GB1151654A - Electrolytic Cells - Google Patents
Electrolytic CellsInfo
- Publication number
- GB1151654A GB1151654A GB106045/67A GB10604567A GB1151654A GB 1151654 A GB1151654 A GB 1151654A GB 106045/67 A GB106045/67 A GB 106045/67A GB 10604567 A GB10604567 A GB 10604567A GB 1151654 A GB1151654 A GB 1151654A
- Authority
- GB
- United Kingdom
- Prior art keywords
- core
- skin
- diaphragm
- electrolyte
- insulating
- 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
- 239000003792 electrolyte Substances 0.000 abstract 4
- 239000000203 mixture Substances 0.000 abstract 3
- 125000006850 spacer group Chemical group 0.000 abstract 3
- 229910000831 Steel Inorganic materials 0.000 abstract 2
- 238000004663 powder metallurgy Methods 0.000 abstract 2
- 239000010959 steel Substances 0.000 abstract 2
- 229910018072 Al 2 O 3 Inorganic materials 0.000 abstract 1
- 229910000838 Al alloy Inorganic materials 0.000 abstract 1
- 229910021364 Al-Si alloy Inorganic materials 0.000 abstract 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 229910004298 SiO 2 Inorganic materials 0.000 abstract 1
- 229910000323 aluminium silicate Inorganic materials 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- HNPSIPDUKPIQMN-UHFFFAOYSA-N dioxosilane;oxo(oxoalumanyloxy)alumane Chemical compound O=[Si]=O.O=[Al]O[Al]=O HNPSIPDUKPIQMN-UHFFFAOYSA-N 0.000 abstract 1
- 229910002804 graphite Inorganic materials 0.000 abstract 1
- 239000010439 graphite Substances 0.000 abstract 1
- 238000011065 in-situ storage Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 abstract 1
- 238000003780 insertion Methods 0.000 abstract 1
- 238000005121 nitriding Methods 0.000 abstract 1
- 239000002245 particle Substances 0.000 abstract 1
- 239000012254 powdered material Substances 0.000 abstract 1
- 150000003839 salts Chemical class 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/005—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells of cells for the electrolysis of melts
-
- C—CHEMISTRY; METALLURGY
- C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C7/00—Constructional parts, or assemblies thereof, of cells; Servicing or operating of cells
- C25C7/04—Diaphragms; Spacing elements
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Ceramic Products (AREA)
- Electrolytic Production Of Metals (AREA)
- Manufacture Of Alloys Or Alloy Compounds (AREA)
Abstract
1,151,654. Fused electrolyte cell; powder metallurgy. E.I. DU PONT DE NEMOURS & CO. April 7, 1967 [April 8, 1966], No. 16045/67. Headings C7B and C7D. A fused electrolyte cell e.g. a "Downs" cell for producing Na and Cl comprises at least one insulating spacer body positioned within the fused salt electrolyte e.g. of Na Cl to locate the conductive diaphragm between the anode and cathode and prevent physical contact therewith, the body comprising a core of AlN e.g. 20-85%, Si 3 N 4 e.g. 5-70% and/or Si e.g. 10-40%, and an insulating skin inert towards the electrolyte. The body may be formed by powder metallurgy using powdered materials of particle size less than 150 microns. The skin may be of the same composition as and homogeneous with the core, e.g. of A1N and/or Si 3 N 4 , or of alumino-silicate (reaction product of sintered Al 2 O 3 +SiO 2 ). The core may be formed by reacting e.g. at 700-1700C. a pressurecompacted e.g. at 5000-60000 p.s.i. mixture comprising finely divided Al and Si 3 N 4 so that the core contains at least 20% A1N formed in situ; the body composition may thus also contain dispersed Al or Al-Si alloy and the skin made insulating by nitriding e.g. at 900-1700C. in N 2 or cracked NH 3 . A single ring-shaped spacer body may be affixed to one of the electrodes opposite the bottom of the diaphragm. Preferably as shown, a plurality of spacer bodies e.g. disc rollers 6 are fixedly attached e.g. by brackets 7 around the bottom of a cylindrical perforate steel diaphragm 1 to facilitate its insertion into and withdrawal from the annular space between the vertical cylindrical inner graphite anode 13 and outer steel cathode 12.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US54116566A | 1966-04-08 | 1966-04-08 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1151654A true GB1151654A (en) | 1969-05-14 |
Family
ID=24158443
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB106045/67A Expired GB1151654A (en) | 1966-04-08 | 1967-04-07 | Electrolytic Cells |
Country Status (4)
Country | Link |
---|---|
US (1) | US3432421A (en) |
CH (1) | CH504895A (en) |
DE (1) | DE1558756B2 (en) |
GB (1) | GB1151654A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001068947A1 (en) * | 2000-03-15 | 2001-09-20 | E.I. Du Pont De Nemours And Company | Electrolyte and diaphragm for fused salt electrolysis |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6063247A (en) * | 1998-08-07 | 2000-05-16 | E.I. Du Pont De Nemours And Company | Modified electrolyte and diaphragm for fused salt electrolysis |
US20100032221A1 (en) * | 2008-08-07 | 2010-02-11 | Charles Robert Storey | Electrolysis system for hydrogen and oxygen production |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2361974A (en) * | 1940-02-07 | 1944-11-07 | John A Rietmann | Electrolytic cell |
US2618565A (en) * | 1948-02-26 | 1952-11-18 | Carborundum Co | Manufacture of silicon nitride-bonded articles |
US2929126A (en) * | 1956-04-19 | 1960-03-22 | Electro Chimie Metal | Process of making molded aluminum nitride articles |
US3041690A (en) * | 1956-12-31 | 1962-07-03 | Hughes Aircraft Co | Processing semiconductor material |
US2924558A (en) * | 1958-06-25 | 1960-02-09 | Du Pont | Fused salt electrolysis |
US3108887A (en) * | 1959-05-06 | 1963-10-29 | Carborundum Co | Refractory articles and method of making same |
CH404012A (en) * | 1962-03-05 | 1965-12-15 | Elektrokemisk As | Arrangement for power supply in a furnace for the melt-electrolytic production of aluminum |
US3216916A (en) * | 1962-11-13 | 1965-11-09 | Continental Oil Co | Anodic passivation of wetted wall vessels |
-
1966
- 1966-04-08 US US541165A patent/US3432421A/en not_active Expired - Lifetime
-
1967
- 1967-04-07 CH CH496067A patent/CH504895A/en not_active IP Right Cessation
- 1967-04-07 DE DE19671558756 patent/DE1558756B2/en active Pending
- 1967-04-07 GB GB106045/67A patent/GB1151654A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2001068947A1 (en) * | 2000-03-15 | 2001-09-20 | E.I. Du Pont De Nemours And Company | Electrolyte and diaphragm for fused salt electrolysis |
Also Published As
Publication number | Publication date |
---|---|
DE1558756A1 (en) | 1972-01-20 |
DE1558756B2 (en) | 1972-01-20 |
CH504895A (en) | 1971-03-31 |
US3432421A (en) | 1969-03-11 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |