AT32286B - Process for the preparation of persulfates by electrolysis. - Google Patents
Process for the preparation of persulfates by electrolysis.Info
- Publication number
- AT32286B AT32286B AT32286DA AT32286B AT 32286 B AT32286 B AT 32286B AT 32286D A AT32286D A AT 32286DA AT 32286 B AT32286 B AT 32286B
- Authority
- AT
- Austria
- Prior art keywords
- persulfates
- electrolysis
- preparation
- potential
- addition
- Prior art date
Links
- JRKICGRDRMAZLK-UHFFFAOYSA-L persulfate group Chemical group S(=O)(=O)([O-])OOS(=O)(=O)[O-] JRKICGRDRMAZLK-UHFFFAOYSA-L 0.000 title claims description 6
- 238000005868 electrolysis reaction Methods 0.000 title claims description 4
- 238000002360 preparation method Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 3
- 150000003839 salts Chemical class 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims 1
- XTEGARKTQYYJKE-UHFFFAOYSA-N chloric acid Chemical compound OCl(=O)=O XTEGARKTQYYJKE-UHFFFAOYSA-N 0.000 claims 1
- 229940005991 chloric acid Drugs 0.000 claims 1
- 239000003792 electrolyte Substances 0.000 claims 1
- 229910052760 oxygen Inorganic materials 0.000 claims 1
- 239000001301 oxygen Substances 0.000 claims 1
- 150000003467 sulfuric acid derivatives Chemical class 0.000 claims 1
- 230000000694 effects Effects 0.000 description 3
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 230000000996 additive effect Effects 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000005518 electrochemistry Effects 0.000 description 2
- 150000002222 fluorine compounds Chemical class 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 1
- QAOWNCQODCNURD-UHFFFAOYSA-L Sulfate Chemical compound [O-]S([O-])(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-L 0.000 description 1
- ZCDOYSPFYFSLEW-UHFFFAOYSA-N chromate(2-) Chemical compound [O-][Cr]([O-])(=O)=O ZCDOYSPFYFSLEW-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- WBHQBSYUUJJSRZ-UHFFFAOYSA-M sodium bisulfate Chemical compound [Na+].OS([O-])(=O)=O WBHQBSYUUJJSRZ-UHFFFAOYSA-M 0.000 description 1
- 229910000342 sodium bisulfate Inorganic materials 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229910021653 sulphate ion Inorganic materials 0.000 description 1
Landscapes
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Description
<Desc/Clms Page number 1>
Verfahren zur Darstellung von Persulfaten durch Elektrolyse.
Es ist bekannt, dass man bei der elektrolytischen Darstellung der Persulfate die Stromausbeuten durch Zusatz von Fluorverbindungen wesentlich erhöhen kann (D. R. P.
Nr. 1558U5). Weitere Versuche haben ergeben, dass die Wirkung dieses Zusatzes auf einer Erhöhung des Anodenpotentiales beruht, und dass alle Verbindungen, welche potential- erhöhend wirken, auch in gleicher Weise dio Stromausbeuten an Persulfat verbessern. Es ist gelungen, ausser den Fluorverbindungen auch noch andere derartig wirkende Stoffe ausfindig zu machen
Das Verhalten aller solcher Ionen charakterisiert sich folgendermassen : Wie Foerster und Mül1er (Zeitschrift fUr Elektrochemie 8, 1902, S. 515) klargelegt haben, steigt das Potential eines mit konstanter Stromdichte, z. B. in Schwefelsäure anodisch polarisierten Platinbleches mit der Zeit an, bis zu einem nahezu konstant bleibenden Werte.
Gibt man
EMI1.1
plötzlich das Inod (inpotential tu noch höheren Werten an. Indem dadurch die Anode in einen oxydationsfabigeren Zustand versetzt wird, ist sie geeignet, auch die l'ersulfatbildung zu begünstigen.
Bei der elektrolytischen Erzeugung freier l'berschwefelsälre ist durch Elbs eino
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feston Zustande gewinnen.
Durch Zusatz der ebgenannten potentialerhöhenden Substanzen gelingt die Abscheidung
EMI1.3
billiger Weise in festem Zustande herzustellen.
Beispiel.
Bei der Elüktroiyse einer an Natriumbisulfat und Natriumporsuifat gesiittigten Lösung
EMI1.4
<Desc/Clms Page number 2>
Ein Chromatzusatz bewirkt ausser der anodischen Potentialerhöhung auch noch die Bildung eines Chromhydroxyditberzuges auf der Kathode und vermindert dadurch die kathodische Reduktion. Diese Wirkungsweise ist schon von Müller und Friedberger (Zeitschrift für Elektrochemie 8, S. 236) beobachtet und daher der genannte Zusatz von ihnen zur Erhöhung der Persulfatausbeuten benutzt worden.
<Desc / Clms Page number 1>
Process for the preparation of persulfates by electrolysis.
It is known that in the electrolytic preparation of persulfates, the current yields can be increased significantly by adding fluorine compounds (D. R. P.
No. 1558U5). Further tests have shown that the effect of this additive is based on an increase in the anode potential, and that all compounds which have a potential-increasing effect also improve the current yields of persulfate in the same way. In addition to the fluorine compounds, we have succeeded in finding other substances that have such an effect
The behavior of all such ions is characterized as follows: As Foerster and Mül1er (Zeitschrift für Elektrochemie 8, 1902, p. 515) have made clear, the potential of a constant current density, e.g. B. in sulfuric acid anodically polarized platinum sheet over time, up to a value that remains almost constant.
To give
EMI1.1
Suddenly the inod (inpotential tends to show higher values. By thereby placing the anode in a more oxidative state, it is also suitable for promoting the formation of sulphate.
In the electrolytic production of free sulphurous salts, Elbs is a
EMI1.2
win feston conditions.
The addition of the aforementioned potential-increasing substances enables the separation
EMI1.3
cheaper to manufacture in a solid state.
Example.
In the electrolysis of a solution saturated in sodium bisulfate and sodium sulfate
EMI1.4
<Desc / Clms Page number 2>
In addition to increasing the anodic potential, the addition of chromate also causes the formation of a chromium hydroxydite coating on the cathode and thereby reduces the cathodic reduction. This mode of action has already been observed by Müller and Friedberger (Zeitschrift für Elektrochemie 8, p. 236) and therefore the additive mentioned was used by them to increase the persulfate yield.
Claims (1)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE170311D | 1904-08-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AT32286B true AT32286B (en) | 1908-03-26 |
Family
ID=5688292
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT32286D AT32286B (en) | 1904-08-27 | 1906-02-23 | Process for the preparation of persulfates by electrolysis. |
Country Status (1)
| Country | Link |
|---|---|
| AT (1) | AT32286B (en) |
-
1906
- 1906-02-23 AT AT32286D patent/AT32286B/en active
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