JPS56149310A - Manufacture of silica gel catalyst - Google Patents
Manufacture of silica gel catalystInfo
- Publication number
- JPS56149310A JPS56149310A JP5241180A JP5241180A JPS56149310A JP S56149310 A JPS56149310 A JP S56149310A JP 5241180 A JP5241180 A JP 5241180A JP 5241180 A JP5241180 A JP 5241180A JP S56149310 A JPS56149310 A JP S56149310A
- Authority
- JP
- Japan
- Prior art keywords
- silica gel
- gel
- silicic acid
- catalyst
- acid
- 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)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To enhance the yield of synthesis of ketazine from ketone, ammonia and peroxide by using silica gel catalyst prepared by gelling in the presence of a gelling accelerator and calcination at a specified temp.
CONSTITUTION: An aqueous soln. of sodium silicate is neutralized with acid, silicon tetrachloride is hydrolyzed in an aqueous soln., or silicic acid ester is hydrolyzed in the presence of acid or alkali as catalyst. The resulting silicic acid or its polycondensate is allowed to gel in the presence of alkali metallic salt or ammonium salt of fluorine and their acidic salt as a gelling accelerator to form silicic acid gel. The gel is filtered, washed, dried at 150°C, and finally calcined at 150W600°C. When the silica gel catalyst thus obtd. is used in the synthesis of ketazine, the yield is enhanced.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5241180A JPS56149310A (en) | 1980-04-22 | 1980-04-22 | Manufacture of silica gel catalyst |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5241180A JPS56149310A (en) | 1980-04-22 | 1980-04-22 | Manufacture of silica gel catalyst |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56149310A true JPS56149310A (en) | 1981-11-19 |
Family
ID=12914036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5241180A Pending JPS56149310A (en) | 1980-04-22 | 1980-04-22 | Manufacture of silica gel catalyst |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56149310A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60191016A (en) * | 1984-03-12 | 1985-09-28 | Nippon Chem Ind Co Ltd:The | High-purity silica and its manufacture |
-
1980
- 1980-04-22 JP JP5241180A patent/JPS56149310A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60191016A (en) * | 1984-03-12 | 1985-09-28 | Nippon Chem Ind Co Ltd:The | High-purity silica and its manufacture |
JPH05339B2 (en) * | 1984-03-12 | 1993-01-05 | Nippon Chemical Ind |
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