NO831531L - Fremgangsmaate ved fremstilling av urea. - Google Patents
Fremgangsmaate ved fremstilling av urea.Info
- Publication number
- NO831531L NO831531L NO831531A NO831531A NO831531L NO 831531 L NO831531 L NO 831531L NO 831531 A NO831531 A NO 831531A NO 831531 A NO831531 A NO 831531A NO 831531 L NO831531 L NO 831531L
- Authority
- NO
- Norway
- Prior art keywords
- urea
- reaction zone
- zone
- stripping
- pressure
- Prior art date
Links
- 239000004202 carbamide Substances 0.000 title claims abstract description 143
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 141
- 238000000034 method Methods 0.000 title claims description 46
- 238000004519 manufacturing process Methods 0.000 title claims description 9
- 238000006243 chemical reaction Methods 0.000 claims abstract description 136
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 99
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 94
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 50
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 claims abstract description 48
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 claims abstract description 47
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 47
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 47
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 40
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 36
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 claims 2
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 42
- 239000007789 gas Substances 0.000 description 42
- 238000003786 synthesis reaction Methods 0.000 description 37
- 239000000047 product Substances 0.000 description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 22
- 238000011282 treatment Methods 0.000 description 14
- 239000011261 inert gas Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 10
- 238000009833 condensation Methods 0.000 description 8
- 230000005494 condensation Effects 0.000 description 8
- 238000005406 washing Methods 0.000 description 7
- 238000003776 cleavage reaction Methods 0.000 description 6
- 230000007017 scission Effects 0.000 description 6
- 238000010276 construction Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 239000013589 supplement Substances 0.000 description 4
- 150000002500 ions Chemical class 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- ATRRKUHOCOJYRX-UHFFFAOYSA-N Ammonium bicarbonate Chemical compound [NH4+].OC([O-])=O ATRRKUHOCOJYRX-UHFFFAOYSA-N 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000001099 ammonium carbonate Substances 0.000 description 2
- 235000012501 ammonium carbonate Nutrition 0.000 description 2
- 238000013459 approach Methods 0.000 description 2
- 239000004035 construction material Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 150000003672 ureas Chemical class 0.000 description 2
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 1
- 235000014548 Rubus moluccanus Nutrition 0.000 description 1
- 210000004381 amniotic fluid Anatomy 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 238000005878 carbamate elimination reaction Methods 0.000 description 1
- NMGFRGWSRHOQOP-UHFFFAOYSA-N carbamic acid;urea Chemical compound NC(N)=O.NC(O)=O NMGFRGWSRHOQOP-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000006482 condensation reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 101150099753 entD gene Proteins 0.000 description 1
- 235000013312 flour Nutrition 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 239000000499 gel Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 238000002161 passivation Methods 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000000376 reactant Substances 0.000 description 1
- 239000012429 reaction media Substances 0.000 description 1
- 230000003134 recirculating effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000011877 solvent mixture Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 238000003860 storage 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
- C07C273/08—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 ammoniacal liquor
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8104040A NL8104040A (nl) | 1981-09-01 | 1981-09-01 | Werkwijze voor de bereiding van ureum. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NO831531L true NO831531L (no) | 1983-04-29 |
Family
ID=19837996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO831531A NO831531L (no) | 1981-09-01 | 1983-04-29 | Fremgangsmaate ved fremstilling av urea. |
Country Status (20)
| Country | Link |
|---|---|
| US (1) | US4540813A (xx) |
| EP (1) | EP0086805B1 (xx) |
| JP (1) | JPS58501373A (xx) |
| KR (1) | KR840001131A (xx) |
| BR (1) | BR8207839A (xx) |
| DD (1) | DD203715A5 (xx) |
| DE (1) | DE3271938D1 (xx) |
| EG (1) | EG15838A (xx) |
| ES (1) | ES8306103A1 (xx) |
| GB (1) | GB2107705B (xx) |
