GB305022A - A process for the manufacture of porous bodies, more particularly of diaphragms for electro-osmotic purposes - Google Patents
A process for the manufacture of porous bodies, more particularly of diaphragms for electro-osmotic purposesInfo
- Publication number
- GB305022A GB305022A GB1072/29A GB107229A GB305022A GB 305022 A GB305022 A GB 305022A GB 1072/29 A GB1072/29 A GB 1072/29A GB 107229 A GB107229 A GB 107229A GB 305022 A GB305022 A GB 305022A
- Authority
- GB
- United Kingdom
- Prior art keywords
- added
- mass
- per cent
- partially
- mixture
- 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
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25B—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR
- C25B13/00—Diaphragms; Spacing elements
- C25B13/04—Diaphragms; Spacing elements characterised by the material
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Primary Cells (AREA)
Abstract
305,022. Siemens & Halske Akt.- Ges. Jan. 28, 1928, [Convention date]. Porous compositions.-Porous bodies, particularly electrolytic diaphragms, are produced by partially setting a silicate or other similar acid- and alkali-proof substance, grinding the mass to a suitable size of grain and then compressing or moulding it. The mass may be heated, if necessary. Suitable substances may be added to control the passage of ions, fo example, metallic oxides may be added if the diaphragm is to be used as an anode. To increase the porosity, naphthalene or a similar substance may be added to the partially set mixture and subsequently burnt out. As an example, a mixture comprising 40 gr. of aluminium oxide and 20 grains of an alkali silicate and silicates of metals of the alkaline earth group or aluminium, is allowed partially to set and is then ground. If the mass is compressed to a plate at a pressure of 200 atmospheres, a pore volume of about 30 per cent is obtained. If an equal amount of chromium oxide is added to the above mixture together with 10 per cent naphthalene and the compressed plates are burnt out, a pore volume of 36 per cent is obtained.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE305022X | 1928-01-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB305022A true GB305022A (en) | 1930-04-10 |
Family
ID=6120658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1072/29A Expired GB305022A (en) | 1928-01-28 | 1929-01-11 | A process for the manufacture of porous bodies, more particularly of diaphragms for electro-osmotic purposes |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB305022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3248311A (en) * | 1962-03-29 | 1966-04-26 | Ethyl Corp | Manufacture of sodium |
| FR2357663A1 (en) * | 1976-07-09 | 1978-02-03 | Basf Ag | ELECTROLYSIS CELL |
-
1929
- 1929-01-11 GB GB1072/29A patent/GB305022A/en not_active Expired
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3248311A (en) * | 1962-03-29 | 1966-04-26 | Ethyl Corp | Manufacture of sodium |
| FR2357663A1 (en) * | 1976-07-09 | 1978-02-03 | Basf Ag | ELECTROLYSIS CELL |
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