ES2000389A6 - Un procedimiento de preparacion de urea - Google Patents

Un procedimiento de preparacion de urea

Info

Publication number
ES2000389A6
ES2000389A6 ES8600966A ES8600966A ES2000389A6 ES 2000389 A6 ES2000389 A6 ES 2000389A6 ES 8600966 A ES8600966 A ES 8600966A ES 8600966 A ES8600966 A ES 8600966A ES 2000389 A6 ES2000389 A6 ES 2000389A6
Authority
ES
Spain
Prior art keywords
urea
solution
carbamate
gaseous mixture
decomposing
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
ES8600966A
Other languages
English (en)
Inventor
Jozef Hubert Meesen
Rudolf Sipkema
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.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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 Stamicarbon BV filed Critical Stamicarbon BV
Publication of ES2000389A6 publication Critical patent/ES2000389A6/es
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
    • C07C273/04—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds from carbon dioxide and ammonia

Landscapes

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

Abstract

SE PREPARA UREA FORMANDO UNA SOLUCION DE SINTESIS DE UREA QUE CONTIENE CARBAMATO, DESCOMPONIENDO UNA PARTE DEL CARBAMATO MEDIANTE TRATAMIENTO DE SEPARACION CON DIOXIDO DE CARBONO, DESCOMPONIENDO OTRA PARTE DE CARBAMATO EN AL MENOS DOS ETAPAS ADICIONALES, EN LA PRIMERA DE LAS CUALES SE MANTIENE UNA PRESION DE 12-30 BARES, Y TRATANDO ULTERIORMENTE POR EVAPORACION LA SOLUCION RESTANTE. LA MEZCLA GASEOSA, FORMADA AL EXPANDIRSE LA SOLUCION DE UREA SEPARADA A LA PRESION DE LA PRIMERA ETAPA DE DESCOMPOSICION ADICIONAL, SE PONE EN CONTACTO CON LA SOLUCION QUE QUEDA DESPUES DE HABERSE DESCOMPUESTO CANTIDADES ADICIONALES DE CARBAMATO TODAVIA PRESENTES Y HABERSE SEPARADO LOS GASES ASI FORMADOS. SE CONDENSA DESPUES LA MEZCLA GASEOSA RESTANTE, POR EJEMPLO MEDIANTE INTERCAMBIO TERMICO INDIRECTO CON LA SOLUCION DE UREA A EVAPORAR, Y SE RECICLA EL CONDENSADO A LA FASE DE SINTESIS.
ES8600966A 1985-08-12 1986-08-08 Un procedimiento de preparacion de urea Expired ES2000389A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8502227A NL8502227A (nl) 1985-08-12 1985-08-12 Werkwijze voor de bereiding van ureum.

Publications (1)

Publication Number Publication Date
ES2000389A6 true ES2000389A6 (es) 1988-02-16

Family

ID=19846410

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8600966A Expired ES2000389A6 (es) 1985-08-12 1986-08-08 Un procedimiento de preparacion de urea

Country Status (19)

