PL132177B1 - Method of manufacture of urea - Google Patents
Method of manufacture of urea Download PDFInfo
- Publication number
- PL132177B1 PL132177B1 PL1981232761A PL23276181A PL132177B1 PL 132177 B1 PL132177 B1 PL 132177B1 PL 1981232761 A PL1981232761 A PL 1981232761A PL 23276181 A PL23276181 A PL 23276181A PL 132177 B1 PL132177 B1 PL 132177B1
- Authority
- PL
- Poland
- Prior art keywords
- decomposition
- stage
- ammonia
- urea
- carbon dioxide
- Prior art date
Links
- 239000004202 carbamide Substances 0.000 title description 31
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title description 30
- 238000000034 method Methods 0.000 title description 25
- 238000004519 manufacturing process Methods 0.000 title description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 63
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 50
- 238000000354 decomposition reaction Methods 0.000 description 39
- 229910002092 carbon dioxide Inorganic materials 0.000 description 29
- 229910021529 ammonia Inorganic materials 0.000 description 27
- 239000001569 carbon dioxide Substances 0.000 description 25
- 230000015572 biosynthetic process Effects 0.000 description 20
- 238000003786 synthesis reaction Methods 0.000 description 20
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 14
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 description 12
- 239000003795 chemical substances by application Substances 0.000 description 11
- 239000007788 liquid Substances 0.000 description 11
- 239000007789 gas Substances 0.000 description 9
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 8
- 239000012071 phase Substances 0.000 description 6
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 4
- 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
- 238000007906 compression Methods 0.000 description 2
- 238000011282 treatment Methods 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- OTMSDBZUPAUEDD-UHFFFAOYSA-N Ethane Chemical compound CC OTMSDBZUPAUEDD-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
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 230000006835 compression Effects 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
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000002156 mixing Methods 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
- 238000005086 pumping Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 239000002351 wastewater Substances 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 |
|---|---|
| PL232761A1 PL232761A1 (de) | 1982-03-01 |
| PL132177B1 true PL132177B1 (en) | 1985-02-28 |
Family
ID=11213241
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PL1981232761A PL132177B1 (en) | 1980-08-29 | 1981-08-22 | Method of manufacture of urea |
Country Status (35)
| Country | Link |
|---|---|
| JP (1) | JPS5772955A (de) |
| KR (1) | KR850000700B1 (de) |
| AR (1) | AR226915A1 (de) |
| AT (1) | AT377253B (de) |
| AU (1) | AU544041B2 (de) |
| BE (1) | BE890118A (de) |
| BR (1) | BR8105217A (de) |
| CA (1) | CA1182838A (de) |
| CS (1) | CS228529B2 (de) |
| DD (1) | DD201780A5 (de) |
| DE (1) | DE3133765C2 (de) |
| DK (1) | DK343381A (de) |
| EG (1) | EG15405A (de) |
| ES (1) | ES8301902A1 (de) |
| FR (1) | FR2489323A1 (de) |
| GB (1) | GB2087381B (de) |
| IL (1) | IL63560A (de) |
| IN (1) | IN153584B (de) |
| IT (1) | IT1141030B (de) |
| LU (1) | LU83591A1 (de) |
| MW (1) | MW3181A1 (de) |
| MX (1) | MX152570A (de) |
| MY (1) | MY8500910A (de) |
| NL (1) | NL8104011A (de) |
| NO (1) | NO151199C (de) |
| PH (1) | PH18034A (de) |
| PL (1) | PL132177B1 (de) |
| PT (1) | PT73594B (de) |
| RO (1) | RO82682B (de) |
| SE (1) | SE447652B (de) |
| TR (1) | TR21103A (de) |
| YU (1) | YU194681A (de) |
| ZA (1) | ZA815329B (de) |
| ZM (1) | ZM7381A1 (de) |
| ZW (1) | ZW18981A1 (de) |
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 |
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL101446C (de) * | 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 |
| SE446978B (sv) * | 1977-05-05 | 1986-10-20 | Montedison Spa | Isobariskt dubbelatercirkulationsforfarande for syntetisering av urea under bildning av ammoniumkarbamat som mellanprodukt |
-
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 GB GB8124264A patent/GB2087381B/en not_active Expired
- 1981-08-07 AU AU73904/81A patent/AU544041B2/en not_active Ceased
- 1981-08-12 IL IL63560A patent/IL63560A/xx unknown
- 1981-08-12 YU YU01946/81A patent/YU194681A/xx unknown
- 1981-08-12 BR BR8105217A patent/BR8105217A/pt 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 FR FR8116244A patent/FR2489323A1/fr active Granted
- 1981-08-25 TR TR21103A patent/TR21103A/xx unknown
- 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
- 1981-08-26 DE DE3133765A patent/DE3133765C2/de not_active Expired
- 1981-08-27 KR KR8103130A patent/KR850000700B1/ko active
- 1981-08-27 LU LU83591A patent/LU83591A1/fr unknown
- 1981-08-27 CA CA000384728A patent/CA1182838A/en not_active Expired
- 1981-08-27 BE BE0/205792A patent/BE890118A/fr not_active IP Right Cessation
- 1981-08-28 RO RO105188A patent/RO82682B/ro unknown
- 1981-08-28 AR AR286593A patent/AR226915A1/es active
- 1981-08-28 PT PT73594A patent/PT73594B/pt unknown
- 1981-08-28 JP JP56134360A patent/JPS5772955A/ja active Pending
- 1981-08-28 SE SE8105105A patent/SE447652B/sv not_active IP Right Cessation
- 1981-08-28 NL NL8104011A patent/NL8104011A/nl not_active Application Discontinuation
- 1981-08-28 ES ES505481A patent/ES8301902A1/es not_active Expired
- 1981-08-29 EG EG81491A patent/EG15405A/xx active
- 1981-08-29 IN IN970/CAL/81A patent/IN153584B/en unknown
-
1985
- 1985-12-30 MY MY910/85A patent/MY8500910A/xx unknown
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111295370B (zh) | 尿素生产方法和装置 | |
| JP7094453B2 (ja) | 尿素製造プロセス及び低圧回収部における熱統合を有するプラント | |
| PL116475B1 (en) | Method of manufacture of urea with waste waters treatment | |
| US10315925B2 (en) | Method and plant for producing urea-ammonium nitrate (UAN) | |
| CN109890788B (zh) | 尿素与尿素-硝酸铵的集成工艺 | |
| JPH0137389B2 (de) | ||
| SU1494864A3 (ru) | Способ получени мочевины | |
| US6586629B1 (en) | Method of introducing melamine off-gases into a urea plant | |
| EP3233792B1 (de) | Verfahren zur herstellung von harnstoff | |
| US4433146A (en) | Process for the preparation of melamine | |
| PL132177B1 (en) | Method of manufacture of urea | |
| US3120563A (en) | Urea preparation | |
| KR870001249B1 (ko) | 요소 합성법 | |
| CA2312763C (en) | Process for the preparation of urea | |
| US20120302789A1 (en) | Urea stripping process for the production of urea | |
| US4801747A (en) | Process for preparing urea | |
| JPS60339B2 (ja) | 尿素溶液を処理する方法及び装置 | |
| AU2002252800B9 (en) | Process for the preparation of urea | |
| US6649795B2 (en) | Process for decomposing a carbamate aqueous solution coming from the urea recovery section of a urea production plant | |
| AU2002221194B2 (en) | Process for the preparation of urea | |
| JPS56110662A (en) | Heat recovery in urea synthesis | |
| AU2002252800A1 (en) | Process for the preparation of urea | |
| PL47118B1 (de) |