JPS57175724A - Preparation of high purity ceramic powder - Google Patents
Preparation of high purity ceramic powderInfo
- Publication number
- JPS57175724A JPS57175724A JP56060627A JP6062781A JPS57175724A JP S57175724 A JPS57175724 A JP S57175724A JP 56060627 A JP56060627 A JP 56060627A JP 6062781 A JP6062781 A JP 6062781A JP S57175724 A JPS57175724 A JP S57175724A
- Authority
- JP
- Japan
- Prior art keywords
- alkoxide
- high purity
- aluminum silicate
- solution
- purity ceramic
- 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.)
- Granted
Links
Landscapes
- Silicates, Zeolites, And Molecular Sieves (AREA)
- Compositions Of Oxide Ceramics (AREA)
Abstract
PURPOSE: To prepare high purity ceramic powder such as fine aluminum silicate powder, by adjusting the pH of a solution of Al alkoxide or an Al salt and Si alkoxide in a nonaqueous solution in two stages, i.e. acidic and then basic, thereby hydrolyzing the compounds.
CONSTITUTION: The alkoxide of formulaIor an Al salt and the alkoxide of formula II are pretreated so as to afford the produced aluminum silicate to take a mullite structure, and then dissolved in a nonaqueous solvent (e.g. ethanol). The pH of the solution is adjusted to ≤5, especially ≤2 by adding hydrochloric acid, etc., and then to ≥8, especially to ≥10 by slowly adding ammonia water. Hydrolysis and gelatinization take place by the pH adjustment forming aluminum silicate. The product is washed with water or an alcohol, dried, and again heated to about 600°C to obtain the objective fine powder of high purity ceramic. The compound of formulaIis e.g. Al(OCH3)3, and that of the formula II is, e.g. Si(OC2H5)4.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56060627A JPS6052083B2 (en) | 1981-04-23 | 1981-04-23 | Manufacturing method of high purity ceramic powder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP56060627A JPS6052083B2 (en) | 1981-04-23 | 1981-04-23 | Manufacturing method of high purity ceramic powder |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57175724A true JPS57175724A (en) | 1982-10-28 |
JPS6052083B2 JPS6052083B2 (en) | 1985-11-18 |
Family
ID=13147721
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP56060627A Expired JPS6052083B2 (en) | 1981-04-23 | 1981-04-23 | Manufacturing method of high purity ceramic powder |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6052083B2 (en) |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2527589A1 (en) * | 1982-05-25 | 1983-12-02 | Gen Electric | METHOD FOR MANUFACTURING OPTICALLY TRANSLUCENT POLYCRYSTALLINE MULLITE BODY AND OPTICALLY TRANSLUCENT MULLITE BODY |
FR2527590A1 (en) * | 1982-05-25 | 1983-12-02 | Gen Electric | PROCESS FOR PRODUCING OPTICALLY TRANSLUCENT POLYCRYSTALLINE MULLITE BODY AND BODY OBTAINED |
JPS60215569A (en) * | 1984-04-09 | 1985-10-28 | 富士通株式会社 | Manufacture of glass-ceramic composite substrate |
JPS61275163A (en) * | 1985-05-30 | 1986-12-05 | 美濃窯業株式会社 | Manufacture of high temperature strength alumina silica baseceramic sintered body |
JPS61286264A (en) * | 1985-06-11 | 1986-12-16 | 株式会社ニッカト− | Furnace center pipe for heating furnace and manufacture |
JPS6252169A (en) * | 1985-08-27 | 1987-03-06 | 東ソー株式会社 | Manufacture of mullite base sintered body |
JPS6256356A (en) * | 1985-09-04 | 1987-03-12 | 株式会社ノリタケカンパニーリミテド | Manufacture of mullite sintered body |
