JPS54118400A - Preparation of silicon dioxide - Google Patents
Preparation of silicon dioxideInfo
- Publication number
- JPS54118400A JPS54118400A JP2495578A JP2495578A JPS54118400A JP S54118400 A JPS54118400 A JP S54118400A JP 2495578 A JP2495578 A JP 2495578A JP 2495578 A JP2495578 A JP 2495578A JP S54118400 A JPS54118400 A JP S54118400A
- Authority
- JP
- Japan
- Prior art keywords
- mineral acid
- silicon dioxide
- contacted
- preparation
- calcium silicate
- 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
Abstract
PURPOSE: A specific calcium silicate is contacted with a mineral acid to remove calcium component, thereby to provide a plate-type, laminar silica having oringinal material configuration.
CONSTITUTION: Gyrolite calcium silicate having SiO2/CaO molar ratio of 1.4 to 1.55 is contacted with mineral acid to extract and to remove calcium component, obtaining silicon dioxide. As mineral acid, HCL, HNO3, H3PO4 are effectively used in concentration, equivalent to pH 4 or less, or more preferably, pH 1.3 to 3.0. The reaction temperature is in the range of 10 to 100°C, generally room temperature being sufficient. The reaction time of 30 minutes to 3 hours are normally satisfactory.
COPYRIGHT: (C)1979,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2495578A JPS54118400A (en) | 1978-03-07 | 1978-03-07 | Preparation of silicon dioxide |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2495578A JPS54118400A (en) | 1978-03-07 | 1978-03-07 | Preparation of silicon dioxide |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS54118400A true JPS54118400A (en) | 1979-09-13 |
Family
ID=12152400
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2495578A Pending JPS54118400A (en) | 1978-03-07 | 1978-03-07 | Preparation of silicon dioxide |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS54118400A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001106522A (en) * | 1999-10-08 | 2001-04-17 | Fuji Chem Ind Co Ltd | Acid-treated calcium silicate particle and its producing method |
JP2006306702A (en) * | 2005-03-31 | 2006-11-09 | National Institute Of Advanced Industrial & Technology | Method for producing thin plate-like silica porous material |
-
1978
- 1978-03-07 JP JP2495578A patent/JPS54118400A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001106522A (en) * | 1999-10-08 | 2001-04-17 | Fuji Chem Ind Co Ltd | Acid-treated calcium silicate particle and its producing method |
JP2006306702A (en) * | 2005-03-31 | 2006-11-09 | National Institute Of Advanced Industrial & Technology | Method for producing thin plate-like silica porous material |
JP4613348B2 (en) * | 2005-03-31 | 2011-01-19 | 独立行政法人産業技術総合研究所 | Method for producing thin plate-like porous silica |
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