JPH022807B2 - - Google Patents
Info
- Publication number
- JPH022807B2 JPH022807B2 JP59244400A JP24440084A JPH022807B2 JP H022807 B2 JPH022807 B2 JP H022807B2 JP 59244400 A JP59244400 A JP 59244400A JP 24440084 A JP24440084 A JP 24440084A JP H022807 B2 JPH022807 B2 JP H022807B2
- Authority
- JP
- Japan
- Prior art keywords
- alumina
- ultrafine
- particles
- temperature
- particle size
- 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
- C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
- C01F7/441—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by calcination
-
- 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
- C01F7/44—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water
- C01F7/447—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by wet processes
- C01F7/448—Dehydration of aluminium oxide or hydroxide, i.e. all conversions of one form into another involving a loss of water by wet processes using superatmospheric pressure, e.g. hydrothermal conversion of gibbsite into boehmite
-
- 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
- C01F7/56—Chlorides
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)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59244400A JPS61127619A (ja) | 1984-11-21 | 1984-11-21 | 超微粒α−アルミナの製造方法 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP59244400A JPS61127619A (ja) | 1984-11-21 | 1984-11-21 | 超微粒α−アルミナの製造方法 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61127619A JPS61127619A (ja) | 1986-06-14 |
| JPH022807B2 true JPH022807B2 (OSRAM) | 1990-01-19 |
Family
ID=17118104
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP59244400A Granted JPS61127619A (ja) | 1984-11-21 | 1984-11-21 | 超微粒α−アルミナの製造方法 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61127619A (OSRAM) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4109264A1 (de) * | 1991-03-21 | 1992-09-24 | Schepers Bernhard H Dr | Verfahren zum herstellen von aluminiumoxid zum schleifen und/oder polieren aus aluminiumhydroxid |
| US5334366A (en) * | 1993-01-07 | 1994-08-02 | Aluminum Company Of America | Transition alumina and method for its production |
-
1984
- 1984-11-21 JP JP59244400A patent/JPS61127619A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS61127619A (ja) | 1986-06-14 |
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