FR2489323A1 - Procede de production d'uree - Google Patents
Procede de production d'uree Download PDFInfo
- Publication number
- FR2489323A1 FR2489323A1 FR8116244A FR8116244A FR2489323A1 FR 2489323 A1 FR2489323 A1 FR 2489323A1 FR 8116244 A FR8116244 A FR 8116244A FR 8116244 A FR8116244 A FR 8116244A FR 2489323 A1 FR2489323 A1 FR 2489323A1
- Authority
- FR
- France
- Prior art keywords
- decomposition
- urea
- ammonia
- zone
- stage
- 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.)
- Granted
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 239000004202 carbamide Substances 0.000 title claims abstract description 33
- 238000000034 method Methods 0.000 title claims abstract description 21
- 238000004519 manufacturing process Methods 0.000 title abstract description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 59
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 39
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 26
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 23
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 23
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical group [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims abstract description 10
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims abstract description 10
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 37
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 19
- 239000001569 carbon dioxide Substances 0.000 claims description 15
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 14
- 239000007789 gas Substances 0.000 claims description 5
- 239000007792 gaseous phase Substances 0.000 claims description 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims 1
- -1 CARBON ANHYDRIDE Chemical class 0.000 abstract 2
- 229910052799 carbon Inorganic materials 0.000 abstract 2
- 125000006367 bivalent amino carbonyl group Chemical group [H]N([*:1])C([*:2])=O 0.000 abstract 1
- 229960004424 carbon dioxide Drugs 0.000 description 14
- 239000007788 liquid Substances 0.000 description 8
- 235000011089 carbon dioxide Nutrition 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000011282 treatment Methods 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 3
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 238000005979 thermal decomposition reaction Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 230000002194 synthesizing effect Effects 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 235000011114 ammonium hydroxide Nutrition 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 150000004657 carbamic acid derivatives Chemical class 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000000498 cooling water Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT24357/80A IT1141030B (it) | 1980-08-29 | 1980-08-29 | Procedimento per la produzione di urea |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2489323A1 true FR2489323A1 (fr) | 1982-03-05 |
| FR2489323B1 FR2489323B1 (enrdf_load_stackoverflow) | 1984-02-10 |
Family
ID=11213241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR8116244A Granted FR2489323A1 (fr) | 1980-08-29 | 1981-08-25 | Procede de production d'uree |
Country Status (35)
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013104638A1 (en) | 2012-01-09 | 2013-07-18 | Saipem S.P.A | Process for the synthesis of urea comprising a passivation stream at the stripper bottom |
Families Citing this family (7)
| 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 |
| DE3364579D1 (en) * | 1982-06-03 | 1986-08-28 | Montedison Spa | Method for avoiding the corrosion of strippers in urea manufacturing plants |
| 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 |
| USD555828S1 (en) | 2005-08-04 | 2007-11-20 | Colgate-Palmolive Company | Dentifrice |
| US8906187B2 (en) | 2008-06-25 | 2014-12-09 | Colgate-Palmolive Company | Method of making shoulder/nozzles with film barrier liners |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB952764A (en) * | 1960-04-08 | 1964-03-18 | Stamicarbon | Preparation of urea |
| GB1272873A (en) * | 1969-10-16 | 1972-05-03 | Snam Progetti | Process for the production of urea |
| US3922222A (en) * | 1973-02-20 | 1975-11-25 | Cf Ind | Method for treatment of urea crystallizer condensate |
| US4053508A (en) * | 1960-09-05 | 1977-10-11 | Stamicarbon, N.V. | Process and installation for preparing urea from ammonia and carbon dioxide |
| FR2364203A1 (fr) * | 1976-09-09 | 1978-04-07 | Snam Progetti | Procede de production d'uree et d'epuration d'eau |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH498811A (de) * | 1967-05-22 | 1970-11-15 | Chemical Construction Corp | Verfahren zur Herstellung von Harnstoff aus Ammoniak und Kohlendioxyd |
| NO150512C (no) * | 1977-05-05 | 1984-10-31 | Montedison Spa | Fremgangsmaate ved fremstilling av urea. |
-
1980
- 1980-08-29 IT IT24357/80A patent/IT1141030B/it active
-
1981
- 1981-07-31 DK DK343381A patent/DK343381A/da not_active Application Discontinuation
- 1981-08-03 ZA ZA815329A patent/ZA815329B/xx unknown
