NL8201652A - Werkwijze voor de bereiding van ureum. - Google Patents
Werkwijze voor de bereiding van ureum. Download PDFInfo
- Publication number
- NL8201652A NL8201652A NL8201652A NL8201652A NL8201652A NL 8201652 A NL8201652 A NL 8201652A NL 8201652 A NL8201652 A NL 8201652A NL 8201652 A NL8201652 A NL 8201652A NL 8201652 A NL8201652 A NL 8201652A
- Authority
- NL
- Netherlands
- Prior art keywords
- zone
- urea
- solution
- pressure
- carbamate
- Prior art date
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 90
- 239000004202 carbamide Substances 0.000 title claims description 89
- 238000000034 method Methods 0.000 title claims description 47
- 238000002360 preparation method Methods 0.000 title claims description 6
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 122
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical group N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 118
- 238000009833 condensation Methods 0.000 claims description 94
- 230000005494 condensation Effects 0.000 claims description 94
- 239000007789 gas Substances 0.000 claims description 80
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 claims description 66
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 61
- 230000015572 biosynthetic process Effects 0.000 claims description 59
- 239000000203 mixture Substances 0.000 claims description 53
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 53
- 238000003786 synthesis reaction Methods 0.000 claims description 49
- 229910001868 water Inorganic materials 0.000 claims description 46
- 229910021529 ammonia Inorganic materials 0.000 claims description 43
- 239000001569 carbon dioxide Substances 0.000 claims description 42
- 230000007062 hydrolysis Effects 0.000 claims description 20
- 238000006460 hydrolysis reaction Methods 0.000 claims description 20
- 238000001704 evaporation Methods 0.000 claims description 5
- 230000008020 evaporation Effects 0.000 claims description 5
- 239000011261 inert gas Substances 0.000 claims description 5
- 239000007787 solid Substances 0.000 claims description 5
- 238000002425 crystallisation Methods 0.000 claims description 4
- 230000008025 crystallization Effects 0.000 claims description 4
- 239000000243 solution Substances 0.000 description 89
- 238000003795 desorption Methods 0.000 description 26
- 239000007788 liquid Substances 0.000 description 19
- 238000006243 chemical reaction Methods 0.000 description 17
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 14
- 238000010438 heat treatment Methods 0.000 description 12
- 239000012071 phase Substances 0.000 description 7
- 238000005406 washing Methods 0.000 description 7
- 239000007791 liquid phase Substances 0.000 description 6
- 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
- 238000000354 decomposition reaction Methods 0.000 description 4
- 239000000047 product Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 230000002745 absorbent Effects 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 230000006835 compression Effects 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 235000011950 custard Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- NPPQSCRMBWNHMW-UHFFFAOYSA-N Meprobamate Chemical compound NC(=O)OCC(C)(CCC)COC(N)=O NPPQSCRMBWNHMW-UHFFFAOYSA-N 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 238000009835 boiling Methods 0.000 description 1
- 150000004657 carbamic acid derivatives Chemical class 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 230000009089 cytolysis Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 239000003337 fertilizer Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 239000002440 industrial waste 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
- 239000011541 reaction mixture Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000013589 supplement 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8201652A NL8201652A (nl) | 1982-04-21 | 1982-04-21 | Werkwijze voor de bereiding van ureum. |
| EP83200545A EP0093466B1 (en) | 1982-04-21 | 1983-04-15 | Process for the preparation of urea |
| DE8383200545T DE3360512D1 (en) | 1982-04-21 | 1983-04-15 | Process for the preparation of urea |
| US06/487,091 US4539077A (en) | 1982-04-21 | 1983-04-21 | Process for the preparation of urea |
| JP58070832A JPS58189153A (ja) | 1982-04-21 | 1983-04-21 | 尿素の製造方法 |
| IN520/CAL/83A IN159537B (instruction) | 1982-04-21 | 1983-04-28 |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8201652A NL8201652A (nl) | 1982-04-21 | 1982-04-21 | Werkwijze voor de bereiding van ureum. |
| NL8201652 | 1982-04-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8201652A true NL8201652A (nl) | 1983-11-16 |
Family
ID=19839623
