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1. (WO2001005752) AMINOGUANIDINE BICARBONATE WITH PARTICULAR PROPERTIES AND METHOD FOR MAKING SAME
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/005752 International Application No.: PCT/FR2000/001579
Publication Date: 25.01.2001 International Filing Date: 08.06.2000
Chapter 2 Demand Filed: 30.08.2000
IPC:
C07C 277/02 (2006.01) ,C07C 279/02 (2006.01)
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
277
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
02
of guanidine from cyanamide, calcium cyanamide or dicyandiamides
C CHEMISTRY; METALLURGY
07
ORGANIC CHEMISTRY
C
ACYCLIC OR CARBOCYCLIC COMPOUNDS
279
Derivatives of guanidine, i.e. compounds containing the group the singly-bound nitrogen atoms not being part of nitro or nitroso groups
02
Guanidine; Salts, complexes or addition compounds thereof
Applicants:
BOSSOUTROT, Jean-Michel [FR/FR]; FR (UsOnly)
BOURDAUDUCQ, Paul [FR/FR]; FR (UsOnly)
ATOFINA [FR/FR]; 4/8, cours Michelet F-92800 Puteaux, FR (AllExceptUS)
Inventors:
BOSSOUTROT, Jean-Michel; FR
BOURDAUDUCQ, Paul; FR
Agent:
DANG, Doris; Elf Atochem S.A. DCRD/DPI Cours Michelet La Défense 10 F-92091 Paris la Défense Cedex, FR
Priority Data:
99/0925716.07.1999FR
Title (EN) AMINOGUANIDINE BICARBONATE WITH PARTICULAR PROPERTIES AND METHOD FOR MAKING SAME
(FR) BICARBONATE D'AMINOGUANIDINE DE PROPRIETES PARTICULIERES ET SON PROCEDE DE FABRICATION
Abstract:
(EN) The invention concerns a method for making aminoguanidine bicarbonate from an aqueous solution of cyanamide and an aqueous solution of hydrazine hydrate in the presence of CO2. The invention is characterised in that it consists in proceeding with an amount of cyanide slightly higher than the stoichiometric quantity. The invention also concerns quasi-spherical agglomerates of aminoguanidine bicarbonate crystals.
(FR) La présente invention concerne un procédé de fabrication de bicarbonate d'aminoguanidine à partir d'une solution aqueuse de cyanamide et d'une solution aqueuse d'hydrate d'hydrazine en présence de CO2 caractérisé en ce que l'on opère avec un léger défaut en cyanamide par rapport à la stoechiométrie. Elle a également pour objet des agglomérats quasi sphériques de cristaux de bicarbonate d'aminoguanidine.
Designated States: AE, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, CA, CH, CN, CR, CU, CZ, DE, DK, DM, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: French (FR)
Filing Language: French (FR)