CA1182838A - Methode de production de l'uree - Google Patents

Methode de production de l'uree

Info

Publication number
CA1182838A
CA1182838A CA000384728A CA384728A CA1182838A CA 1182838 A CA1182838 A CA 1182838A CA 000384728 A CA000384728 A CA 000384728A CA 384728 A CA384728 A CA 384728A CA 1182838 A CA1182838 A CA 1182838A
Authority
CA
Canada
Prior art keywords
decomposition
urea
ammonia
stage
pressure
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
CA000384728A
Other languages
English (en)
Inventor
Vincenzo Lagana
Virginio Cavallanti
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.)
SnamProgetti SpA
Original Assignee
SnamProgetti SpA
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 SnamProgetti SpA filed Critical SnamProgetti SpA
Application granted granted Critical
Publication of CA1182838A publication Critical patent/CA1182838A/fr
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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/141—Feedstock

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Saccharide Compounds (AREA)
CA000384728A 1980-08-29 1981-08-27 Methode de production de l'uree Expired CA1182838A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT24357/80A IT1141030B (it) 1980-08-29 1980-08-29 Procedimento per la produzione di urea
IT24357A/80 1980-08-29

Publications (1)

Publication Number Publication Date
CA1182838A true CA1182838A (fr) 1985-02-19

Family

ID=11213241

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000384728A Expired CA1182838A (fr) 1980-08-29 1981-08-27 Methode de production de l'uree

Country Status (35)

Country Link
JP (1) JPS5772955A (fr)
KR (1) KR850000700B1 (fr)
AR (1) AR226915A1 (fr)
AT (1) AT377253B (fr)
AU (1) AU544041B2 (fr)
BE (1) BE890118A (fr)
BR (1) BR8105217A (fr)
CA (1) CA1182838A (fr)
CS (1) CS228529B2 (fr)
DD (1) DD201780A5 (fr)
DE (1) DE3133765C2 (fr)
DK (1) DK343381A (fr)
EG (1) EG15405A (fr)
ES (1) ES8301902A1 (fr)
FR (1) FR2489323A1 (fr)
GB (1) GB2087381B (fr)
IL (1) IL63560A (fr)
IN (1) IN153584B (fr)
IT (1) IT1141030B (fr)
LU (1) LU83591A1 (fr)
MW (1) MW3181A1 (fr)
MX (1) MX152570A (fr)
MY (1) MY8500910A (fr)
NL (1) NL8104011A (fr)
NO (1) NO151199C (fr)
PH (1) PH18034A (fr)
PL (1) PL132177B1 (fr)
PT (1) PT73594B (fr)
RO (1) RO82682B (fr)
SE (1) SE447652B (fr)
TR (1) TR21103A (fr)
YU (1) YU194681A (fr)
ZA (1) ZA815329B (fr)
ZM (1) ZM7381A1 (fr)
ZW (1) ZW18981A1 (fr)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1211125B (it) * 1981-10-16 1989-09-29 Ortu Francesco Composti azotati. processo per la preparazione di
EP0096151B1 (fr) * 1982-06-03 1986-07-23 Montedison S.p.A. Procédé pour inhiber la corrosion des strippers dans les installations pour la production d'urée
NL8400840A (nl) * 1984-03-16 1985-10-16 Unie Van Kunstmestfab Bv Werkwijze voor de bereiding van ureum.
IT1209532B (it) * 1984-04-20 1989-08-30 Snam Progetti Processo per la sintesi di urea e materiale utilizzato nello stesso.
IT1245396B (it) * 1991-03-22 1994-09-20 Snam Progetti Procedimento per la produzione di urea ad elevata efficienza energetica
US8906187B2 (en) 2008-06-25 2014-12-09 Colgate-Palmolive Company Method of making shoulder/nozzles with film barrier liners
ITMI20120013A1 (it) 2012-01-09 2013-07-10 Saipem Spa Procedimento per la sintesi di urea comprendente un flusso di passivazione a fondo stripper

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL101446C (fr) * 1960-04-08
US4053508A (en) * 1960-09-05 1977-10-11 Stamicarbon, N.V. Process and installation for preparing urea from ammonia and carbon dioxide
CH498811A (de) * 1967-05-22 1970-11-15 Chemical Construction Corp Verfahren zur Herstellung von Harnstoff aus Ammoniak und Kohlendioxyd
BE757274A (fr) * 1969-10-16 1971-03-16 Snam Progetti Procede de production d'uree
US3922222A (en) * 1973-02-20 1975-11-25 Cf Ind Method for treatment of urea crystallizer condensate
IT1068268B (it) * 1976-09-09 1985-03-21 Snam Progetti Procedimento per la produzione di urea e purificazione delle acque
NL174548C (nl) * 1977-05-05 1988-05-16 Montedison Spa Werkwijze voor het bereiden van ureum door reaktie van ammoniak en kooldioxyde.

