GB1449837A - Process for producing an alf3-containing additive - Google Patents
Process for producing an alf3-containing additiveInfo
- Publication number
- GB1449837A GB1449837A GB5733973A GB5733973A GB1449837A GB 1449837 A GB1449837 A GB 1449837A GB 5733973 A GB5733973 A GB 5733973A GB 5733973 A GB5733973 A GB 5733973A GB 1449837 A GB1449837 A GB 1449837A
- Authority
- GB
- United Kingdom
- Prior art keywords
- mixture
- aluminium
- producing
- alf
- dec
- 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
- C25C—PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR
- C25C3/00—Electrolytic production, recovery or refining of metals by electrolysis of melts
- C25C3/06—Electrolytic production, recovery or refining of metals by electrolysis of melts of aluminium
- C25C3/18—Electrolytes
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B7/00—Halogens; Halogen acids
- C01B7/19—Fluorine; Hydrogen fluoride
- C01B7/191—Hydrogen fluoride
- C01B7/192—Preparation from fluorspar
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F7/00—Compounds of aluminium
- C01F7/48—Halides, with or without other cations besides aluminium
- C01F7/50—Fluorides
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Electrochemistry (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Electrolytic Production Of Metals (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Manufacture And Refinement Of Metals (AREA)
- Silicon Compounds (AREA)
- Glass Compositions (AREA)
Abstract
1449837 Aluminium trifluoride/aluminium oxide mixture ELKEM-SPIGERVERKET AS 11 Dec 1973 [12 Dec 1972] 57339/73 Heading C1A A process for producing an AlF 3 -containing additive suitable for use in melt electrolytic production of aluminium comprises agglomerating a mixture comprising finely divided fluorspar and silica dust which has been precipitated from the smoke from a metallurgical process for the production of metallic silicon or a silicon-rich alloy, treating the thus-formed agglomerates with a gas/steam mixture at a temperature above 1000 C., and reacting the liberated HF gas with Al 2 O 3 to form a mixture of AlF 3 and Al 2 O 3 suitable for use as an additive in melt electrolytic production of aluminium. The agglomerate is preferably of a size suitable for use in a fluidized bed.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NO457572 | 1972-12-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1449837A true GB1449837A (en) | 1976-09-15 |
Family
ID=19880432
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5733973A Expired GB1449837A (en) | 1972-12-12 | 1973-12-11 | Process for producing an alf3-containing additive |
Country Status (16)
Country | Link |
---|---|
JP (1) | JPS4989699A (en) |
BE (1) | BE808517A (en) |
BR (1) | BR7309669D0 (en) |
CA (1) | CA1032334A (en) |
CH (1) | CH598362A5 (en) |
CS (1) | CS197229B2 (en) |
DE (1) | DE2361589A1 (en) |
EG (1) | EG11198A (en) |
ES (1) | ES420918A1 (en) |
FR (1) | FR2209720B1 (en) |
GB (1) | GB1449837A (en) |
HU (1) | HU166988B (en) |
IN (1) | IN140244B (en) |
IT (1) | IT1001660B (en) |
NL (1) | NL7316879A (en) |
YU (1) | YU36544B (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3116971A (en) * | 1961-02-07 | 1964-01-07 | Reynolds Metals Co | Method for the concurrent production of alkali metal aluminate and hydrogen fluoride |
-
1973
- 1973-11-07 IT IT31032/73A patent/IT1001660B/en active
- 1973-11-13 CH CH1595073A patent/CH598362A5/xx not_active IP Right Cessation
- 1973-11-14 YU YU02941/73A patent/YU36544B/en unknown
- 1973-11-21 HU HUEE2189A patent/HU166988B/hu unknown
- 1973-11-21 JP JP48130300A patent/JPS4989699A/ja active Pending
- 1973-11-28 ES ES420918A patent/ES420918A1/en not_active Expired
- 1973-11-30 FR FR7342902A patent/FR2209720B1/fr not_active Expired
- 1973-12-09 EG EG467/73A patent/EG11198A/en active
- 1973-12-10 NL NL7316879A patent/NL7316879A/xx unknown
- 1973-12-10 IN IN2685/CAL/73A patent/IN140244B/en unknown
- 1973-12-10 BR BR9669/73A patent/BR7309669D0/en unknown
- 1973-12-11 GB GB5733973A patent/GB1449837A/en not_active Expired
- 1973-12-11 DE DE2361589A patent/DE2361589A1/en not_active Withdrawn
- 1973-12-11 CA CA187,892A patent/CA1032334A/en not_active Expired
- 1973-12-11 BE BE138769A patent/BE808517A/en not_active IP Right Cessation
- 1973-12-12 CS CS738604A patent/CS197229B2/en unknown
Also Published As
Publication number | Publication date |
---|---|
EG11198A (en) | 1978-06-30 |
CA1032334A (en) | 1978-06-06 |
CH598362A5 (en) | 1978-04-28 |
BE808517A (en) | 1974-03-29 |
YU36544B (en) | 1984-02-29 |
IT1001660B (en) | 1976-04-30 |
FR2209720B1 (en) | 1976-11-19 |
NL7316879A (en) | 1974-06-14 |
BR7309669D0 (en) | 1974-08-29 |
DE2361589A1 (en) | 1974-06-20 |
JPS4989699A (en) | 1974-08-27 |
YU294173A (en) | 1982-02-25 |
AU6339773A (en) | 1975-06-12 |
IN140244B (en) | 1976-10-02 |
HU166988B (en) | 1975-07-28 |
FR2209720A1 (en) | 1974-07-05 |
CS197229B2 (en) | 1980-04-30 |
ES420918A1 (en) | 1976-04-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |