NL8005442A - Werkwijze voor de bereiding van ureum. - Google Patents
Werkwijze voor de bereiding van ureum. Download PDFInfo
- Publication number
- NL8005442A NL8005442A NL8005442A NL8005442A NL8005442A NL 8005442 A NL8005442 A NL 8005442A NL 8005442 A NL8005442 A NL 8005442A NL 8005442 A NL8005442 A NL 8005442A NL 8005442 A NL8005442 A NL 8005442A
- Authority
- NL
- Netherlands
- Prior art keywords
- ammonia
- carbonic acid
- temperature
- synthesis reactor
- urea
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims description 40
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims description 39
- 239000004202 carbamide Substances 0.000 title claims description 39
- 238000002360 preparation method Methods 0.000 title claims description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 115
- 230000015572 biosynthetic process Effects 0.000 claims description 67
- 229910021529 ammonia Inorganic materials 0.000 claims description 56
- 238000003786 synthesis reaction Methods 0.000 claims description 54
- 239000000203 mixture Substances 0.000 claims description 37
- 230000008569 process Effects 0.000 claims description 28
- 239000007788 liquid Substances 0.000 claims description 24
- 239000011541 reaction mixture Substances 0.000 claims description 15
- 238000000926 separation method Methods 0.000 claims description 11
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000007664 blowing Methods 0.000 claims description 8
- 239000008246 gaseous mixture Substances 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 3
- 230000004044 response Effects 0.000 claims description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-N carbonic acid Chemical compound OC(O)=O BVKZGUZCCUSVTD-UHFFFAOYSA-N 0.000 claims 13
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 42
- 239000007789 gas Substances 0.000 description 38
- 239000000463 material Substances 0.000 description 17
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 description 16
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 description 16
- 239000000126 substance Substances 0.000 description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 14
- 229910002092 carbon dioxide Inorganic materials 0.000 description 9
- 239000001569 carbon dioxide Substances 0.000 description 9
- 230000005484 gravity Effects 0.000 description 7
- 239000000243 solution Substances 0.000 description 7
- 238000009833 condensation Methods 0.000 description 4
- 230000005494 condensation Effects 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000010409 thin film Substances 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 description 1
- 239000007795 chemical reaction product Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000007792 gaseous phase Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012071 phase Substances 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000000153 supplemental effect 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)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12886079 | 1979-10-08 | ||
| JP54128860A JPS5811432B2 (ja) | 1979-10-08 | 1979-10-08 | 尿素合成法 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| NL8005442A true NL8005442A (nl) | 1981-04-10 |
Family
ID=14995151
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL8005442A NL8005442A (nl) | 1979-10-08 | 1980-10-01 | Werkwijze voor de bereiding van ureum. |
Country Status (12)
| Country | Link |
|---|---|
| US (1) | US4301299A (cs) |
| JP (1) | JPS5811432B2 (cs) |
| AR (1) | AR222576A1 (cs) |
| BR (1) | BR8006441A (cs) |
| CA (1) | CA1143747A (cs) |
| DE (1) | DE3037184A1 (cs) |
| EG (1) | EG14636A (cs) |
| FR (1) | FR2467196A1 (cs) |
| GB (1) | GB2059965B (cs) |
| IN (1) | IN151914B (cs) |
| IT (1) | IT1132914B (cs) |
