US1792633A - Production of compounds containing active oxygen - Google Patents
Production of compounds containing active oxygen Download PDFInfo
- Publication number
- US1792633A US1792633A US360608A US36060829A US1792633A US 1792633 A US1792633 A US 1792633A US 360608 A US360608 A US 360608A US 36060829 A US36060829 A US 36060829A US 1792633 A US1792633 A US 1792633A
- Authority
- US
- United States
- Prior art keywords
- active oxygen
- compounds containing
- containing active
- production
- mercury
- 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 - Lifetime
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B11/00—Electrodes; Manufacture thereof not otherwise provided for
- C25B11/04—Electrodes; Manufacture thereof not otherwise provided for characterised by the material
- C25B11/042—Electrodes formed of a single material
- C25B11/045—Mercury or amalgam
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B1/00—Electrolytic production of inorganic compounds or non-metals
- C25B1/01—Products
- C25B1/28—Per-compounds
- C25B1/30—Peroxides
Definitions
- the present invention relates to the electrolytic production of compounds containing active oxygen.
- this process can be carried out in a particularly advantageous manner when maintaining, during electrolysis, the electrolyte saturated with a mercury compound which is difiicultly soluble in water.
- a mercury compound which is difiicultly soluble in water.
- this mercury compound should be present in the electrolyte as the solid phase.
- Suitable mercury compounds are for example mercury salts, such as mercury sulphates or phosphates. It is often very advantageous to employ the mercurous salt of the acid present in the electrolyte, but in other cases it may be preferable to employ mercury compounds which are still more difficultly soluble.
- the step which comprises maintaining the electrolyte saturated with a mercurous salt.
- Example Ari aqueous phosphoric acid solution of-l I per cent strength is subjected to electrolysis by means'of an amalgamated silver cathode,
Description
Patented Feb. 17, 1931.
umre STATES r'rENr OFFICE JOHANNES ECKELL, OF LUDWIGSHAFEN-O1\T-THE-RHINE, I GERMANY, ASSIGNOR TO I. G. FARBENINDUSTRIE AKTIENGESELLSGHAFT, OF FRANKFOBT-ON-THE-MAIN, GER-MANY, A CORPORATION OF GERMANY PRODUCTION OF COMPOUNDS CONTAINING ACTIVE OXYGEN No Drawing. Application filed May 4, 1929, Serial No. 360,608, and in Germany June 7, 1928.
The present invention relates to the electrolytic production of compounds containing active oxygen.
It has been suggested elsewhere to produce such compounds by means of amalgamated cathodes, and in order to avoid reduction of the activity of the cathodes, it has been recommended to Wet the cathodes either continuously or intermittently during the operation with mercury.
I have now found that this process can be carried out in a particularly advantageous manner when maintaining, during electrolysis, the electrolyte saturated with a mercury compound which is difiicultly soluble in water. Preferably this mercury compound should be present in the electrolyte as the solid phase. The presence of such mercury compound constitutes a very simple method of maintaining the cathode Wetted with mercury. Suitable mercury compounds are for example mercury salts, such as mercury sulphates or phosphates. It is often very advantageous to employ the mercurous salt of the acid present in the electrolyte, but in other cases it may be preferable to employ mercury compounds which are still more difficultly soluble.
3. In the electrolytic production of compounds containing active oxygen by means of an amalgamated cathode, the step which comprises maintaining the electrolyte saturated with a mercurous salt.
4. In the electrolytic production of compounds containing active oxygen by means of an. amalgamated cathode, the step which comprises maintaining the electrolyte saturated With mercurous phosphate.
5. In the electrolytic production of hydrogen peroxide by means of-an amalgamated cathode, the step which comprises maintaining the electrolyte saturated with mercurous phosphate. I I g In testimony whereof I have hereunto set my hand, a I
JOHANNES ECKELL.
The following example will further illus hate how my. invention may be carried out in practice, but the invention is,not' limited to this example. 7.
Example Ari aqueous phosphoric acid solution of-l I per cent strength is subjected to electrolysis by means'of an amalgamated silver cathode,
" while passing through a current-of oxygen.
Mercurous phosphate is continuously present in the electrolyteas the solid phase. Under these conditions, the yield of hydrogen peroxide'obtained after continuous operation for 4 weeks is the same as that originally obtained, Whereasin the absence of mercurous phosphate or other dilficultly soluble mercury compound the formation of hydrogen peroxide wouldcease after one week.
What I claim is I 1. In the electrolytic production of compounds containing active oxygen by means of
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI34604D DE485714C (en) | 1927-07-11 | 1928-06-07 | Manufacture of compounds containing active oxygen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US1792633A true US1792633A (en) | 1931-02-17 |
Family
ID=33004400
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US360608A Expired - Lifetime US1792633A (en) | 1928-06-07 | 1929-05-04 | Production of compounds containing active oxygen |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US1792633A (en) |
-
1929
- 1929-05-04 US US360608A patent/US1792633A/en not_active Expired - Lifetime
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