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8201652A NL8201652A (nl) | 1982-04-21 | 1982-04-21 | Werkwijze voor de bereiding van ureum. |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4539077A (instruction) |
| EP (1) | EP0093466B1 (instruction) |
| JP (1) | JPS58189153A (instruction) |
| DE (1) | DE3360512D1 (instruction) |
| IN (1) | IN159537B (instruction) |
| NL (1) | NL8201652A (instruction) |
Families Citing this family (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8303888A (nl) * | 1983-11-13 | 1985-06-03 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| EP0297738B1 (en) * | 1987-06-29 | 1992-03-25 | United Kingdom Atomic Energy Authority | A method for the treatment of waste matter |
| NL8800259A (nl) * | 1988-02-04 | 1989-09-01 | Stamicarbon | Werkwijze voor het concentreren van een ureumoplossing. |
| US4966654A (en) * | 1988-09-19 | 1990-10-30 | Awd Technologies, Inc. | Soil and groundwater remediation system |
| IT1240675B (it) * | 1990-04-24 | 1993-12-17 | Snam Progetti | Procedimento per la concentrazione sotto vuoto di soluzioni di urea |
| US5316554A (en) * | 1992-06-03 | 1994-05-31 | Hansen Charles N | Method for processing crystalline ammonium carbamate |
| US5352335A (en) * | 1992-11-09 | 1994-10-04 | Albemarle Corporation | Groundwater treatment process |
| US5779861A (en) * | 1993-09-03 | 1998-07-14 | Farmland Industries, Inc. | Method for treating process condensate |
| US5643420A (en) * | 1993-09-03 | 1997-07-01 | Farmland Industries, Inc. | Method for treating process condensate |
| US5385646A (en) * | 1993-09-03 | 1995-01-31 | Farmland Industries, Inc. | Method of treating chemical process effluent |
| CA2141886E (en) | 1994-05-11 | 1999-10-12 | Federico Zardi | Reactor for two-phase reactions, in particular for urea synthesis at high pressure and temperature |
| DE69520843T2 (de) * | 1994-12-23 | 2001-12-20 | Urea Casale S.A., Lugano | Verfahren für die modernisierung einer anlage zur herstellung von harnstoff |
| CA2146070C (en) * | 1995-03-15 | 2002-01-29 | Kees Jonckers | Improved reactor for the synthesis of urea |
| US5597454A (en) * | 1995-04-06 | 1997-01-28 | Lee; Jing M. | Process for producing urea |
| EP0905127B1 (en) * | 1997-09-20 | 2001-11-28 | Urea Casale S.A. | Process for combined production of ammonia and urea |
| 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. |
| EP3782979A1 (en) * | 2019-08-20 | 2021-02-24 | Yara International ASA | Preparation of urea solution and facility to do so |
| CN114901373B (zh) * | 2019-12-30 | 2022-12-23 | 斯塔米卡邦有限公司 | 使用多个蒸发器的尿素生产 |
| CA3166402C (en) | 2019-12-30 | 2023-08-15 | Stamicarbon B.V. | Ammonia removal from urea finishing |
| WO2022260524A1 (en) * | 2021-06-11 | 2022-12-15 | Stamicarbon B.V. | Urea production with triple mp streams |
Family Cites Families (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2701262A (en) * | 1953-02-02 | 1955-02-01 | Chemical Construction Corp | Urea purification |
| DE1248639B (instruction) * | 1959-07-03 | |||
| US3232982A (en) * | 1960-01-08 | 1966-02-01 | Pullman Inc | Urea synthesis |
| US3172911A (en) * | 1961-06-16 | 1965-03-09 | Urea synthesis process | |
| US3759992A (en) * | 1970-06-29 | 1973-09-18 | I Mavrovic | Urea synthesis |
| US3824283A (en) * | 1970-11-02 | 1974-07-16 | Chemical Construction Corp | Urea synthesis process |
| 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 |
| NL7612162A (nl) * | 1976-11-03 | 1978-05-08 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van een ureum- oplossing uit nh3 en co2. |
| US4231839A (en) * | 1979-01-30 | 1980-11-04 | Cf Industries, Inc. | After-treatment processes and apparatus, especially for urea and ammonium nitrate plants |
| DD146752A3 (de) * | 1980-01-08 | 1981-03-04 | Lothar Guenther | Verfahren zur reinigung von prozessabwasser der harnstoffsynthese |
| CA2601662A1 (en) * | 2006-09-18 | 2008-03-18 | Matthias Mullenborn | Wireless interface for programming hearing assistance devices |
-
1982
- 1982-04-21 NL NL8201652A patent/NL8201652A/nl not_active Application Discontinuation
-
1983
- 1983-04-15 EP EP83200545A patent/EP0093466B1/en not_active Expired
- 1983-04-15 DE DE8383200545T patent/DE3360512D1/de not_active Expired
- 1983-04-21 JP JP58070832A patent/JPS58189153A/ja active Pending
- 1983-04-21 US US06/487,091 patent/US4539077A/en not_active Expired - Fee Related
- 1983-04-28 IN IN520/CAL/83A patent/IN159537B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| DE3360512D1 (en) | 1985-09-12 |
| US4539077A (en) | 1985-09-03 |
| JPS58189153A (ja) | 1983-11-04 |
| IN159537B (instruction) | 1987-05-23 |
| EP0093466B1 (en) | 1985-08-07 |
| EP0093466A1 (en) | 1983-11-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A1B | A search report has been drawn up | ||
| A85 | Still pending on 85-01-01 | ||
| BV | The patent application has lapsed |