- 1981-08-05 ZW ZW189/81A patent/ZW18981A1/xx unknown
- 1981-08-07 AU AU73904/81A patent/AU544041B2/en not_active Ceased
- 1981-08-07 GB GB8124264A patent/GB2087381B/en not_active Expired
- 1981-08-12 BR BR8105217A patent/BR8105217A/pt unknown
- 1981-08-12 YU YU01946/81A patent/YU194681A/xx unknown
- 1981-08-12 IL IL63560A patent/IL63560A/xx unknown
- 1981-08-13 AT AT0354881A patent/AT377253B/de not_active IP Right Cessation
- 1981-08-18 MW MW31/81A patent/MW3181A1/xx unknown
- 1981-08-20 ZM ZM73/81A patent/ZM7381A1/xx unknown
- 1981-08-21 PH PH26083A patent/PH18034A/en unknown
- 1981-08-22 PL PL1981232761A patent/PL132177B1/pl unknown
- 1981-08-24 NO NO812855A patent/NO151199C/no unknown
- 1981-08-25 TR TR21103A patent/TR21103A/xx unknown
- 1981-08-25 FR FR8116244A patent/FR2489323A1/fr active Granted
- 1981-08-26 DE DE3133765A patent/DE3133765C2/de not_active Expired
- 1981-08-26 DD DD81232813A patent/DD201780A5/de unknown
- 1981-08-26 MX MX188902A patent/MX152570A/es unknown
- 1981-08-26 CS CS816357A patent/CS228529B2/cs unknown
- 1981-08-27 BE BE0/205792A patent/BE890118A/fr not_active IP Right Cessation
- 1981-08-27 LU LU83591A patent/LU83591A1/fr unknown
- 1981-08-27 CA CA000384728A patent/CA1182838A/en not_active Expired
- 1981-08-27 KR KR8103130A patent/KR850000700B1/ko not_active Expired
- 1981-08-28 PT PT73594A patent/PT73594B/pt unknown
- 1981-08-28 RO RO105188A patent/RO82682B/ro unknown
- 1981-08-28 NL NL8104011A patent/NL8104011A/nl not_active Application Discontinuation
- 1981-08-28 SE SE8105105A patent/SE447652B/sv not_active IP Right Cessation
- 1981-08-28 JP JP56134360A patent/JPS5772955A/ja active Pending
- 1981-08-28 AR AR286593A patent/AR226915A1/es active
- 1981-08-28 ES ES505481A patent/ES8301902A1/es not_active Expired
- 1981-08-29 IN IN970/CAL/81A patent/IN153584B/en unknown
- 1981-08-29 EG EG81491A patent/EG15405A/xx active
-
1985
- 1985-12-30 MY MY910/85A patent/MY8500910A/xx unknown
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB952764A (en) * | 1960-04-08 | 1964-03-18 | Stamicarbon | Preparation of urea |
| US4053508A (en) * | 1960-09-05 | 1977-10-11 | Stamicarbon, N.V. | Process and installation for preparing urea from ammonia and carbon dioxide |
| GB1272873A (en) * | 1969-10-16 | 1972-05-03 | Snam Progetti | Process for the production of urea |
| US3922222A (en) * | 1973-02-20 | 1975-11-25 | Cf Ind | Method for treatment of urea crystallizer condensate |
| FR2364203A1 (fr) * | 1976-09-09 | 1978-04-07 | Snam Progetti | Procede de production d'uree et d'epuration d'eau |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013104638A1 (en) | 2012-01-09 | 2013-07-18 | Saipem S.P.A | Process for the synthesis of urea comprising a passivation stream at the stripper bottom |
| US9199926B2 (en) | 2012-01-09 | 2015-12-01 | Saipem S.P.A. | Process for the synthesis of urea comprising a passivation stream at the stripper bottom |
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US4087513A (en) | Method of hydrolyzing urea contained in waste water streams | |
| CA2732432C (en) | Process and plant for the production of a urea solution for use in scr process for reduction of nox | |
| US9199926B2 (en) | Process for the synthesis of urea comprising a passivation stream at the stripper bottom | |
| EP3286167A1 (fr) | Procede de fabrication de methionine | |
| FR2490224A1 (fr) | Procede de synthese de l'uree | |
| CN115916745B (zh) | 热汽提尿素装置和方法 | |
| FR2489323A1 (fr) | Procede de production d'uree | |
| EP4288410B1 (fr) | Procede d'ammonolyse d'acides bromoalcanoiques | |
| JPS61109760A (ja) | 尿素製造法 | |
| EP0180704B1 (fr) | Procédé perfectionné pour la production de l'urée | |
| EP1474374B1 (fr) | Procede de purification de l'acroleine | |
| FR2488887A1 (fr) | Procede pour purifier l'hexamethylenediamine | |
| FR3090832A1 (fr) | Procédé et appareil de séparation d’un courant d’alimentation comprenant au moins du CO2 ainsi qu’au moins un composé léger | |
| FR2465686A1 (fr) | Procede et dispositif pour l'obtention de chlorure de cyanogene pur | |
| FR2461706A1 (fr) | Procede de preparation en continu de la morpholine | |
| EP0181273B1 (fr) | Procédé pour concentrer des solutions aqueuses diluées d'oxyde d'éthylène | |
| EP0116529A1 (fr) | Procédé et appareillage pour la production de nitrate d'ammonium | |
| FR2489820A1 (fr) | Procede de synthese de l'uree | |
| WO2007034065A1 (fr) | Hydrolyse ammoniacale de l'hydantoine de methionine sans catalyseur | |
| FR2514351A1 (fr) | Methode de separation de l'indole | |
| FR2532292A2 (fr) | Procede d'elimination de l'hydrogene sulfure contenu dans un melange gazeux | |
| FR2513617A1 (fr) | Procede de fabrication simultanee d'acide nitrique fortement concentre et d'acide nitrique dilue | |
| EP3350122B1 (fr) | Procédé de purification du borazane | |
| EA047090B1 (ru) | Способ производства мочевины и установка с параллельными блоками сд | |
| CH389147A (fr) | Procédé de stabilisation d'acétylène gazeux sous pression |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ST | Notification of lapse |