NO874557L - Fremgangsmaate ved fremstilling av urea. - Google Patents
Fremgangsmaate ved fremstilling av urea.Info
- Publication number
- NO874557L NO874557L NO874557A NO874557A NO874557L NO 874557 L NO874557 L NO 874557L NO 874557 A NO874557 A NO 874557A NO 874557 A NO874557 A NO 874557A NO 874557 L NO874557 L NO 874557L
- Authority
- NO
- Norway
- Prior art keywords
- zone
- urea
- gas mixture
- solution
- pressure
- Prior art date
Links
- 239000004202 carbamide Substances 0.000 title claims description 100
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 99
- 238000000034 method Methods 0.000 title claims description 28
- 238000004519 manufacturing process Methods 0.000 title claims description 8
- 239000000203 mixture Substances 0.000 claims description 74
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 69
- 238000009833 condensation Methods 0.000 claims description 68
- 230000005494 condensation Effects 0.000 claims description 68
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 54
- 230000015572 biosynthetic process Effects 0.000 claims description 52
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 49
- 238000003786 synthesis reaction Methods 0.000 claims description 48
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 45
- 229910021529 ammonia Inorganic materials 0.000 claims description 30
- 238000001704 evaporation Methods 0.000 claims description 30
- 230000008020 evaporation Effects 0.000 claims description 29
- 239000001569 carbon dioxide Substances 0.000 claims description 26
- 238000003776 cleavage reaction Methods 0.000 claims description 6
- 230000007017 scission Effects 0.000 claims description 6
- 239000000243 solution Substances 0.000 description 95
- 239000007789 gas Substances 0.000 description 82
- 229910001868 water Inorganic materials 0.000 description 39
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 25
- 239000007788 liquid Substances 0.000 description 18
- 238000010438 heat treatment Methods 0.000 description 13
- 239000007791 liquid phase Substances 0.000 description 12
- 239000012071 phase Substances 0.000 description 9
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 description 5
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000002156 mixing Methods 0.000 description 4
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 4
- 238000000926 separation method Methods 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 238000000354 decomposition reaction Methods 0.000 description 3
- 239000008246 gaseous mixture Substances 0.000 description 3
- 239000011261 inert gas Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- ULUZGMIUTMRARO-UHFFFAOYSA-N (carbamoylamino)urea Chemical compound NC(=O)NNC(N)=O ULUZGMIUTMRARO-UHFFFAOYSA-N 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000005554 pickling Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 150000003672 ureas Chemical class 0.000 description 1
- 230000008016 vaporization Effects 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
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 |
|---|---|---|---|
| NL8602770A NL8602770A (nl) | 1986-11-03 | 1986-11-03 | Werkwijze voor de bereiding van ureum. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NO874557D0 NO874557D0 (no) | 1987-11-02 |
| NO874557L true NO874557L (no) | 1988-05-04 |
Family
ID=19848769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO874557A NO874557L (no) | 1986-11-03 | 1987-11-02 | Fremgangsmaate ved fremstilling av urea. |
Country Status (21)
| Country | Link |
|---|---|
| EP (1) | EP0266840A1 (ko) |
| JP (1) | JPS63126857A (ko) |
| KR (1) | KR880006175A (ko) |
| CN (1) | CN87107627A (ko) |
| AU (1) | AU8058187A (ko) |
| BR (1) | BR8705820A (ko) |
| DD (1) | DD263526A5 (ko) |
| FI (1) | FI874809A (ko) |
| HU (1) | HUT48575A (ko) |
| IL (1) | IL84341A0 (ko) |
| MA (1) | MA21100A1 (ko) |
