GB1292515A - Process for producing urea - Google Patents
Process for producing ureaInfo
- Publication number
- GB1292515A GB1292515A GB03413/70A GB1341370A GB1292515A GB 1292515 A GB1292515 A GB 1292515A GB 03413/70 A GB03413/70 A GB 03413/70A GB 1341370 A GB1341370 A GB 1341370A GB 1292515 A GB1292515 A GB 1292515A
- Authority
- GB
- United Kingdom
- Prior art keywords
- aqueous solution
- urea
- reaction vessel
- gaseous phase
- pressure
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract 3
- 239000004202 carbamide Substances 0.000 title abstract 3
- 238000000034 method Methods 0.000 title abstract 3
- 239000007864 aqueous solution Substances 0.000 abstract 4
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 2
- 238000006243 chemical reaction Methods 0.000 abstract 2
- 238000000354 decomposition reaction Methods 0.000 abstract 2
- 239000007792 gaseous phase Substances 0.000 abstract 2
- 229910021529 ammonia Inorganic materials 0.000 abstract 1
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 1
- 239000001569 carbon dioxide Substances 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000002317 scanning near-field acoustic microscopy Methods 0.000 abstract 1
- 239000007858 starting material Substances 0.000 abstract 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
- C07C273/14—Separation; Purification; Stabilisation; Use of additives
- C07C273/16—Separation; Purification
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
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 |
|---|---|---|---|
| IT1507269 | 1969-04-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1292515A true GB1292515A (en) | 1972-10-11 |
Family
ID=11146229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB03413/70A Expired GB1292515A (en) | 1969-04-04 | 1970-03-19 | Process for producing urea |
Country Status (17)
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899813A (en) * | 1984-04-20 | 1990-02-13 | Snamprogetti S.P.A. | Process and apparatus for the synthesis of urea and material used in it |
| WO2013104638A1 (en) | 2012-01-09 | 2013-07-18 | Saipem S.P.A | Process for the synthesis of urea comprising a passivation stream at the stripper bottom |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3259661B2 (ja) * | 1997-06-27 | 2002-02-25 | 株式会社イトーキクレビオ | パネル体連結装置 |
| DE102019208859A1 (de) | 2019-06-18 | 2020-12-24 | Skw Stickstoffwerke Piesteritz Gmbh | Verfahren zur kontinuierlichen Herstellung reiner Harnstofflösungen durch Verwertung von Prozesswasser |
-
1970
- 1970-03-19 GB GB03413/70A patent/GB1292515A/en not_active Expired
- 1970-03-19 FR FR7009891A patent/FR2042135A5/fr not_active Expired
- 1970-03-20 BE BE747769D patent/BE747769A/xx not_active IP Right Cessation
- 1970-03-26 ZM ZM35/70A patent/ZM3570A1/xx unknown
- 1970-03-27 LU LU60616D patent/LU60616A1/xx unknown
- 1970-03-27 AT AT2890/70A patent/AT305304B/de not_active IP Right Cessation
- 1970-03-31 YU YU852/70A patent/YU35113B/xx unknown
- 1970-03-31 CH CH470570A patent/CH514555A/fr not_active IP Right Cessation
- 1970-04-01 CA CA078,921A patent/CA949918A/en not_active Expired
- 1970-04-02 CS CS2186A patent/CS152471B2/cs unknown
- 1970-04-02 DE DE19702015781 patent/DE2015781B2/de not_active Ceased
- 1970-04-03 ES ES378592A patent/ES378592A1/es not_active Expired
- 1970-04-03 RO RO7062975A patent/RO69432A/ro unknown
- 1970-04-03 JP JP45027937A patent/JPS5238017B1/ja active Pending
- 1970-04-03 BR BR217988/70A patent/BR7017988D0/pt unknown
- 1970-04-03 IE IE413/70A patent/IE34603B1/xx unknown
- 1970-04-06 NL NL7004886A patent/NL7004886A/xx unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4899813A (en) * | 1984-04-20 | 1990-02-13 | Snamprogetti S.P.A. | Process and apparatus for the synthesis of urea and material used in it |
| WO2013104638A1 (en) | 2012-01-09 | 2013-07-18 | Saipem S.P.A | Process for the synthesis of urea comprising a passivation stream at the stripper bottom |
| US9199926B2 (en) | 2012-01-09 | 2015-12-01 | Saipem S.P.A. | Process for the synthesis of urea comprising a passivation stream at the stripper bottom |
Also Published As
| Publication number | Publication date |
|---|---|
| AT305304B (de) | 1973-01-15 |
| RO69432A (ro) | 1980-12-30 |
| DE2015781A1 (de) | 1970-10-08 |
| IE34603L (en) | 1970-10-04 |
| YU85270A (en) | 1979-12-31 |
| FR2042135A5 (enrdf_load_stackoverflow) | 1971-02-05 |
| CH514555A (fr) | 1971-10-31 |
| LU60616A1 (enrdf_load_stackoverflow) | 1970-05-28 |
| NL7004886A (enrdf_load_stackoverflow) | 1970-10-06 |
| ES378592A1 (es) | 1972-06-16 |
| DE2015781B2 (de) | 1973-05-03 |
| BE747769A (fr) | 1970-08-31 |
| BR7017988D0 (pt) | 1973-04-12 |
| JPS5238017B1 (enrdf_load_stackoverflow) | 1977-09-27 |
| CS152471B2 (enrdf_load_stackoverflow) | 1973-12-19 |
| CA949918A (en) | 1974-06-25 |
| YU35113B (en) | 1980-09-25 |
| ZM3570A1 (en) | 1971-07-22 |
| IE34603B1 (en) | 1975-06-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |