DE356507C - Process for the electrolytic oxidation of mercury in soda solution - Google Patents
Process for the electrolytic oxidation of mercury in soda solutionInfo
- Publication number
- DE356507C DE356507C DEC27645D DEC0027645D DE356507C DE 356507 C DE356507 C DE 356507C DE C27645 D DEC27645 D DE C27645D DE C0027645 D DEC0027645 D DE C0027645D DE 356507 C DE356507 C DE 356507C
- Authority
- DE
- Germany
- Prior art keywords
- mercury
- soda solution
- electrolytic oxidation
- percent
- soda
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G13/00—Compounds of mercury
- C01G13/02—Oxides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
- Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)
Description
Verfahren zur elektrolytischen Oxydation von Quecksilber in Sodalösung. Es ist bekannt, Quecksilber durch elektrolytische Oxydation unter Anwendung von Sodalösung in Quecksilberoxyd zu überführen. Die Stromausbeute beträgt bei Verwendung von gewöhnlicher reiner Soda dabei nicht mehr als etwa 8o Prozent.Process for the electrolytic oxidation of mercury in soda solution. It is known to use mercury by electrolytic oxidation To convert soda solution into mercury oxide. The current yield is when using of ordinary pure soda no more than about 80 percent.
Wir haben nun die Feststellung gemacht, daß der Kochsalzgehalt der Sodalösung die Stromausbeute in eigentümlicher Weise beeinflußt.We have now made the determination that the salt content of the Soda solution affects the current yield in a peculiar way.
Während mit chemisch reiner Sodalösung eine fast theoretische Stromausbeute erzielt wird, sinkt diese mit steigendem Kochsalzzusatz zur Lösung, um bei etwa 0,03 Prozent ein Minimum zu erreichen und dann wieder bis zum theoretischen Werte anzusteigen. Da gewöhnliche Soda durchschnittlich gegen o,5 Prozent Kochsalz enthält, so bewegt sich der Kochsalzgehalt damit hergestellter Lösungen, wenn man mit einer etwa 5 bis 8prozentigen Lösung - der üblichen Konzentration - arbeitet, in der Nähe von o,o3 Prozent und damit auch die Stromausbeute um den Minimalwert.While an almost theoretical current yield is achieved with chemically pure soda solution, this decreases with increasing addition of sodium chloride to the solution, reaching a minimum at around 0.03 percent and then increasing again to the theoretical value. Since ordinary soda contains an average of 0.5 percent table salt, the table salt content of solutions produced with it, if you work with a 5 to 8 percent solution - the usual concentration - is close to 0.03 percent and thus also the current yield around the minimum value.
Es ergab sich also durch diese Erkenntnisse als vorteilhafte Arbeitsweise die Anwendung einer Kochsalzkonzentration unter o,o2 oder über o,o8 Prozent. Da man praktisch auf die Verwendung gewöhnlicher Soda angewiesen ist, wird man am besten mit Kochsalzgehalten oberhalb des Minimums arbeiten. Man kann statt Kochsalz auch andere Halogensalze verwenden.So it emerged from this knowledge as an advantageous way of working the use of a saline concentration below 0.02 or above 0.08 percent. There if one is practically dependent on the use of ordinary soda, one will be best work with table salt contents above the minimum. You can also use table salt instead use other halogen salts.
Beispiel: Man verwendet eine 7prozentige Sodalösung unter Zusatz von o,i Prozent Kochsalz und arbeitet bei 6o° mit einer Stromdichte von o,2 Amp. auf den Quadratzentimeter Quecksilberoberfläche. Die Stromausbeute (berechnet auf Quecksilberoxyd) ist nahezu ioo Prozent.Example: A 7 percent soda solution is used with the addition of 0.1 percent table salt and works at 60 ° with a current density of 0.2 amps the square centimeter of mercury surface. The current yield (calculated on mercury oxide) is almost 100 percent.
Das Verfahren soll besonders für die Regenerierung des für die Darstellung von Acetaldehyd aus Acetylen verwendeten Quecksilberoxyds aus dem bei diesem Prozeß anfallenden metallischen Quecksilber angewandt werden. Die Sodalösung kann auch einen geringen Ätzalkaligehalt aufweisen.The method is intended especially for the regeneration of the for the display of acetaldehyde from acetylene from the mercury oxide used in this process accumulating metallic mercury can be applied. The soda solution can too have a low caustic alkali content.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC27645D DE356507C (en) | 1918-05-03 | 1918-05-03 | Process for the electrolytic oxidation of mercury in soda solution |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DEC27645D DE356507C (en) | 1918-05-03 | 1918-05-03 | Process for the electrolytic oxidation of mercury in soda solution |
Publications (1)
Publication Number | Publication Date |
---|---|
DE356507C true DE356507C (en) | 1922-07-22 |
Family
ID=7018412
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DEC27645D Expired DE356507C (en) | 1918-05-03 | 1918-05-03 | Process for the electrolytic oxidation of mercury in soda solution |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE356507C (en) |
-
1918
- 1918-05-03 DE DEC27645D patent/DE356507C/en not_active Expired
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