Country Link
US (1) US4801745A (es)
EP (1) EP0212744A1 (es)
JP (1) JPS6239559A (es)
KR (1) KR870002057A (es)
CN (1) CN86105256A (es)
AU (1) AU592360B2 (es)
BG (1) BG45384A3 (es)
BR (1) BR8603801A (es)
ES (1) ES2000389A6 (es)
GR (1) GR862097B (es)
HU (1) HUT45970A (es)
IL (1) IL79678A0 (es)
NL (1) NL8502227A (es)
NO (1) NO163097C (es)
OA (1) OA08383A (es)
SU (1) SU1494865A3 (es)
TR (1) TR22843A (es)
YU (1) YU139786A (es)
ZA (1) ZA865985B (es)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8800259A (nl) * 1988-02-04 1989-09-01 Stamicarbon Werkwijze voor het concentreren van een ureumoplossing.
IT1232669B (it) * 1989-09-15 1992-03-02 Snam Progetti Procedimento per la produzione di urea con elevato rendimento energetico.
ATE167666T1 (de) * 1991-11-14 1998-07-15 Urea Casale Sa Verfahren zur herstellung von harnstoff mit reaktionsräumen unterschiedlicher ausbeuten
US5523482A (en) * 1993-05-14 1996-06-04 Urea Casale S.A. Process and plant for the production of urea in reaction spaces with different yields
ZA96686B (en) * 1995-02-01 1996-08-16 Urea Casale Sa Process and plant for the production of urea with high conversion yield and low energy consumption
IT1274362B (it) * 1995-02-16 1997-07-17 Snam Progetti Procedimento ad alta resa per la sintesi dell'urea
US5597454A (en) * 1995-04-06 1997-01-28 Lee; Jing M. Process for producing urea
IT1275451B (it) * 1995-06-30 1997-08-07 Snam Progetti Procedimento per la sintesi dell'urea comprendente due separate zone di reazione
JP4358428B2 (ja) 2000-11-01 2009-11-04 東洋エンジニアリング株式会社 尿素製造方法
JP4627959B2 (ja) * 2001-07-23 2011-02-09 東洋エンジニアリング株式会社 尿素合成方法
EP1279663B2 (en) † 2001-07-23 2010-07-28 Toyo Engineering Corporation Urea synthesis process
EP1918273A1 (en) * 2006-11-04 2008-05-07 Urea Casale S.A. Process for urea production and related plant
ITMI20071029A1 (it) 2007-05-22 2008-11-23 Snam Progetti Procedimento migliorato per la sintesi di urea
EP2343274A1 (en) * 2010-01-07 2011-07-13 Stamicarbon B.V. A urea stripping process for the production of urea
ITMI20110804A1 (it) 2011-05-10 2012-11-11 Saipem Spa "processo ad alta resa per la sintesi dell'urea"
ITMI20120013A1 (it) 2012-01-09 2013-07-10 Saipem Spa Procedimento per la sintesi di urea comprendente un flusso di passivazione a fondo stripper
CA2997366A1 (en) * 2015-09-08 2017-03-16 Toyo Engineering Corporation Urea manufacturing method and urea manufacturing apparatus
JP7604673B2 (ja) 2021-02-22 2024-12-23 スタミカーボン・ベー・フェー 尿素製造プロセス及び並列ｍｐユニットを備えたプラント

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3406201A (en) * 1965-06-18 1968-10-15 Exxon Research Engineering Co Urea synthesis
NL172058C (nl) * 1972-06-12 1983-07-01 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
JPS5268129A (en) * 1975-12-05 1977-06-06 Mitsui Toatsu Chem Inc Recovery of unreacted material and heat on urea synthesis
IT1068268B (it) * 1976-09-09 1985-03-21 Snam Progetti Procedimento per la produzione di urea e purificazione delle acque
IT1065422B (it) * 1976-12-23 1985-02-25 Snam Progetti Processo ammoniaca-urea integrato per la produzione di urea
JPS5750954A (en) * 1980-09-12 1982-03-25 Mitsui Toatsu Chem Inc Synthesis of urea
GB2089786B (en) * 1980-12-23 1985-02-20 Mitsui Toatsu Chemicals Process for synthesizing urea
NL8303888A (nl) * 1983-11-13 1985-06-03 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.

Also Published As

Publication number Publication date
HUT45970A (en) 1988-09-28
SU1494865A3 (ru) 1989-07-15
JPS6239559A (ja) 1987-02-20
CN86105256A (zh) 1987-04-01
ZA865985B (en) 1987-03-25
AU6103986A (en) 1987-02-19
GR862097B (en) 1986-12-30
AU592360B2 (en) 1990-01-11
EP0212744A1 (en) 1987-03-04
NL8502227A (nl) 1987-03-02
NO863211D0 (no) 1986-08-08
NO863211L (no) 1987-02-13
NO163097C (no) 1990-04-04
US4801745A (en) 1989-01-31
TR22843A (tr) 1988-08-22
IL79678A0 (en) 1986-11-30
BR8603801A (pt) 1987-03-17
OA08383A (fr) 1988-02-29
BG45384A3 (bg) 1989-05-15
YU139786A (en) 1988-04-30
NO163097B (no) 1989-12-27
KR870002057A (ko) 1987-03-28

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000202