GB790093A - Alkaline earth metal titanates - Google Patents
Alkaline earth metal titanatesInfo
- Publication number
- GB790093A GB790093A GB9351/56A GB935156A GB790093A GB 790093 A GB790093 A GB 790093A GB 9351/56 A GB9351/56 A GB 9351/56A GB 935156 A GB935156 A GB 935156A GB 790093 A GB790093 A GB 790093A
- Authority
- GB
- United Kingdom
- Prior art keywords
- earth metal
- alkaline earth
- precipitate
- solution
- titanium
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G23/00—Compounds of titanium
- C01G23/003—Titanates
- C01G23/006—Alkaline earth titanates
-
- 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
- C01P2004/62—Submicrometer sized, i.e. from 0.1-1 micrometer
-
- 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
- C01P2004/64—Nanometer sized, i.e. from 1-100 nanometer
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Organic Chemistry (AREA)
- Nanotechnology (AREA)
- General Physics & Mathematics (AREA)
- Inorganic Chemistry (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Composite Materials (AREA)
- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Life Sciences & Earth Sciences (AREA)
- Materials Engineering (AREA)
- Crystallography & Structural Chemistry (AREA)
- Geology (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Finely divided alkaline earth metal titanates are prepared by coprecipitating equimolar amounts of an alkaline earth metal compound and a titanium compound at a pH of 8, separating, drying and calcining the precipitate. In the preferred practice of the invention, a solution of barium, calcium, magnesium or strontium chloride and of titanium tetrachloride is mixed with a solution of ammonium hydroxide and ammonium carbonate to coprecipitate an alkaline earth metal carbonate and titanium hydroxide, the precipitate is washed to remove chloride ions, dried at 70-250 DEG C. for 30-90 mins. and calcined at 1300-1750 DEG F. In one example, the ammonium compounds solution was prepared with a mixture of water and methyl alcohol to facilitate separation of the precipitate; in another example, the washed precipitate was repulped with water and digested for an hour at the boiling point before separating &c. After light crushing, the products are said to have a particle size below 0.5 m , often below 0.1 m .
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US790093XA | 1955-10-13 | 1955-10-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB790093A true GB790093A (en) | 1958-02-05 |
Family
ID=22147762
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB9351/56A Expired GB790093A (en) | 1955-10-13 | 1956-03-26 | Alkaline earth metal titanates |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB790093A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3528919A (en) * | 1965-04-01 | 1970-09-15 | Canadian Patents Dev | Electronic ceramic compositions |
| US3725539A (en) * | 1971-04-28 | 1973-04-03 | Dow Chemical Co | Preparation of alkaline earth metal titanate |
| EP0141551A1 (en) * | 1983-10-12 | 1985-05-15 | Asahi Kasei Kogyo Kabushiki Kaisha | Titanate powder and process for producing the same |
| EP0255193A2 (en) * | 1986-06-30 | 1988-02-03 | Ferro Corporation | Method of producing alkaline-earth metal titanates in powder form |
| US4829033A (en) * | 1986-05-05 | 1989-05-09 | Cabot Corporation | Barium titanate powders |
| US4863883A (en) * | 1986-05-05 | 1989-09-05 | Cabot Corporation | Doped BaTiO3 based compositions |
-
1956
- 1956-03-26 GB GB9351/56A patent/GB790093A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3528919A (en) * | 1965-04-01 | 1970-09-15 | Canadian Patents Dev | Electronic ceramic compositions |
| US3725539A (en) * | 1971-04-28 | 1973-04-03 | Dow Chemical Co | Preparation of alkaline earth metal titanate |
| EP0141551A1 (en) * | 1983-10-12 | 1985-05-15 | Asahi Kasei Kogyo Kabushiki Kaisha | Titanate powder and process for producing the same |
| US4829033A (en) * | 1986-05-05 | 1989-05-09 | Cabot Corporation | Barium titanate powders |
| US4863883A (en) * | 1986-05-05 | 1989-09-05 | Cabot Corporation | Doped BaTiO3 based compositions |
| EP0255193A2 (en) * | 1986-06-30 | 1988-02-03 | Ferro Corporation | Method of producing alkaline-earth metal titanates in powder form |
| EP0255193A3 (en) * | 1986-06-30 | 1988-09-07 | Ferro Corporation | Method of producing alkaline-earth metal titanates in powder form |
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