NL66897C - - Google Patents
Info
- Publication number
- NL66897C NL66897C NL125139A NL125139A NL66897C NL 66897 C NL66897 C NL 66897C NL 125139 A NL125139 A NL 125139A NL 125139 A NL125139 A NL 125139A NL 66897 C NL66897 C NL 66897C
- Authority
- NL
- Netherlands
Links
Classifications
-
- 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
- C01F7/54—Double compounds containing both aluminium and alkali metals or alkaline-earth metals
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Inorganic Chemistry (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Management, Administration, Business Operations System, And Electronic Commerce (AREA)
- Silicon Compounds (AREA)
- Manufacture And Refinement Of Metals (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NO621569X | 1941-02-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL66897C true NL66897C (de) | 1950-11-16 |
Family
ID=32232807
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL125139A NL66897C (de) | 1941-02-11 | 1946-05-03 |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US2592113A (de) |
| CH (1) | CH254797A (de) |
| DE (1) | DE825541C (de) |
| FR (2) | FR913189A (de) |
| GB (1) | GB621569A (de) |
| NL (1) | NL66897C (de) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH319303A (de) * | 1952-11-26 | 1957-02-15 | Vaw Ver Aluminium Werke Ag | Verfahren zur Rückgewinnung von Kryolith aus dem Kohleboden von Elektrolyseöfen |
| DE1036827B (de) * | 1953-03-14 | 1958-08-21 | Paul August Franz Baeumert | Verfahren zur Gewinnung von Fluorverbindungen aus fluorhaltigen Rohstoffen, insbesondere aus Fluormineralien |
| DE957027C (de) * | 1953-11-17 | 1957-01-31 | Vaw Ver Aluminium Werke Ag | Verfahren zur Herstellung von Kryolith |
| GB888844A (en) * | 1957-08-28 | 1962-02-07 | Paul August Franz Baumert | Process for obtaining fluorine compounds |
| DE1154078B (de) * | 1960-03-03 | 1963-09-12 | Sicedison Spa | Verfahren zur Herstellung von technisch reinem kuenstlichem Kryolith auf trockenem Wege |
| US3359066A (en) * | 1961-07-27 | 1967-12-19 | Eastman Kodak Co | Calcium fluoride optical elements and method for making same |
| US3206279A (en) * | 1961-09-18 | 1965-09-14 | Eastman Kodak Co | Lanthanum fluoride infrared transmitting optical elements |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US447063A (en) * | 1891-02-24 | Engelbert richters | ||
| US400766A (en) * | 1889-04-02 | Process of reducing aluminium by electrolysis | ||
| US1091795A (en) * | 1913-06-06 | 1914-03-31 | Moritz Eyssell | Process of purifying fluorspar. |
| US1634122A (en) * | 1921-10-08 | 1927-06-28 | Little Inc A | Method of producing sodium fluoride |
| US1871723A (en) * | 1929-05-29 | 1932-08-16 | Aluminum Co Of America | Process for the recovery of cryolite |
| US1891608A (en) * | 1929-12-26 | 1932-12-20 | Electric Smelting & Aluminum C | Process of producing alumina |
| US2182509A (en) * | 1937-05-24 | 1939-12-05 | Aluminum Co Of America | Production of double fluorides of alkali metals and aluminum |
| US2196077A (en) * | 1937-06-25 | 1940-04-02 | Aluminum Co Of America | Method of producing sodium aluminum fluoride |
| US2210594A (en) * | 1938-01-06 | 1940-08-06 | Aluminum Co Of America | Insecticide and method of producing same |
| US2328846A (en) * | 1942-08-17 | 1943-09-07 | Standard Oil Co | Catalytic conversion process |
| US2365702A (en) * | 1944-03-06 | 1944-12-26 | Tennessee Valley Authority | Extracting alumina |
-
1943
- 1943-07-27 FR FR913189D patent/FR913189A/fr not_active Expired
- 1943-10-13 FR FR914132D patent/FR914132A/fr not_active Expired
- 1943-12-24 CH CH254797D patent/CH254797A/de unknown
-
1945
- 1945-11-15 US US628976A patent/US2592113A/en not_active Expired - Lifetime
- 1945-11-15 US US628977A patent/US2547901A/en not_active Expired - Lifetime
-
1946
- 1946-05-01 GB GB13185/46A patent/GB621569A/en not_active Expired
- 1946-05-03 NL NL125139A patent/NL66897C/xx active
-
1950
- 1950-05-27 DE DEA1734A patent/DE825541C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR914132A (fr) | 1946-09-30 |
| FR913189A (fr) | 1946-08-30 |
| US2592113A (en) | 1952-04-08 |
| CH254797A (de) | 1948-05-31 |
| DE825541C (de) | 1951-12-20 |
| GB621569A (en) | 1949-04-12 |
| US2547901A (en) | 1951-04-03 |