OA07039A - Procédé de préparation d'urée. - Google Patents

Procédé de préparation d'urée.

Info

Publication number
OA07039A
OA07039A OA57634A OA57634A OA07039A OA 07039 A OA07039 A OA 07039A OA 57634 A OA57634 A OA 57634A OA 57634 A OA57634 A OA 57634A OA 07039 A OA07039 A OA 07039A
Authority
OA
OAPI
Prior art keywords
pressure
stage
urea
pressure stage
high pressure
Prior art date
Application number
OA57634A
Other languages
English (en)
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 OA07039A publication Critical patent/OA07039A/fr

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02Preparation 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
    • C07C273/04Preparation 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
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02Preparation 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
    • C07C273/14Separation; Purification; Stabilisation; Use of additives
    • C07C273/16Separation; Purification
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C275/00Derivatives of urea, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C275/02Salts; 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)
OA57634A 1981-03-11 1982-03-11 Procédé de préparation d'urée. OA07039A (fr)

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
OA07039A true OA07039A (fr) 1983-12-31

Family

ID=19837140

Family Applications (1)

Application Number Title Priority Date Filing Date
OA57634A OA07039A (fr) 1981-03-11 1982-03-11 Procédé de préparation d'urée.

Country Status (22)

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

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1491526A1 (fr) * 2003-06-27 2004-12-29 Urea Casale S.A. Procédé et installation de production d'urée
EP3736415A1 (fr) * 2019-05-10 2020-11-11 Yara International ASA Ensemble de réseau de vapeur pour une installation comprenant une unité de production d'ammoniac et une unité de production d'urée
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 (fr) * 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
ES8303302A1 (es) 1983-02-01
ZW4482A1 (en) 1982-07-14
ES510282A0 (es) 1983-02-01
KR830009010A (ko) 1983-12-17
BR8201298A (pt) 1983-01-25
YU48182A (en) 1985-03-20
AU8125082A (en) 1982-09-16
ATE7905T1 (de) 1984-06-15
DE3260234D1 (en) 1984-07-19
PL235399A1 (fr) 1982-10-11
DD202535A5 (de) 1983-09-21
NO820778L (no) 1982-09-13
RO84765B (ro) 1984-09-30
ZA821595B (en) 1983-01-26
PT74566B (en) 1983-11-07
NL8101174A (nl) 1982-10-01
EP0060511A1 (fr) 1982-09-22
IL65220A0 (en) 1982-05-31
RO84765A (fr) 1984-08-17
PT74566A (en) 1982-04-01
FI820829L (fi) 1982-09-12
CS227344B2 (en) 1984-04-16
EP0060511B1 (fr) 1984-06-13
JPS57159756A (en) 1982-10-01

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