CS227344B2 - Method of producing urea - Google Patents

Method of producing urea Download PDF

Info

Publication number
CS227344B2
CS227344B2 CS821668A CS166882A CS227344B2 CS 227344 B2 CS227344 B2 CS 227344B2 CS 821668 A CS821668 A CS 821668A CS 166882 A CS166882 A CS 166882A CS 227344 B2 CS227344 B2 CS 227344B2
Authority
CS
Czechoslovakia
Prior art keywords
pressure
urea
carbon dioxide
ammonia
stream
Prior art date
Application number
CS821668A
Other languages
Czech (cs)
English (en)
Inventor
Henk Ch Burks
Adolphe M Douwes
Kees Jonckers
Original Assignee
Unie Van Kunstmestfab 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 Unie Van Kunstmestfab Bv filed Critical Unie Van Kunstmestfab Bv
Publication of CS227344B2 publication Critical patent/CS227344B2/cs

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
    • 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
    • C07C273/14—Separation; Purification; Stabilisation; Use of additives
    • C07C273/16—Separation; Purification
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C275/00—Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C275/02—Salts; Complexes; Addition compounds

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
  • Heat Treatment Of Sheet Steel (AREA)
  • Catalysts (AREA)
  • Electroluminescent Light Sources (AREA)
  • Saccharide Compounds (AREA)
  • Steroid Compounds (AREA)
  • Compounds Of Unknown Constitution (AREA)
CS821668A 1981-03-11 1982-03-11 Method of producing urea CS227344B2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8101174A NL8101174A (nl) 1981-03-11 1981-03-11 Werkwijze voor de bereiding van ureum.

Publications (1)

Publication Number Publication Date
CS227344B2 true CS227344B2 (en) 1984-04-16

Family

ID=19837140

Family Applications (1)

Application Number Title Priority Date Filing Date
CS821668A CS227344B2 (en) 1981-03-11 1982-03-11 Method of producing urea

Country Status (22)

Country Link
EP (1) EP0060511B1 (fi)
JP (1) JPS57159756A (fi)
KR (1) KR830009010A (fi)
AT (1) ATE7905T1 (fi)
AU (1) AU8125082A (fi)
BR (1) BR8201298A (fi)
CS (1) CS227344B2 (fi)
DD (1) DD202535A5 (fi)
DE (1) DE3260234D1 (fi)
ES (1) ES510282A0 (fi)
FI (1) FI820829L (fi)
IL (1) IL65220A0 (fi)
MA (1) MA19404A1 (fi)
NL (1) NL8101174A (fi)
NO (1) NO820778L (fi)
OA (1) OA07039A (fi)
PL (1) PL235399A1 (fi)
PT (1) PT74566B (fi)
RO (1) RO84765B (fi)
YU (1) YU48182A (fi)
ZA (1) ZA821595B (fi)
ZW (1) ZW4482A1 (fi)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1491526A1 (en) * 2003-06-27 2004-12-29 Urea Casale S.A. Process and plant for urea production
EP3736415A1 (en) * 2019-05-10 2020-11-11 Yara International ASA Steam network assembly for a plant comprising an ammonia-producing unit and a urea-producing unit
CN113416154B (zh) * 2021-07-30 2023-01-17 新疆心连心能源化工有限公司 尿素合成未反应物循环回收方法及装置

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
YU34282B (en) * 1967-12-14 1979-04-30 Snam Progetti Process for the decomposition and recyclation of unreacted ammonium carbamate into the reactor for the synthesis of carbamide
AT284138B (de) * 1968-02-06 1970-09-10 Snam Progetti Verfahren zur Herstellung von Harnstoff
NL165712C (nl) * 1970-05-30 1981-05-15 Stamicarbon Werkwijze en inrichting voor het bij synthesedruk terug- winnen van ammoniak en kooldioxyde uit het spuigas van een ureumsynthese.
NL168506C (nl) * 1970-12-31 1982-04-16 Stamicarbon Werkwijze voor de bereiding van ureum.
BE787832A (fr) * 1971-09-02 1973-02-22 Stamicarbon Procede pour la preparation d'uree
NL7307036A (fi) * 1973-05-21 1974-11-25
NL7612162A (nl) * 1976-11-03 1978-05-08 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van een ureum- oplossing uit nh3 en co2.

Also Published As

Publication number Publication date
MA19404A1 (fr) 1982-10-01
KR830009010A (ko) 1983-12-17
ATE7905T1 (de) 1984-06-15
FI820829L (fi) 1982-09-12
EP0060511B1 (en) 1984-06-13
RO84765B (ro) 1984-09-30
YU48182A (en) 1985-03-20
PL235399A1 (fi) 1982-10-11
DE3260234D1 (en) 1984-07-19
AU8125082A (en) 1982-09-16
ZW4482A1 (en) 1982-07-14
BR8201298A (pt) 1983-01-25
EP0060511A1 (en) 1982-09-22
JPS57159756A (en) 1982-10-01
ES8303302A1 (es) 1983-02-01
NO820778L (no) 1982-09-13
PT74566B (en) 1983-11-07
ES510282A0 (es) 1983-02-01
PT74566A (en) 1982-04-01
DD202535A5 (de) 1983-09-21
RO84765A (ro) 1984-08-17
ZA821595B (en) 1983-01-26
IL65220A0 (en) 1982-05-31
OA07039A (fr) 1983-12-31
NL8101174A (nl) 1982-10-01

Similar Documents

Publication Publication Date Title
JP4975205B2 (ja) ガス状混合物からのアンモニア回収方法
US4539077A (en) Process for the preparation of urea
IE45681B1 (en) Production of urea
US3867442A (en) Process for preparing urea
CN111302899A (zh) 一种环己酮氨肟化生产过程中氨和叔丁醇回收装置及方法
CN109890788B (zh) 尿素与尿素-硝酸铵的集成工艺
JPH093032A (ja) アンモニア／尿素の統合法
US4801745A (en) Improved process for the preparation of urea
AT411830B (de) Verfahren zur herstellung von harnstoff unter einbindung der melamin-offgase in eine harnstoffanlage
SU973012A3 (ru) Способ разделени аммиака и двуокиси углерода
US3120563A (en) Urea preparation
SU459887A3 (ru) Способ получени мочевины
JPS6256084B2 (fi)
CS227344B2 (en) Method of producing urea
JP3003706B2 (ja) 転化率が高くエネルギー消費が少ない尿素製造プロセス及びそのプラント
US4801747A (en) Process for preparing urea
SU1153825A3 (ru) Способ получени мочевины
CN212102637U (zh) 一种环己酮氨肟化生产过程中氨和叔丁醇回收装置
CS228529B2 (en) Process for the production of urea
KR800001159B1 (ko) 암모니아와 이산화탄소를 함유하고 있는 혼합물로 부터 암모니아와 이산화탄소를 분리하는 방법
US7091379B2 (en) Process and plant for the production of urea
KR790001171B1 (ko) 요소합성에 있어서의 미반응물 및 열의 회수법
US4053508A (en) Process and installation for preparing urea from ammonia and carbon dioxide
RU2069657C1 (ru) Способ получения карбамида
CN1241910C (zh) 制备尿素的方法