts into those with a higher oxidation state. There are various means of converting metal salts to higher levels of oxidation, such as electrolysis, oxidation with nitrogen oxides, chlorine, etc.



  It is also known that dissolved metal salts of a lower oxidation state slowly convert into salts of a higher oxidation state through the action of atmospheric oxygen.



  It has now been found that with up to 100% oxygen-containing gases at pressures above 1 atmosphere at temperatures above <B> 100 '</B> metal salts in solution can technically be completely converted into higher oxidation stages. The oxidation can take place in a neutral, acidic or alkaline solution, depending on the nature of the salt. The increased temperature causes a 1 "<1 conversion, especially when the solution is stirred.



  It is possible to work both in aqueous and non-aqueous, as well as in a mixture of aqueous and richly aqueous solutions. <I> Example 1: </I> 25 gr FeSU4.7HE0 (divalent iron and 2 1 / s cm 'concentrated H2S04 in 300 ml water are exposed to the action of oxygen under 10 atmospheres with stirring at 1200. The oxidation too trivalent iron is complete.



  <I> Example 2: </I> 10 g of ferroacetate are dissolved in glacial acetic acid and heated for 2 hours at <B> 1100 </B> C under an oxygen pressure of 10 atmospheres. Ferriacetate is formed in good yield and can be isolated in the usual way.

 

Claims (1)

PATENTANSPRUCH: Verfahren zur Überführung von gelösten Metallsalzen in solche von höherer Oxyda- tionsstufe durch Behandlung mit bis zu 100 % sauerstoffhaltigen Gasen, dadurch gekenn zeichnet, dass mau die Behandlung bei Tem peraturen oberhalb 100 0 und bei einem Druck vorn über 1 Atmosphäre vornimmt. PATENT CLAIM: Process for converting dissolved metal salts into those of a higher oxidation stage by treatment with up to 100% oxygen-containing gases, characterized in that the treatment is carried out at temperatures above 100 0 and at a pressure above 1 atmosphere.
CH137466D 1927-05-13 1928-05-10 Process for converting metal salts into those with a higher oxidation state. CH137466A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE137466X 1927-05-13

Publications (1)

Publication Number Publication Date
CH137466A true CH137466A (en) 1930-01-15

Family

ID=5666844

Family Applications (1)

Application Number Title Priority Date Filing Date
CH137466D CH137466A (en) 1927-05-13 1928-05-10 Process for converting metal salts into those with a higher oxidation state.

Country Status (1)

Country Link
CH (1) CH137466A (en)

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