JPS62108765A (en) * | 1985-11-08 | 1987-05-20 | 株式会社神戸製鋼所 | Manufacture of tough ceramic material |
JPS6389455A (en) * | 1986-10-01 | 1988-04-20 | 東レ株式会社 | Mullite sintered body |
JPS63159254A (en) * | 1986-12-23 | 1988-07-02 | 株式会社ニッカト− | Manufacture of mullite base electric insulating material |
JPS63265859A (en) * | 1987-04-23 | 1988-11-02 | Agency Of Ind Science & Technol | Ceramics insulating material |
JPH03247557A (en) * | 1985-05-30 | 1991-11-05 | Agency Of Ind Science & Technol | Production of alumina-silica-based ceramic sintered body excellent in high-temperature strength |
US5731261A (en) * | 1995-06-01 | 1998-03-24 | Enichem S.P.A. | Process for the preparation of mixed porous silica-alumina oxides in a spherical form |
JP2009280423A (en) * | 2008-05-20 | 2009-12-03 | National Institute Of Advanced Industrial & Technology | Aluminum silicate that regularly arranges water molecule, and method for synthesizing the same |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS63114064U (en) * | 1987-01-19 | 1988-07-22 | ||
JPS63115237U (en) * | 1987-01-22 | 1988-07-25 |
-
1981
- 1981-04-23 JP JP56060627A patent/JPS6052083B2/en not_active Expired
Cited By (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2527590A1 (en) * | 1982-05-25 | 1983-12-02 | Gen Electric | PROCESS FOR PRODUCING OPTICALLY TRANSLUCENT POLYCRYSTALLINE MULLITE BODY AND BODY OBTAINED |
FR2527589A1 (en) * | 1982-05-25 | 1983-12-02 | Gen Electric | METHOD FOR MANUFACTURING OPTICALLY TRANSLUCENT POLYCRYSTALLINE MULLITE BODY AND OPTICALLY TRANSLUCENT MULLITE BODY |
JPS60215569A (en) * | 1984-04-09 | 1985-10-28 | 富士通株式会社 | Manufacture of glass-ceramic composite substrate |
JPH03247557A (en) * | 1985-05-30 | 1991-11-05 | Agency Of Ind Science & Technol | Production of alumina-silica-based ceramic sintered body excellent in high-temperature strength |
JPS61275163A (en) * | 1985-05-30 | 1986-12-05 | 美濃窯業株式会社 | Manufacture of high temperature strength alumina silica baseceramic sintered body |
JPS61286264A (en) * | 1985-06-11 | 1986-12-16 | 株式会社ニッカト− | Furnace center pipe for heating furnace and manufacture |
JPH0345031B2 (en) * | 1985-06-11 | 1991-07-09 | Nippon Kagaku Togyo Kk | |
JPS6252169A (en) * | 1985-08-27 | 1987-03-06 | 東ソー株式会社 | Manufacture of mullite base sintered body |
JPS6256356A (en) * | 1985-09-04 | 1987-03-12 | 株式会社ノリタケカンパニーリミテド | Manufacture of mullite sintered body |
JPS62108765A (en) * | 1985-11-08 | 1987-05-20 | 株式会社神戸製鋼所 | Manufacture of tough ceramic material |
JPH0422864B2 (en) * | 1985-11-08 | 1992-04-20 | Kobe Steel Ltd | |
JPS6389455A (en) * | 1986-10-01 | 1988-04-20 | 東レ株式会社 | Mullite sintered body |
JPS63159254A (en) * | 1986-12-23 | 1988-07-02 | 株式会社ニッカト− | Manufacture of mullite base electric insulating material |
JPS63265859A (en) * | 1987-04-23 | 1988-11-02 | Agency Of Ind Science & Technol | Ceramics insulating material |
US5731261A (en) * | 1995-06-01 | 1998-03-24 | Enichem S.P.A. | Process for the preparation of mixed porous silica-alumina oxides in a spherical form |
JP2009280423A (en) * | 2008-05-20 | 2009-12-03 | National Institute Of Advanced Industrial & Technology | Aluminum silicate that regularly arranges water molecule, and method for synthesizing the same |
Also Published As
Publication number | Publication date |
---|---|
JPS6052083B2 (en) | 1985-11-18 |
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