ES429144A1 - Nitroguanidine from dicyandiamide by sulphonation then nitration - using above 85 percent sulphuric acid for sulphonation - Google Patents

Nitroguanidine from dicyandiamide by sulphonation then nitration - using above 85 percent sulphuric acid for sulphonation

Info

Publication number
ES429144A1
ES429144A1 ES429144A ES429144A ES429144A1 ES 429144 A1 ES429144 A1 ES 429144A1 ES 429144 A ES429144 A ES 429144A ES 429144 A ES429144 A ES 429144A ES 429144 A1 ES429144 A1 ES 429144A1
Authority
ES
Spain
Prior art keywords
sulphonation
sulphuric acid
nitroguanidine
dicyandiamide
nitration
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.)
Expired
Application number
ES429144A
Other languages
Spanish (es)
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.)
I N I C E T M E
Original Assignee
I N I C E T M E
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 I N I C E T M E filed Critical I N I C E T M E
Priority to ES429144A priority Critical patent/ES429144A1/en
Priority to IT24753/75A priority patent/IT1041764B/en
Priority to FR7520213A priority patent/FR2281355A1/en
Priority to CH1038875A priority patent/CH603566A5/xx
Publication of ES429144A1 publication Critical patent/ES429144A1/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C277/00—Preparation of guanidine or its derivatives, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups
    • C07C277/08—Preparation of guanidine or its derivatives, i.e. compounds containing the group, the singly-bound nitrogen atoms not being part of nitro or nitroso groups of substituted guanidines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Nitroguanidine is prepd. by sulphonating dicyandiamide in sulphuric acid of strength over 85%, then nitrating to form nitroguanidine which is pptd. by drowning the reaction mixt. into ice/water. The improvements are the use of strong sulphuric acid (cf. 61% previously which enables less to be used with a lower sulphonation temp. (100 degrees C cf. 140-150 degrees C) and finally nitric acid alone is used for the nitration compared with nitric/sulphuric mixt. The sulphuric acid is pref. 86-88% and the sulphonation temp. is 100 degrees C. The quantity of sulphuric acid used is pref. 470-493 pts./100 pts. dicyandiamide.
ES429144A 1974-08-09 1974-08-09 Nitroguanidine from dicyandiamide by sulphonation then nitration - using above 85 percent sulphuric acid for sulphonation Expired ES429144A1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES429144A ES429144A1 (en) 1974-08-09 1974-08-09 Nitroguanidine from dicyandiamide by sulphonation then nitration - using above 85 percent sulphuric acid for sulphonation
IT24753/75A IT1041764B (en) 1974-08-09 1975-06-25 PROCESS PERFECTED FOR THE MANUFACTURE OF NITROGUANTIDINA
FR7520213A FR2281355A1 (en) 1974-08-09 1975-06-27 Nitroguanidine from dicyandiamide by sulphonation then nitration - using above 85 percent sulphuric acid for sulphonation
CH1038875A CH603566A5 (en) 1974-08-09 1975-08-08

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES429144A ES429144A1 (en) 1974-08-09 1974-08-09 Nitroguanidine from dicyandiamide by sulphonation then nitration - using above 85 percent sulphuric acid for sulphonation

Publications (1)

Publication Number Publication Date
ES429144A1 true ES429144A1 (en) 1976-11-16

Family

ID=8467369

Family Applications (1)

Application Number Title Priority Date Filing Date
ES429144A Expired ES429144A1 (en) 1974-08-09 1974-08-09 Nitroguanidine from dicyandiamide by sulphonation then nitration - using above 85 percent sulphuric acid for sulphonation

Country Status (4)

Country Link
CH (1) CH603566A5 (en)
ES (1) ES429144A1 (en)
FR (1) FR2281355A1 (en)
IT (1) IT1041764B (en)

Also Published As

Publication number Publication date
CH603566A5 (en) 1978-08-31
IT1041764B (en) 1980-01-10
FR2281355B1 (en) 1978-06-09
FR2281355A1 (en) 1976-03-05

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