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1. (WO2006117050) PROCESS FOR UREA PRODUCTION AND RELATED PLANT
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2006/117050    International Application No.:    PCT/EP2006/003121
Publication Date: 09.11.2006 International Filing Date: 06.04.2006
IPC:
C07C 273/04 (2006.01)
Applicants: UREA CASALE S.A. [CH/CH]; Via Giulio Pocobelli, 6, CH-6900 Lugano-Besso (CH) (For All Designated States Except US).
ZARDI, Federico [CH/CH]; (CH) (For US Only).
STICCHI, Paolo [CH/CH]; (CH) (For US Only).
BRUNENGO, Paolo [IT/CH]; (CH) (For US Only)
Inventors: ZARDI, Federico; (CH).
STICCHI, Paolo; (CH).
BRUNENGO, Paolo; (CH)
Agent: ZARDI, Marco; M. Zardi & Co. S.A., Via Pioda, 6, CH-6900 Lugano (CH)
Priority Data:
05009761.7 04.05.2005 EP
Title (EN) PROCESS FOR UREA PRODUCTION AND RELATED PLANT
(FR) PROCEDE DE PRODUCTION D'UREE ET USINE ASSOCIEE
Abstract: front page image
(EN)A process for urea production from ammonia and carbon dioxide, in which part of the aqueous solution comprising urea, ammonium carbamate and ammonia obtained in a urea synthesis section is subjected to dissociation in a treatment section operating at a predetermined medium pressure for the recovery of the ammonium carbamate and of the ammonia contained in it, comprises the step of subjecting the urea aqueous solution resulting from the aforementioned dissociation step to decomposition in a low pressure urea recovery section.
(FR)Un procédé de production d'urée à partir d'ammonium et de dioxyde de carbone dot une partie de la solution aqueuse comprenant de l'urée, du carbamate d'ammonium et de l'ammonium obtenu dans une partie de synthèse d'urée est soumise à dissociation dans un traitement appliqué à une pression moyenne prédéterminée dans le but de récupérer le carbamate d'ammonium et l'ammonium contenu dans celui-ci. Le procédé consiste à soumettre la solution aqueuse d'urée obtenue à l'étape de dissociation précitée afin de décomposer une partie de récupération d'urée à faible pression.
Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, LY, MA, MD, MG, MK, MN, MW, MX, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RU, SC, SD, SE, SG, SK, SL, SM, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, YU, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, 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, IS, IT, LT, LU, LV, MC, NL, PL, 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)