JPS57167956A - Continuous preparation of guanidine sulfamate - Google Patents

Continuous preparation of guanidine sulfamate

Info

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
Application number
JP5369981A
Other languages
Japanese (ja)
Inventor
Ryoji Takahashi
Koji Inoue
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JNC Corp
Original Assignee
Chisso Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Chisso Corp filed Critical Chisso Corp
Priority to JP5369981A priority Critical patent/JPS57167956A/en
Publication of JPS57167956A publication Critical patent/JPS57167956A/en
Pending legal-status Critical Current

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  • 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
JP5369981A 1981-04-09 1981-04-09 Continuous preparation of guanidine sulfamate Pending JPS57167956A (en)

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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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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