NL221774A - - Google Patents
Info
- Publication number
- NL221774A NL221774A NL221774DA NL221774A NL 221774 A NL221774 A NL 221774A NL 221774D A NL221774D A NL 221774DA NL 221774 A NL221774 A NL 221774A
- 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
- C01F7/02—Aluminium oxide; Aluminium hydroxide; Aluminates
- C01F7/46—Purification of aluminium oxide, aluminium hydroxide or aluminates
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/60—Compounds characterised by their crystallite size
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/60—Particles characterised by their size
- C01P2004/61—Micrometer sized, i.e. from 1-100 micrometer
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)
- Treating Waste Gases (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US617946A US2887361A (en) | 1956-10-24 | 1956-10-24 | Purification of alumina |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL221774A true NL221774A (xx) |
Family
ID=24475709
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL221774D NL221774A (xx) | 1956-10-24 | ||
| NL112899D NL112899C (xx) | 1956-10-24 |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL112899D NL112899C (xx) | 1956-10-24 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US2887361A (xx) |
| CH (1) | CH372647A (xx) |
| DE (1) | DE1112055B (xx) |
| FR (1) | FR1184744A (xx) |
| GB (1) | GB864009A (xx) |
| NL (2) | NL112899C (xx) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL112432C (xx) * | 1956-10-24 | |||
| US3092453A (en) * | 1959-08-18 | 1963-06-04 | Aluminum Co Of America | Production of low-soda alumina |
| US3106452A (en) * | 1960-05-18 | 1963-10-08 | Reynolds Metals Co | Method for reducing the soda content of alumina |
| US3402024A (en) * | 1963-11-22 | 1968-09-17 | Army Usa | Method of treating alumina |
| GB1046582A (en) * | 1964-03-04 | 1966-10-26 | Gen Motors Ltd | Improved method of producing alumina |
| US3262754A (en) * | 1964-12-07 | 1966-07-26 | Aluminium Lab Ltd | Method of making low soda alumina of small crystal size |
| US3443894A (en) * | 1966-08-30 | 1969-05-13 | Aluminum Co Of America | Process for producing kappa alumina |
| US3950507A (en) * | 1974-03-19 | 1976-04-13 | Boreskov Georgy Konstantinovic | Method for producing granulated porous corundum |
| DE2419277C3 (de) * | 1974-04-22 | 1982-10-21 | Institut Kataliza Sibirskogo Otdelenija Akademii Nauk Sssr | Verfahren zur Herstellung von granuliertem porigen Korund |
| CH654819A5 (de) * | 1980-09-23 | 1986-03-14 | Alusuisse | Verfahren zur herstellung von grobkristallinem alpha-aluminiumoxid und dessen verwendung. |
| DE3212297C2 (de) * | 1982-03-29 | 1984-12-13 | Schweizerische Aluminium Ag, Chippis | Verfahren zur Herstellung grobkristalliner Tonerde |
| DE3371194D1 (en) * | 1982-08-24 | 1987-06-04 | Alusuisse | Process for the preparation of crystalline aluminium oxide |
| JP3875952B2 (ja) * | 2000-10-20 | 2007-01-31 | 昭和電工株式会社 | 低ソーダアルミナの製造装置及び製造方法 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE165612C (xx) * | ||||
| CA462193A (en) * | 1950-01-03 | Henry Riesmeyer August | Treatment of alumina | |
| US1036454A (en) * | 1912-06-04 | 1912-08-20 | David H Childs | Process of producing alumina. |
| US2069060A (en) * | 1935-12-14 | 1937-01-26 | Gen Motors Corp | Alkali-free ceramic materials and method of making same |
| CH217476A (de) * | 1939-11-25 | 1941-10-31 | Aluminium Ind Ag | Verfahren zur Gewinnung von Natriumaluminat aus Alkalialuminiumsilikaten. |
| US2752301A (en) * | 1951-03-07 | 1956-06-26 | Walter M Weil | Recovery of chromium and iron values from chromium-iron ores |
-
0
- NL NL221774D patent/NL221774A/xx unknown
- NL NL112899D patent/NL112899C/xx active
-
1956
- 1956-10-24 US US617946A patent/US2887361A/en not_active Expired - Lifetime
-
1957
- 1957-10-04 GB GB31127/57A patent/GB864009A/en not_active Expired
- 1957-10-07 FR FR1184744D patent/FR1184744A/fr not_active Expired
- 1957-10-10 DE DEA28077A patent/DE1112055B/de active Pending
- 1957-10-17 CH CH5168957A patent/CH372647A/fr unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US2887361A (en) | 1959-05-19 |
| DE1112055B (de) | 1961-08-03 |
| GB864009A (en) | 1961-03-29 |
| NL112899C (xx) | |
| CH372647A (fr) | 1963-10-31 |
| FR1184744A (fr) | 1959-07-24 |