JPS57167956A - Continuous preparation of guanidine sulfamate - Google Patents
Continuous preparation of guanidine sulfamateInfo
- Publication number
- JPS57167956A JPS57167956A JP5369981A JP5369981A JPS57167956A JP S57167956 A JPS57167956 A JP S57167956A JP 5369981 A JP5369981 A JP 5369981A JP 5369981 A JP5369981 A JP 5369981A JP S57167956 A JPS57167956 A JP S57167956A
- Authority
- JP
- Japan
- Prior art keywords
- ammonia
- reaction
- dicyanodiamide
- reactor
- carried out
- 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
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
PURPOSE: To prepare the titled compound useful as a flame retardant, in a short step, without side reactions, in high quality, economically, by reacting sulfamic acid with dicyanodiamide continuously in the presence of ammonia.
CONSTITUTION: The molten mother liquid for the reaction of sulfamic acid, dicyanodiamide and ammonia is prepared in the first reactor, and the first stage reaction is carried out under melting and mixing, by feeding sulfamic acid, dicyanodiamide and ammonia continuously to the reactor. The reaction liquid is transferred continuously to the second reactor, and the second stage reaction is carried out by feeding and contacting ammonia to the reaction mixture. The supply of ammonia is adjusted to maintain the pH at preferably ≥7, and the reaction is carried out at 120W200°C to obtain the objective compound by single operation.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5369981A JPS57167956A (en) | 1981-04-09 | 1981-04-09 | Continuous preparation of guanidine sulfamate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5369981A JPS57167956A (en) | 1981-04-09 | 1981-04-09 | Continuous preparation of guanidine sulfamate |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57167956A true JPS57167956A (en) | 1982-10-16 |
Family
ID=12950057
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5369981A Pending JPS57167956A (en) | 1981-04-09 | 1981-04-09 | Continuous preparation of guanidine sulfamate |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57167956A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102304065A (en) * | 2011-04-29 | 2012-01-04 | 苏州市吴赣药业有限公司 | Process for producing guanidine nitrate |
-
1981
- 1981-04-09 JP JP5369981A patent/JPS57167956A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102304065A (en) * | 2011-04-29 | 2012-01-04 | 苏州市吴赣药业有限公司 | Process for producing guanidine nitrate |
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