| NL (1) | NL8005442A (cs) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746954A (en) * | 1980-09-05 | 1982-03-17 | Mitsui Toatsu Chem Inc | Synthesis of urea |
| JPS5750954A (en) * | 1980-09-12 | 1982-03-25 | Mitsui Toatsu Chem Inc | Synthesis of urea |
| NL8104040A (nl) * | 1981-09-01 | 1983-04-05 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| JPS5867661A (ja) * | 1981-10-16 | 1983-04-22 | Mitsui Toatsu Chem Inc | 尿素合成法 |
| EP0096151B1 (en) * | 1982-06-03 | 1986-07-23 | Montedison S.p.A. | Method for avoiding the corrosion of strippers in urea manufacturing plants |
| EP0180704B1 (fr) * | 1984-05-19 | 1988-10-12 | Ammonia Casale S.A. | Procédé perfectionné pour la production de l'urée |
| CH679485A5 (cs) * | 1989-12-29 | 1992-02-28 | Ammonia Casale Sa | |
| US6231632B1 (en) | 1999-05-25 | 2001-05-15 | Engelhard Corporation | Urea processing agent |
| EA035936B1 (ru) * | 2015-09-08 | 2020-09-03 | Тойо Инджиниринг Корпорейшн | Способ получения мочевины и установка для получения мочевины |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2212847A (en) * | 1940-08-27 | Process for the recovery anb keuti- | ||
| NL250349A (cs) * | 1960-04-08 | |||
| NL137580B (cs) * | 1962-03-22 | 1900-01-01 | ||
| US3317601A (en) * | 1962-08-08 | 1967-05-02 | Toyo Koatsu Ind Inc | Synthesizing urea |
| CH498811A (de) * | 1967-05-22 | 1970-11-15 | Chemical Construction Corp | Verfahren zur Herstellung von Harnstoff aus Ammoniak und Kohlendioxyd |
| US3876696A (en) * | 1968-09-03 | 1975-04-08 | Snam Progetti | Process for the production of urea having a low carbamate content |
| EG10651A (en) * | 1970-04-02 | 1977-10-31 | Snam Progetti | Process for prevention reactors corrosion during production of urea |
| SU452558A1 (ru) * | 1973-01-02 | 1974-12-05 | Ленинградское Специализированное Пуско-Наладочное Управление | Способ автоматического управлени работой промывной колонны в производстве карбамида |
| NL7307036A (cs) * | 1973-05-21 | 1974-11-25 | ||
| NL174548C (nl) * | 1977-05-05 | 1988-05-16 | Montedison Spa | Werkwijze voor het bereiden van ureum door reaktie van ammoniak en kooldioxyde. |
-
1979
- 1979-10-08 JP JP54128860A patent/JPS5811432B2/ja not_active Expired
-
1980
- 1980-09-25 IN IN1089/CAL/80A patent/IN151914B/en unknown
- 1980-10-01 NL NL8005442A patent/NL8005442A/nl not_active Application Discontinuation
- 1980-10-02 DE DE19803037184 patent/DE3037184A1/de not_active Withdrawn
- 1980-10-03 IT IT25115/80A patent/IT1132914B/it active
- 1980-10-07 GB GB8032233A patent/GB2059965B/en not_active Expired
- 1980-10-07 BR BR8006441A patent/BR8006441A/pt unknown
- 1980-10-07 CA CA000361978A patent/CA1143747A/en not_active Expired
- 1980-10-08 EG EG618/80A patent/EG14636A/xx active
- 1980-10-08 FR FR8021532A patent/FR2467196A1/fr active Granted
- 1980-10-08 AR AR282818A patent/AR222576A1/es active
- 1980-11-03 US US06/203,595 patent/US4301299A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE3037184A1 (de) | 1981-04-16 |
| US4301299A (en) | 1981-11-17 |
| GB2059965A (en) | 1981-04-29 |
| IN151914B (cs) | 1983-09-03 |
| FR2467196A1 (fr) | 1981-04-17 |
| EG14636A (en) | 1985-06-30 |
| IT8025115A0 (it) | 1980-10-03 |
| FR2467196B1 (cs) | 1985-02-15 |
| GB2059965B (en) | 1983-09-07 |
| JPS5653644A (en) | 1981-05-13 |
| JPS5811432B2 (ja) | 1983-03-02 |
| BR8006441A (pt) | 1981-04-14 |
| CA1143747A (en) | 1983-03-29 |
| AR222576A1 (es) | 1981-05-29 |
| IT1132914B (it) | 1986-07-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CNR | Transfer of rights (patent application after its laying open for public inspection) |
Free format text: TOYO ENGINEERING CORPORATION |
|
| A85 | Still pending on 85-01-01 | ||
| BA | A request for search or an international-type search has been filed | ||
| BB | A search report has been drawn up | ||
| BC | A request for examination has been filed | ||
| BV | The patent application has lapsed |