ES2000605A6 - Un procedimiento para la preparacion de urea - Google Patents

Un procedimiento para la preparacion de urea

Info

Publication number
ES2000605A6
ES2000605A6 ES8600967A ES8600967A ES2000605A6 ES 2000605 A6 ES2000605 A6 ES 2000605A6 ES 8600967 A ES8600967 A ES 8600967A ES 8600967 A ES8600967 A ES 8600967A ES 2000605 A6 ES2000605 A6 ES 2000605A6
Authority
ES
Spain
Prior art keywords
urea
solution
pressure
supplied
carbon dioxide
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
ES8600967A
Other languages
English (en)
Inventor
Victor Elodie A Baenens
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 ES2000605A6 publication Critical patent/ES2000605A6/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)
  • Saccharide Compounds (AREA)

Abstract

SE PREPARA UREA FORMANDO UNA SOLUCION DE SINTESIS DE UREA QUE CONTIENE CARBAMATO, DESCOMPONIENDO UNA PORCION DEL CARBAMATO MEDIANTE TRATAMIENTO DE SEPARACION CO2, DESCOMPONIENDO OTRA PORCION DEL CARBAMATO EN AL MENOS DOS ETAPAS ADICIONALES, EN LA PRIMERA DE LAS CUALES SE MANTIENE UNA PRESION DE 12-30 BARES Y EN LA SEGUNDA UNA PRESION MAS BAJA, Y TRATANDO ULTERIORMENTE POR EVAPORACION LA SOLUCION RESTANTE. UNA PORCION DE LA SOLUCION DE UREA SE SEPARA CON CO2 MIENTRAS SE SUMINISTRA CALOR Y LA PORCION RESTANTE SE PONE EN CONTACTO A CONTRACORRIENTE CON CO2 EN CONDICIONES ADIABATICAS, CONDENSANDOSE LAS MEZCLAS GASEOSAS OBTENIDAS EN AMBAS OPERACIONES. LA SOLUCION OBTENIDA DURANTE EL TRATAMIENTO EN CONDICIONES ADIABATICAS SE SUMINISTRA A LA PRIMERA ETAPA DE DESCOMPOSICION ADICIONAL Y LA SOLUCION DE UREA SEPARADA SE LLEVA A LA SEGUNDA ETAPA DE DESCOMPOSICION ADICIONAL.
ES8600967A 1985-08-12 1986-08-08 Un procedimiento para la preparacion de urea Expired ES2000605A6 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8502228A NL8502228A (nl) 1985-08-12 1985-08-12 Werkwijze voor de bereiding van ureum.

Publications (1)

Publication Number Publication Date
ES2000605A6 true ES2000605A6 (es) 1988-03-01

Family

ID=19846411

Family Applications (1)

Application Number Title Priority Date Filing Date
ES8600967A Expired ES2000605A6 (es) 1985-08-12 1986-08-08 Un procedimiento para la preparacion de urea

Country Status (19)

Country Link
US (1) US4801746A (es)
EP (1) EP0213669A1 (es)
JP (1) JPS6239560A (es)
KR (1) KR870002058A (es)
CN (1) CN86105057A (es)
AU (1) AU592107B2 (es)
BG (1) BG45386A3 (es)
BR (1) BR8603803A (es)
ES (1) ES2000605A6 (es)
GR (1) GR862096B (es)
HU (1) HUT45969A (es)
IL (1) IL79679A0 (es)
NL (1) NL8502228A (es)
NO (1) NO163098C (es)
OA (1) OA08384A (es)
SU (1) SU1494864A3 (es)
TR (1) TR22836A (es)
YU (1) YU139886A (es)
ZA (1) ZA865986B (es)

Families Citing this family (16)

* 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.
GB8819291D0 (en) * 1988-08-12 1988-09-14 British American Tobacco Co Improvements relating to smoking articles
IT1232669B (it) * 1989-09-15 1992-03-02 Snam Progetti Procedimento per la produzione di urea con elevato rendimento energetico.
IT1245396B (it) * 1991-03-22 1994-09-20 Snam Progetti Procedimento per la produzione di urea ad elevata efficienza energetica
US6274767B1 (en) * 1992-11-19 2001-08-14 Urea Casale, S.A. Process for the revamping of urea synthesis plants consisting of a stripper with ammonia
IT1274362B (it) * 1995-02-16 1997-07-17 Snam Progetti Procedimento ad alta resa per la sintesi dell'urea
NL1000416C2 (nl) * 1995-05-23 1996-11-25 Dsm Nv Werkwijze voor de bereiding van ureum.
US5767313A (en) * 1995-05-23 1998-06-16 Dsm N.V. Method for the preparation of urea
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
US8748659B2 (en) 2009-05-01 2014-06-10 Idemitsu Kosan Co., Ltd. Method for producing alpha,beta-unsaturated carboxylic acid-N,N-disubstituted amide and method for producing 3-alkoxycarboxylic acid-N,N-disubstituted amide
JP6329159B2 (ja) * 2013-02-08 2018-05-23 東洋エンジニアリング株式会社 燃焼排ガスからの二酸化炭素回収プロセス
EA033176B1 (ru) * 2014-11-27 2019-09-30 Стамикарбон Б.В. Способ и установка для производства карбамидоаммониевого нитрата (uan)
CN104591807A (zh) * 2014-12-22 2015-05-06 广西大学 一种从尿液中提取氨合成尿素的制作工艺
CN105344208A (zh) * 2015-11-23 2016-02-24 河南心连心化肥有限公司 尿素合成气吸收再循环装置及其再循环方法
DE102016217765A1 (de) * 2016-09-16 2018-03-22 Thyssenkrupp Ag Anordnung und Verfahren zur Kondensation eines heißen sauren Gasgemischs
CN115956067A (zh) * 2020-06-05 2023-04-11 国立研究开发法人产业技术总合研究所 氨基甲酸盐的制造方法、氨基甲酸酯的制造方法、以及尿素衍生物的制造方法

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
NL8602770A (nl) * 1986-11-03 1988-06-01 Stamicarbon Werkwijze voor de bereiding van ureum.

Also Published As

Publication number Publication date
CN86105057A (zh) 1987-04-01
NO863212L (no) 1987-02-13
NO163098C (no) 1990-04-04
TR22836A (tr) 1988-08-18
GR862096B (en) 1986-12-30
JPS6239560A (ja) 1987-02-20
NO163098B (no) 1989-12-27
KR870002058A (ko) 1987-03-28
BR8603803A (pt) 1987-03-17
YU139886A (en) 1988-06-30
OA08384A (fr) 1988-02-29
AU6104086A (en) 1987-02-26
EP0213669A1 (en) 1987-03-11
NO863212D0 (no) 1986-08-08
SU1494864A3 (ru) 1989-07-15
HUT45969A (en) 1988-09-28
ZA865986B (en) 1987-06-24
US4801746A (en) 1989-01-31
NL8502228A (nl) 1987-03-02
IL79679A0 (en) 1986-11-30
BG45386A3 (bg) 1989-05-15
AU592107B2 (en) 1990-01-04

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Legal Events

Date Code Title Description
FD1A Patent lapsed

Effective date: 20000601