DD263526A5 - Verfahren zur herstellung von harnstoff - Google Patents
Verfahren zur herstellung von harnstoff Download PDFInfo
- Publication number
- DD263526A5 DD263526A5 DD87308576A DD30857687A DD263526A5 DD 263526 A5 DD263526 A5 DD 263526A5 DD 87308576 A DD87308576 A DD 87308576A DD 30857687 A DD30857687 A DD 30857687A DD 263526 A5 DD263526 A5 DD 263526A5
- Authority
- DD
- German Democratic Republic
- Prior art keywords
- urea
- zone
- condensation
- gas mixture
- solution
- Prior art date
Links
- 239000004202 carbamide Substances 0.000 title claims abstract description 102
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 101
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 8
- 239000000203 mixture Substances 0.000 claims abstract description 83
- 238000009833 condensation Methods 0.000 claims abstract description 70
- 230000005494 condensation Effects 0.000 claims abstract description 70
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 63
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 52
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 52
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 49
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims abstract description 35
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 31
- 238000001704 evaporation Methods 0.000 claims abstract description 31
- 230000008020 evaporation Effects 0.000 claims abstract description 31
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 26
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 26
- 238000000034 method Methods 0.000 claims abstract description 25
- 238000000354 decomposition reaction Methods 0.000 claims description 18
- 239000008246 gaseous mixture Substances 0.000 claims description 5
- 239000002904 solvent Substances 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 8
- 229920002994 synthetic fiber Polymers 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 84
- 239000007789 gas Substances 0.000 description 80
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 22
- 239000007788 liquid Substances 0.000 description 17
- 238000010438 heat treatment Methods 0.000 description 15
- 239000007791 liquid phase Substances 0.000 description 13
- 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
- 239000007864 aqueous solution Substances 0.000 description 5
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 5
- 239000007795 chemical reaction product Substances 0.000 description 2
- 239000011261 inert gas Substances 0.000 description 2
- 238000005201 scrubbing Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 241000251730 Chondrichthyes Species 0.000 description 1
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- OHJMTUPIZMNBFR-UHFFFAOYSA-N biuret Chemical compound NC(=O)NC(N)=O OHJMTUPIZMNBFR-UHFFFAOYSA-N 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 239000002516 radical scavenger Substances 0.000 description 1
- 239000011541 reaction mixture Substances 0.000 description 1
- 230000001105 regulatory effect Effects 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
- 238000002255 vaccination 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
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 (1)
| Publication Number | Publication Date |
|---|---|
| DD263526A5 true DD263526A5 (de) | 1989-01-04 |
Family
ID=19848769
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DD87308576A DD263526A5 (de) | 1986-11-03 | 1987-11-02 | Verfahren zur herstellung von harnstoff |
Country Status (21)
| Country | Link |
|---|---|
| EP (1) | EP0266840A1 (fr) |
| JP (1) | JPS63126857A (fr) |
| KR (1) | KR880006175A (fr) |
| CN (1) | CN87107627A (fr) |
| AU (1) | AU8058187A (fr) |
| BR (1) | BR8705820A (fr) |
| DD (1) | DD263526A5 (fr) |
| FI (1) | FI874809A7 (fr) |
| HU (1) | HUT48575A (fr) |
| IL (1) | IL84341A0 (fr) |
| MA (1) | MA21100A1 (fr) |
| NL (1) | NL8602770A (fr) |
| NO (1) | NO874557L (fr) |
| OA (1) | OA08692A (fr) |
| PH (1) | PH23601A (fr) |
| PL (1) | PL268571A1 (fr) |
| PT (1) | PT86069A (fr) |
| TN (1) | TNSN87124A1 (fr) |
| TR (1) | TR23058A (fr) |
| ZA (1) | ZA878215B (fr) |
| ZW (1) | ZW19887A1 (fr) |
Families Citing this family (11)
| 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. |
| ZA96686B (en) * | 1995-02-01 | 1996-08-16 | Urea Casale Sa | Process and plant for the production of urea with high conversion yield and low energy consumption |
| 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. |
| EP2664610A1 (fr) | 2009-05-01 | 2013-11-20 | Idemitsu Kosan Co., Ltd | Procédé de production d'acide-N carboxylique alpha, béta non saturé, amide N-disubstitué et procédé de production d'acide 3-alkoxycarboxylique, amide N-disubstitué |