| NL (1) | NL8602770A (ko) |
| NO (1) | NO874557L (ko) |
| OA (1) | OA08692A (ko) |
| PH (1) | PH23601A (ko) |
| PL (1) | PL268571A1 (ko) |
| PT (1) | PT86069A (ko) |
| TN (1) | TNSN87124A1 (ko) |
| TR (1) | TR23058A (ko) |
| ZA (1) | ZA878215B (ko) |
| ZW (1) | ZW19887A1 (ko) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8502228A (nl) * | 1985-08-12 | 1987-03-02 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8800259A (nl) * | 1988-02-04 | 1989-09-01 | Stamicarbon | Werkwijze voor het concentreren van een ureumoplossing. |
| IT1232669B (it) * | 1989-09-15 | 1992-03-02 | Snam Progetti | Procedimento per la produzione di urea con elevato rendimento energetico. |
| CN1058704C (zh) * | 1996-01-11 | 2000-11-22 | 化学工业部上海化工研究院 | 二氧化碳汽提法尿素制备方法 |
| JP4358428B2 (ja) | 2000-11-01 | 2009-11-04 | 東洋エンジニアリング株式会社 | 尿素製造方法 |
| NL1028497C2 (nl) | 2005-03-09 | 2006-09-12 | Dsm Ip Assets Bv | Werkwijze voor de bereiding van een ureum-bevattende waterige stroom. |
| CN103772226A (zh) | 2009-05-01 | 2014-05-07 | 出光兴产株式会社 | α β不饱和羧酸-N,N二取代酰胺以及3-烷氧基羧酸-N,N二取代酰胺的制造方法 |
| MX364219B (es) * | 2012-05-03 | 2019-04-16 | Stamicarbon | Metodo y aparato para la produccion de urea a partir de amoniaco y dioxido de carbono. |
| CN107315034B (zh) | 2016-04-26 | 2021-06-08 | 新唐科技日本株式会社 | 气体检测装置以及氢检测方法 |
| WO2020130817A1 (en) * | 2018-12-21 | 2020-06-25 | Stamicarbon B.V. | Urea production process and plant with heat integration in low pressure recovery section |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5750954A (en) * | 1980-09-12 | 1982-03-25 | Mitsui Toatsu Chem Inc | Synthesis of urea |
| NL8303888A (nl) * | 1983-11-13 | 1985-06-03 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
-
1986
- 1986-11-03 NL NL8602770A patent/NL8602770A/nl not_active Application Discontinuation
-
1987
- 1987-10-30 BR BR8705820A patent/BR8705820A/pt unknown
- 1987-11-02 CN CN198787107627A patent/CN87107627A/zh active Pending
- 1987-11-02 FI FI874809A patent/FI874809A/fi not_active Application Discontinuation
- 1987-11-02 PH PH36015A patent/PH23601A/en unknown
- 1987-11-02 NO NO874557A patent/NO874557L/no unknown
- 1987-11-02 MA MA21341A patent/MA21100A1/fr unknown
- 1987-11-02 AU AU80581/87A patent/AU8058187A/en not_active Abandoned
- 1987-11-02 EP EP87202110A patent/EP0266840A1/en not_active Withdrawn
- 1987-11-02 JP JP62275872A patent/JPS63126857A/ja active Pending
- 1987-11-02 TR TR747/87A patent/TR23058A/xx unknown
- 1987-11-02 IL IL84341A patent/IL84341A0/xx unknown
- 1987-11-02 ZA ZA878215A patent/ZA878215B/xx unknown
- 1987-11-02 HU HU874916A patent/HUT48575A/hu unknown
- 1987-11-02 DD DD87308576A patent/DD263526A5/de not_active IP Right Cessation
- 1987-11-03 PL PL26857187A patent/PL268571A1/xx unknown
- 1987-11-03 ZW ZW198/87A patent/ZW19887A1/xx unknown
- 1987-11-03 TN TNTNSN87124A patent/TNSN87124A1/fr unknown
- 1987-11-03 KR KR870012305A patent/KR880006175A/ko not_active Application Discontinuation
- 1987-11-03 PT PT86069A patent/PT86069A/pt not_active Application Discontinuation
- 1987-11-03 OA OA59217A patent/OA08692A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| ZW19887A1 (en) | 1988-02-03 |
| NO874557D0 (no) | 1987-11-02 |
| TNSN87124A1 (fr) | 1990-01-01 |
| PH23601A (en) | 1989-09-11 |
| DD263526A5 (de) | 1989-01-04 |
| HUT48575A (en) | 1989-06-28 |
| CN87107627A (zh) | 1988-07-27 |
| FI874809A0 (fi) | 1987-11-02 |
| IL84341A0 (en) | 1988-04-29 |
| FI874809A (fi) | 1988-05-04 |
| KR880006175A (ko) | 1988-07-21 |
| EP0266840A1 (en) | 1988-05-11 |
| OA08692A (en) | 1989-03-31 |
| TR23058A (tr) | 1989-02-14 |
| ZA878215B (en) | 1988-04-28 |
| AU8058187A (en) | 1988-05-05 |
| NL8602770A (nl) | 1988-06-01 |
| PL268571A1 (en) | 1988-09-01 |
| MA21100A1 (fr) | 1988-07-01 |
| PT86069A (pt) | 1988-12-15 |
| JPS63126857A (ja) | 1988-05-30 |
| BR8705820A (pt) | 1988-06-28 |
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