JPS5490100A - Method of producing silicasol - Google Patents
Method of producing silicasolInfo
- Publication number
- JPS5490100A JPS5490100A JP15786677A JP15786677A JPS5490100A JP S5490100 A JPS5490100 A JP S5490100A JP 15786677 A JP15786677 A JP 15786677A JP 15786677 A JP15786677 A JP 15786677A JP S5490100 A JPS5490100 A JP S5490100A
- Authority
- JP
- Japan
- Prior art keywords
- alkaline silicate
- solution
- acid
- reaction system
- alkali
- 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.)
- Pending
Links
Landscapes
- Silicon Compounds (AREA)
Abstract
PURPOSE: To produce a stable silica sol with the growth of the particles exceeding a specified size in the coexistence of a salt by-product by adding alkaline silicate and acid gradually into a solution of alkali or an alkaline silicate with the reaction system maintained at a temperature higher than a prescribed level to reduce pH to a specified range.
CONSTITUTION: Alkaline silicate and acid such as sulfuric acid are added gradually into a solution of alkali such as NaOH or an inexpensive alkaline silicate such as grade 3 water glass (herein after called as repaired solution) with the reaction system maintained at a temperature high than 60°C to reduce pH of the system to the range of 8 to 11. A mixed liquid of alkaline silicate and acid with pH of 1 to 4 can be added to the repaired solution. Colloidal particles in the reaction system grows up to more than 7 mμ regardless of the existence of a salt by-product. The silica sol thus obtained is stable and easy of the post-treatment.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15786677A JPS5490100A (en) | 1977-12-28 | 1977-12-28 | Method of producing silicasol |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15786677A JPS5490100A (en) | 1977-12-28 | 1977-12-28 | Method of producing silicasol |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5490100A true JPS5490100A (en) | 1979-07-17 |
Family
ID=15659099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15786677A Pending JPS5490100A (en) | 1977-12-28 | 1977-12-28 | Method of producing silicasol |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5490100A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8097127B2 (en) * | 2006-09-27 | 2012-01-17 | Basf Se | Siliceous composition and its use in papermaking |
| CN103739010A (en) * | 2014-01-07 | 2014-04-23 | 中国科学院过程工程研究所 | Method for deep desilication in acid system by silica sol |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233899A (en) * | 1975-09-11 | 1977-03-15 | Shokubai Kasei Kogyo Kk | Process for production of silica sol |
-
1977
- 1977-12-28 JP JP15786677A patent/JPS5490100A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5233899A (en) * | 1975-09-11 | 1977-03-15 | Shokubai Kasei Kogyo Kk | Process for production of silica sol |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8097127B2 (en) * | 2006-09-27 | 2012-01-17 | Basf Se | Siliceous composition and its use in papermaking |
| CN103739010A (en) * | 2014-01-07 | 2014-04-23 | 中国科学院过程工程研究所 | Method for deep desilication in acid system by silica sol |
| CN103739010B (en) * | 2014-01-07 | 2015-08-19 | 中国科学院过程工程研究所 | A kind of method utilizing silicon sol deep desilication in acid system |
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