JPS5650112A - Obtaining method for high molar ratio sodium silicate together with mullite or higher alumina material from clay or high alumina starting material containing clays - Google Patents
Obtaining method for high molar ratio sodium silicate together with mullite or higher alumina material from clay or high alumina starting material containing claysInfo
- Publication number
- JPS5650112A JPS5650112A JP12400579A JP12400579A JPS5650112A JP S5650112 A JPS5650112 A JP S5650112A JP 12400579 A JP12400579 A JP 12400579A JP 12400579 A JP12400579 A JP 12400579A JP S5650112 A JPS5650112 A JP S5650112A
- Authority
- JP
- Japan
- Prior art keywords
- molar ratio
- mullite
- sodium silicate
- starting material
- clays
- 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)
Abstract
PURPOSE: To obtain mullite useful as refractory starting material or an Al alloy, high molar ratio sodium silicate and a high alumina material by adding a specified amount of an NaOH soln. to calcined and pulverized clays followed by pressurization.
CONSTITUTION: Clays such as kaolinite and halloysite or clays-contg. starting material such as diaspore, white bauxite or aluminous shale is calcined at 1,000W 1,300°C and pulverized, and an NaOH soln. of ≥30% concn. is added so that the ratio of SiO2:Na2O is adjusted to 2:1 or more, preferably about 3 to about 2/3 of silicic acid contained. The soln.-added pulverized material is then pressurized at ≥130°C in an autoclave and filtered to obtain molar ratio sodium silicate having an SiO2/Na2O molar ratio of ≥2 or about 3 as well as muillite (3Al2O3.2SiO2) or a mullite-contg. high alumina material as the residue.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12400579A JPS5650112A (en) | 1979-09-28 | 1979-09-28 | Obtaining method for high molar ratio sodium silicate together with mullite or higher alumina material from clay or high alumina starting material containing clays |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12400579A JPS5650112A (en) | 1979-09-28 | 1979-09-28 | Obtaining method for high molar ratio sodium silicate together with mullite or higher alumina material from clay or high alumina starting material containing clays |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5650112A true JPS5650112A (en) | 1981-05-07 |
JPS6247810B2 JPS6247810B2 (en) | 1987-10-09 |
Family
ID=14874668
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12400579A Granted JPS5650112A (en) | 1979-09-28 | 1979-09-28 | Obtaining method for high molar ratio sodium silicate together with mullite or higher alumina material from clay or high alumina starting material containing clays |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5650112A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5939253U (en) * | 1982-09-07 | 1984-03-13 | 本田技研工業株式会社 | Fuel oil supply system for new cars |
CN110342555A (en) * | 2019-08-22 | 2019-10-18 | 湖南绿脉环保科技有限公司 | A method of aluminium oxide is produced containing kaolinic mineral |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4844161A (en) * | 1971-10-11 | 1973-06-25 |
-
1979
- 1979-09-28 JP JP12400579A patent/JPS5650112A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS4844161A (en) * | 1971-10-11 | 1973-06-25 |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5939253U (en) * | 1982-09-07 | 1984-03-13 | 本田技研工業株式会社 | Fuel oil supply system for new cars |
CN110342555A (en) * | 2019-08-22 | 2019-10-18 | 湖南绿脉环保科技有限公司 | A method of aluminium oxide is produced containing kaolinic mineral |
Also Published As
Publication number | Publication date |
---|---|
JPS6247810B2 (en) | 1987-10-09 |
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