Also Published As

Publication number Publication date
CS228529B2 (en) 1984-05-14
MW3181A1 (en) 1982-09-08
IN153584B (fr) 1984-07-28
JPS5772955A (en) 1982-05-07
FR2489323B1 (fr) 1984-02-10
GB2087381A (en) 1982-05-26
BR8105217A (pt) 1982-04-27
LU83591A1 (fr) 1982-04-14
ZW18981A1 (en) 1981-10-28
DE3133765C2 (de) 1983-05-19
NL8104011A (nl) 1982-03-16
AU7390481A (en) 1982-03-04
FR2489323A1 (fr) 1982-03-05
SE447652B (sv) 1986-12-01
ES505481A0 (es) 1983-01-16
IT8024357A0 (it) 1980-08-29
NO151199B (no) 1984-11-19
SE8105105L (sv) 1982-03-01
BE890118A (fr) 1982-03-01
NO151199C (no) 1985-02-27
ZM7381A1 (en) 1981-12-21
AT377253B (de) 1985-02-25
MY8500910A (en) 1985-12-31
AU544041B2 (en) 1985-05-16
TR21103A (tr) 1983-07-01
IL63560A (en) 1985-09-29
PL132177B1 (en) 1985-02-28
GB2087381B (en) 1984-08-22
PH18034A (en) 1985-03-06
IL63560A0 (en) 1981-11-30
NO812855L (no) 1982-03-01
PT73594A (en) 1981-09-01
PT73594B (en) 1982-11-10
DE3133765A1 (de) 1982-04-01
KR850000700B1 (en) 1985-05-15
IT1141030B (it) 1986-10-01
DK343381A (da) 1982-03-01
ATA354881A (de) 1984-07-15
AR226915A1 (es) 1982-08-31
DD201780A5 (de) 1983-08-10
KR830006192A (ko) 1983-09-20
MX152570A (es) 1985-08-30
EG15405A (en) 1986-06-30
PL232761A1 (fr) 1982-03-01
ES8301902A1 (es) 1983-01-16
RO82682B (ro) 1984-01-30
ZA815329B (en) 1982-07-28
YU194681A (en) 1983-02-28
RO82682A (fr) 1984-01-14

Similar Documents

Publication Publication Date Title
US8158824B2 (en) Process for the production of urea from ammonia and carbon dioxide
US6852886B2 (en) Process for the preparation of urea
CA1182838A (fr) Methode de production de l'uree
US8377399B2 (en) Process for increasing the capacity of an existing urea plant
CA1053701A (fr) Procede integre pour la synthese de l'uree et de l'ammoniac
US20240262798A1 (en) A process and plant for the synthesis of urea and melamine
US5886222A (en) High yield process for urea synthesis
US6730811B1 (en) Process for the preparation of urea
EP0796244B2 (fr) Installations de production d'uree a haut rendement et a faible consommation d'energie et procede correspondant
EP1230226B1 (fr) Procede de purification de la melamine
US20010041813A1 (en) Process for the preparation of urea
US11279671B2 (en) Process and plant for the synthesis of urea
CA2457200A1 (fr) Procede permettant de rendre des metaux resitants a la corrosion
CN1260209C (zh) 尿素的制备方法
US6858755B2 (en) Process for the preparation of urea
WO2003087043A1 (fr) Procede pour la preparation d'uree
US4178309A (en) Manufacture of symmetrical dialkylureas
US4082797A (en) Method for the condensation of carbammate in urea-synthesis installations
EP0098396B1 (fr) Procédé de récupération de l'excès de NH3 contenu dans les solutions aqueuses d'urée
CA1132798A (fr) Methode pour combattre l'explosibilite des gaz en provenance des installations de production de l'uree
CA1155457A (fr) Methode de synthese de l'uree
EP0614883A1 (fr) Procédé de préparation d'urée à partir d'ammoniac et de gaz carbonique avec une conversion totale de gaz carbonique
WO2021239955A1 (fr) Procédé et installation pour la synthèse d'urée
AU2002252800A1 (en) Process for the preparation of urea

Legal Events

Date Code Title Description
MKEX Expiry