GB248360A - Improvements in or relating to the treatment of metallic oxides - Google Patents
Improvements in or relating to the treatment of metallic oxidesInfo
- Publication number
- GB248360A GB248360A GB4472/26A GB447226A GB248360A GB 248360 A GB248360 A GB 248360A GB 4472/26 A GB4472/26 A GB 4472/26A GB 447226 A GB447226 A GB 447226A GB 248360 A GB248360 A GB 248360A
- Authority
- GB
- United Kingdom
- Prior art keywords
- alumina
- carbon
- relating
- treatment
- globules
- 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
- 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
- C01F—COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS
- C01F5/00—Compounds of magnesium
- C01F5/02—Magnesia
-
- 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
- C01F7/021—After-treatment of oxides or hydroxides
- C01F7/027—Treatment involving fusion or vaporisation
-
- 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
- C01F7/38—Preparation of aluminium oxide by thermal reduction of aluminous minerals
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/30—Particle morphology extending in three dimensions
- C01P2004/32—Spheres
- C01P2004/34—Spheres hollow
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Inorganic Chemistry (AREA)
- Geology (AREA)
- Physics & Mathematics (AREA)
- Geochemistry & Mineralogy (AREA)
- Thermal Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Plasma & Fusion (AREA)
- Compounds Of Alkaline-Earth Elements, Aluminum Or Rare-Earth Metals (AREA)
- Crystals, And After-Treatments Of Crystals (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
248,360. Aluminum Co. of America, (Assignees of Horsfield, B. T.). March 2, 1925, [Convention date]. Abrading and sharpening compositions.- Alumina is converted into hollow globules and purified by injecting a gas at high velocity into a stream of the molten oxide. A crude material such as clay or bauxite may be melted with enough carbon to reduce the iron, titanium, and silicon to an alloy and leave a small excess of carbon, say 1 per cent, in the alumina, the alumina being then treated with a jet of air or steam as above described. The excess of carbon is oxidized, leaving the alumina globules substantially pure. The globular product may be used as an abrasive.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12617A US1871792A (en) | 1925-03-02 | 1925-03-02 | Treatment of metallic oxides |
| US73094A US1798261A (en) | 1925-12-04 | 1925-12-04 | Purifying alumina |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB248360A true GB248360A (en) | 1927-04-21 |
Family
ID=26683789
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4472/26A Expired GB248360A (en) | 1925-03-02 | 1926-02-16 | Improvements in or relating to the treatment of metallic oxides |
Country Status (2)
| Country | Link |
|---|---|
| DE (2) | DE528462C (en) |
| GB (1) | GB248360A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE939377C (en) * | 1950-05-20 | 1956-06-21 | Degussa | Process for the production of abrasive bodies with porous grain |
-
1926
- 1926-02-13 DE DEA47017D patent/DE528462C/en not_active Expired
- 1926-02-16 GB GB4472/26A patent/GB248360A/en not_active Expired
- 1926-11-19 DE DEA49286D patent/DE537894C/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE528462C (en) | 1931-06-29 |
| DE537894C (en) | 1931-11-07 |
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