JPS56149309A - Manufacture of catalyst for synthesizing ketazine - Google Patents
Manufacture of catalyst for synthesizing ketazineInfo
- Publication number
- JPS56149309A JPS56149309A JP5241080A JP5241080A JPS56149309A JP S56149309 A JPS56149309 A JP S56149309A JP 5241080 A JP5241080 A JP 5241080A JP 5241080 A JP5241080 A JP 5241080A JP S56149309 A JPS56149309 A JP S56149309A
- Authority
- JP
- Japan
- Prior art keywords
- catalyst
- gel
- ketazine
- silicic acid
- 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
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Silicon Compounds (AREA)
Abstract
PURPOSE: To enhance the catalytic activity and selectivity of silica gel catalyst for synthesizing ketazine from ketone, ammonia and peroxide by preparing the catalyst by gelling in a specified acidic liq.
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 at 10W100°C in an acidic region of <6pH to form silicic acid gel. The gel is filtered, washed, peptized, dried at 150°C, and further dried at 180°C in a vacuum to obtain silica gel catalyst with superior catalytic characteristics and selectivity. The catalyst is used in the synthesis of ketazine from ketone, ammonia and peroxide.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5241080A JPS56149309A (en) | 1980-04-22 | 1980-04-22 | Manufacture of catalyst for synthesizing ketazine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5241080A JPS56149309A (en) | 1980-04-22 | 1980-04-22 | Manufacture of catalyst for synthesizing ketazine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS56149309A true JPS56149309A (en) | 1981-11-19 |
Family
ID=12914008
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5241080A Pending JPS56149309A (en) | 1980-04-22 | 1980-04-22 | Manufacture of catalyst for synthesizing ketazine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS56149309A (en) |
-
1980
- 1980-04-22 JP JP5241080A patent/JPS56149309A/en active Pending
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