| GR (1) | GR76908B (xx) |
| HU (1) | HUT34001A (xx) |
| IN (1) | IN157894B (xx) |
| IT (1) | IT1149071B (xx) |
| NL (1) | NL8104040A (xx) |
| NO (1) | NO831531L (xx) |
| OA (1) | OA07202A (xx) |
| PL (1) | PL238092A1 (xx) |
| WO (1) | WO1983000862A1 (xx) |
| ZA (1) | ZA825788B (xx) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8303424A (nl) * | 1983-10-06 | 1985-05-01 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8303425A (nl) * | 1983-10-06 | 1985-05-01 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| JPS61109760A (ja) * | 1984-11-02 | 1986-05-28 | Toyo Eng Corp | 尿素製造法 |
| JPH082859B2 (ja) * | 1987-02-24 | 1996-01-17 | 東洋エンジニアリング株式会社 | 尿素製造方法 |
| IN169678B (xx) * | 1987-08-13 | 1991-11-30 | Austral Pacific Fertilizers | |
| IT1232669B (it) * | 1989-09-15 | 1992-03-02 | Snam Progetti | Procedimento per la produzione di urea con elevato rendimento energetico. |
| CH679485A5 (xx) * | 1989-12-29 | 1992-02-28 | Ammonia Casale Sa | |
| NL1004977C2 (nl) * | 1997-01-13 | 1998-07-15 | Dsm Nv | Methode om de capaciteit van een bestaand ureum proces te verhogen. |
| DE60133894D1 (de) * | 2000-06-15 | 2008-06-19 | Urea Casale Sa | Verfahren und vorrichtung zur herstellung von harnstoff |
| NL1022526C2 (nl) * | 2003-01-30 | 2004-08-04 | Dsm Nv | Werkwijze voor het afscheiden van NH3, en optioneel tevens CO2 en H2O, uit een mengsel bevattende NH3, CO2 en H2O. |
| EP3398935A1 (en) * | 2017-05-05 | 2018-11-07 | Casale Sa | Process and plant for the synthesis of urea |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL102507C (xx) * | 1958-08-08 | 1900-01-01 | ||
| US3406201A (en) * | 1965-06-18 | 1968-10-15 | Exxon Research Engineering Co | Urea synthesis |
| DE1618867A1 (de) * | 1966-03-29 | 1972-03-30 | Sumitomo Chemical Co | Verfahren zur Herstellung von Harnstoff |
| CH468356A (de) * | 1966-04-05 | 1969-02-15 | Inventa Ag | Verfahren zur Aufarbeitung des bei der Synthese von Harnstoff aus Ammoniak und Kohlendioxyd in einem Synthesereaktor bei erhöhtem Druck und erhöhter Temperatur erhaltenen Synthesegemisches |
| US3759992A (en) * | 1970-06-29 | 1973-09-18 | I Mavrovic | Urea synthesis |
| 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 (xx) * | 1973-05-21 | 1974-11-25 | ||
| US4173615A (en) * | 1974-07-08 | 1979-11-06 | Mitsui Toatsu Chemicals, Incorporated | Chemical apparatus for corrosive materials |
| NL7612162A (nl) * | 1976-11-03 | 1978-05-08 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van een ureum- oplossing uit nh3 en co2. |
| JPS5811432B2 (ja) * | 1979-10-08 | 1983-03-02 | 三井東圧化学株式会社 | 尿素合成法 |
| JPS5750954A (en) * | 1980-09-12 | 1982-03-25 | Mitsui Toatsu Chem Inc | Synthesis of urea |
-
1981
- 1981-09-01 NL NL8104040A patent/NL8104040A/nl not_active Application Discontinuation
-
1982
- 1982-08-10 ZA ZA825788A patent/ZA825788B/xx unknown
- 1982-08-21 EG EG518/82A patent/EG15838A/xx active
- 1982-08-26 IN IN993/CAL/82A patent/IN157894B/en unknown
- 1982-08-26 KR KR1019820003854A patent/KR840001131A/ko unknown
- 1982-08-30 IT IT49047/82A patent/IT1149071B/it active
- 1982-08-30 DD DD82242879A patent/DD203715A5/de unknown
- 1982-08-30 GR GR69156A patent/GR76908B/el unknown
- 1982-08-31 PL PL23809282A patent/PL238092A1/xx unknown
- 1982-08-31 WO PCT/EP1982/000188 patent/WO1983000862A1/en active IP Right Grant
- 1982-08-31 ES ES515377A patent/ES8306103A1/es not_active Expired
- 1982-08-31 DE DE8282902530T patent/DE3271938D1/de not_active Expired
- 1982-08-31 US US06/496,317 patent/US4540813A/en not_active Expired - Fee Related
- 1982-08-31 BR BR8207839A patent/BR8207839A/pt unknown
- 1982-08-31 JP JP57502598A patent/JPS58501373A/ja active Pending
- 1982-08-31 HU HU823094A patent/HUT34001A/hu unknown
- 1982-08-31 EP EP82902530A patent/EP0086805B1/en not_active Expired
- 1982-09-01 GB GB08224953A patent/GB2107705B/en not_active Expired
- 1982-09-01 OA OA57794A patent/OA07202A/xx unknown
-
1983
- 1983-04-29 NO NO831531A patent/NO831531L/no unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ES515377A0 (es) | 1983-05-01 |
| WO1983000862A1 (en) | 1983-03-17 |
| OA07202A (fr) | 1984-04-30 |
| GB2107705A (en) | 1983-05-05 |
| KR840001131A (ko) | 1984-03-28 |
| GR76908B (xx) | 1984-09-04 |
| HUT34001A (en) | 1985-01-28 |
| PL238092A1 (en) | 1983-03-28 |
| EP0086805A1 (en) | 1983-08-31 |
| EP0086805B1 (en) | 1986-07-09 |
| JPS58501373A (ja) | 1983-08-18 |
| NL8104040A (nl) | 1983-04-05 |
| EG15838A (en) | 1987-07-30 |
| IT8249047A0 (it) | 1982-08-30 |
| ZA825788B (en) | 1983-06-29 |
| BR8207839A (pt) | 1983-09-06 |
| DD203715A5 (de) | 1983-11-02 |
| ES8306103A1 (es) | 1983-05-01 |
| GB2107705B (en) | 1985-09-04 |
| US4540813A (en) | 1985-09-10 |
| IT1149071B (it) | 1986-12-03 |
| DE3271938D1 (en) | 1986-08-14 |
| IN157894B (xx) | 1986-07-19 |
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