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.Info
- 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
Links
Landscapes
- 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)
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) |
-
1928
- 1928-05-10 CH CH137466D patent/CH137466A/en unknown
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