| WO2013165246A1 (fr) | 2012-05-03 | 2013-11-07 | Stamicarbon B.V. | Procédé et appareil de production d'urée à partir d'ammoniac et de dioxyde de carbone |
| 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 |
| AU2019405414B2 (en) * | 2018-12-21 | 2022-06-30 | 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 DD DD87308576A patent/DD263526A5/de not_active IP Right Cessation
- 1987-11-02 HU HU874916A patent/HUT48575A/hu unknown
- 1987-11-02 AU AU80581/87A patent/AU8058187A/en not_active Abandoned
- 1987-11-02 PH PH36015A patent/PH23601A/en unknown
- 1987-11-02 ZA ZA878215A patent/ZA878215B/xx unknown
- 1987-11-02 IL IL84341A patent/IL84341A0/xx unknown
- 1987-11-02 JP JP62275872A patent/JPS63126857A/ja active Pending
- 1987-11-02 NO NO874557A patent/NO874557L/no unknown
- 1987-11-02 CN CN198787107627A patent/CN87107627A/zh active Pending
- 1987-11-02 TR TR747/87A patent/TR23058A/xx unknown
- 1987-11-02 MA MA21341A patent/MA21100A1/fr unknown
- 1987-11-02 FI FI874809A patent/FI874809A7/fi not_active Application Discontinuation
- 1987-11-02 EP EP87202110A patent/EP0266840A1/fr not_active Withdrawn
- 1987-11-03 PL PL26857187A patent/PL268571A1/xx unknown
- 1987-11-03 OA OA59217A patent/OA08692A/xx unknown
- 1987-11-03 TN TNTNSN87124A patent/TNSN87124A1/fr unknown
- 1987-11-03 PT PT86069A patent/PT86069A/pt not_active Application Discontinuation
- 1987-11-03 ZW ZW198/87A patent/ZW19887A1/xx unknown
- 1987-11-03 KR KR870012305A patent/KR880006175A/ko not_active Ceased
Also Published As
| Publication number | Publication date |
|---|---|
| PH23601A (en) | 1989-09-11 |
| FI874809L (fi) | 1988-05-04 |
| HUT48575A (en) | 1989-06-28 |
| PL268571A1 (en) | 1988-09-01 |
| NO874557D0 (no) | 1987-11-02 |
| TNSN87124A1 (fr) | 1990-01-01 |
| OA08692A (en) | 1989-03-31 |
| EP0266840A1 (fr) | 1988-05-11 |
| MA21100A1 (fr) | 1988-07-01 |
| AU8058187A (en) | 1988-05-05 |
| JPS63126857A (ja) | 1988-05-30 |
| KR880006175A (ko) | 1988-07-21 |
| ZA878215B (en) | 1988-04-28 |
| NL8602770A (nl) | 1988-06-01 |
| TR23058A (tr) | 1989-02-14 |
| CN87107627A (zh) | 1988-07-27 |
| BR8705820A (pt) | 1988-06-28 |
| IL84341A0 (en) | 1988-04-29 |
| PT86069A (pt) | 1988-12-15 |
| FI874809A7 (fi) | 1988-05-04 |
| ZW19887A1 (en) | 1988-02-03 |
| FI874809A0 (fi) | 1987-11-02 |
| NO874557L (no) | 1988-05-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| DE69016540T2 (de) | Verfahren mit hoher Energieleistung zur Herstellung von Harnstoff. | |
| DE60133445T2 (de) | Verfahren zur Synthese von Harnstoff | |
| DE2654883C2 (fr) | ||
| DE3136137C2 (de) | Verfahren zur synthese von harnstoff | |
| DE69708627T2 (de) | Verfahren zur kombinierten Erzeugung von Ammoniak und Harnstoff | |
| DE2165711C3 (de) | Verfahren zu der Herstellung von Harnstoff | |
| CH634553A5 (de) | Verfahren zur herstellung von harnstoff. | |
| DE69200785T2 (de) | Verfahren zur Herstellung von Harnstoff mit hoher Energieausbeute. | |
| DD263526A5 (de) | Verfahren zur herstellung von harnstoff | |
| DE69226010T2 (de) | Verfahren zur Herstellung von Harnstoff mit Reaktionsräumen unterschiedlicher Ausbeuten | |
| DE3237653C2 (de) | Verfahren zur Herstellung von Harnstoff | |
| DE2241148C3 (de) | Verfahren zur Herstellung von Harnstoff | |
| DE2329733A1 (de) | Verfahren zur herstellung von harnstoff | |
| DD203715A5 (de) | Verfahren zur herstellung von harnstoff | |
| DD233124A5 (de) | Verfahren zur herstellung von harnstoff | |
| DE2521507A1 (de) | Verfahren zum behandeln von beim konzentrieren einer waessrigen harnstoffloesung gebildetem wasserdampf | |
| DE2814800A1 (de) | Verfahren zur herstellung von guanidin | |
| DE2132081A1 (de) | Verfahren zur Harnstoffsynthese | |
| DE2559112C3 (de) | Verfahren zur Rückgewinnung von Ammoniak und Kohlendioxid aus Wasserdampf, der beim Konzentrieren einer wässrigen Harnstofflösung erhalten wird | |
| DE60204231T2 (de) | Verfahren zur herstellung einer ammoniumcarbamatlösung aus einem gemisch von ammonia, wasser und kohlenstoffdioxid | |
| DE1299295B (de) | Verfahren zur Herstellung von Harnstoff | |
| DD201780A5 (de) | Verfahren zur herstellung von harnstoff | |
| DE2748640C2 (de) | Verfahren zur Gewinnung von NH↓3↓ und CO↓2↓ aus einer wässrigen Harnstoffsyntheselösung | |
| WO2008138809A2 (fr) | Procédé et dispositif de traitement d'une solution de carbonate d'ammonium | |
| DD278781A5 (de) | Verfahren zum konzentrieren einer harnstoffloesung |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ENJ | Ceased due to non-payment of renewal fee |