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1. (WO2004002966) METHOD AND DEVICE FOR THE RECOVERY OF MELAMINE BY EXPANSION
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2004/002966    International Application No.:    PCT/EP2003/006990
Publication Date: 08.01.2004 International Filing Date: 26.06.2003
IPC:
B01J 19/00 (2006.01), B01J 19/18 (2006.01), C07D 251/56 (2006.01), C07D 251/60 (2006.01)
Applicants: EUROTECNICA GROUP S.A. [CH/CH]; Rue Général Dufour 153, CH-2502 Bienne (CH) (For All Designated States Except US).
PARMEGIANI, Massimo [IT/IT]; (IT) (For US Only).
SANTUCCI, Roberto [IT/IT]; (IT) (For US Only)
Inventors: PARMEGIANI, Massimo; (IT).
SANTUCCI, Roberto; (IT)
Agent: FUSINA, Gerolamo; Ing. Barzano' & Zanardo Milano S.p.A., Via Borgonuovo 10, I-20121 Milano (IT)
Priority Data:
MI2002A001422 27.06.2002 IT
Title (EN) METHOD AND DEVICE FOR THE RECOVERY OF MELAMINE BY EXPANSION
(FR) PROCEDE ET DISPOSITIF DE RECUPERATION DE MELANINE PAR DETENTE A PARTIR DE SES MELANGES CRUS PRODUITS DANS LE PROCESSUS DE PYROLYSE DE L'UREE
Abstract: front page image
(EN)Treatment of the pyrolysis product of urea to melamine, in one or more expansion and cooling steps to separate the off­gas and recover the melamine in solution/suspension, carried out by expanding the product under a liquid seal, to prevent the melamine crystals in formation from adhering to the internal walls of the equipment.
(FR)L'invention concerne le traitement du produit de pyrolyse de l'urée pour former de la mélanine, en une ou plusieurs étapes de détente et de refroidissement, pour séparer les effluents gazeux et récupérer la mélanine en solution/suspension, l'opération s'effectuant par détente du produit sous un élément d'étanchéité liquide, afin d'empêcher les cristaux de mélanine en formation d'adhérer aux parois intérieures de l'appareillage.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, 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, MZ, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HU, IE, IT, LU, MC, NL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: English (EN)
Filing Language: English (EN)