JPS5580715A - Production of amorphous silica hydrate - Google Patents
Production of amorphous silica hydrateInfo
- Publication number
- JPS5580715A JPS5580715A JP15200078A JP15200078A JPS5580715A JP S5580715 A JPS5580715 A JP S5580715A JP 15200078 A JP15200078 A JP 15200078A JP 15200078 A JP15200078 A JP 15200078A JP S5580715 A JPS5580715 A JP S5580715A
- Authority
- JP
- Japan
- Prior art keywords
- amorphous silica
- alkalihydrate
- calcium silicate
- silica hydrate
- hydrate
- 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
- Silicon Compounds (AREA)
Abstract
PURPOSE: To produce amorphous silica hydrate similar to crystalline calcium silicate hydrate in form by contacting specified crystalline calcium silicate alkalihydrate to a mineral acid.
CONSTITUTION: Not less than 58% SiO2-contg. crystalline calcium silicate alkalihydrate is dipped in an aq. soln. of a mineral acid such as hydrochloric acid or nitric acid of pH≤ about 4, pref. about 1.3W3.0 and treated at about 10W100°C for about 30minW3hr to extract the alkali and the calcium. The resulting amorphous silica hydrate is separated, washed with water, and dried. The above alkalihydrate used is in the form of fiber of about 50W300μ length and about 50W200 aspect ratio or of mica of about 5W50μ width and about less than 0.1M thickness.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15200078A JPS5580715A (en) | 1978-12-11 | 1978-12-11 | Production of amorphous silica hydrate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15200078A JPS5580715A (en) | 1978-12-11 | 1978-12-11 | Production of amorphous silica hydrate |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP14324979A Division JPS5585414A (en) | 1979-11-07 | 1979-11-07 | Amorphous silica hydrate |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS5580715A true JPS5580715A (en) | 1980-06-18 |
JPS6129887B2 JPS6129887B2 (en) | 1986-07-10 |
Family
ID=15530869
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15200078A Granted JPS5580715A (en) | 1978-12-11 | 1978-12-11 | Production of amorphous silica hydrate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5580715A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999050179A1 (en) * | 1998-03-27 | 1999-10-07 | Otsuka Chemical Co., Ltd. | Conductive powder ad transparent conductive composition |
-
1978
- 1978-12-11 JP JP15200078A patent/JPS5580715A/en active Granted
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO1999050179A1 (en) * | 1998-03-27 | 1999-10-07 | Otsuka Chemical Co., Ltd. | Conductive powder ad transparent conductive composition |
Also Published As
Publication number | Publication date |
---|---|
JPS6129887B2 (en) | 1986-07-10 |
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