GB1124868A - Preparation of urea - Google Patents
Preparation of ureaInfo
- Publication number
- GB1124868A GB1124868A GB1569767A GB1569767A GB1124868A GB 1124868 A GB1124868 A GB 1124868A GB 1569767 A GB1569767 A GB 1569767A GB 1569767 A GB1569767 A GB 1569767A GB 1124868 A GB1124868 A GB 1124868A
- Authority
- GB
- United Kingdom
- Prior art keywords
- synthesis
- urea
- ammonia
- expulsion
- reaction
- 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 6
- 239000004202 carbamide Substances 0.000 title abstract 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 12
- 238000003786 synthesis reaction Methods 0.000 abstract 8
- 230000015572 biosynthetic process Effects 0.000 abstract 7
- 229910021529 ammonia Inorganic materials 0.000 abstract 6
- 238000006243 chemical reaction Methods 0.000 abstract 5
- 239000000203 mixture Substances 0.000 abstract 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 4
- 238000000034 method Methods 0.000 abstract 4
- 239000012159 carrier gas Substances 0.000 abstract 3
- 239000000470 constituent Substances 0.000 abstract 3
- 239000007789 gas Substances 0.000 abstract 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 abstract 2
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 2
- 239000001569 carbon dioxide Substances 0.000 abstract 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 abstract 1
- 239000006096 absorbing agent Substances 0.000 abstract 1
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000000605 extraction Methods 0.000 abstract 1
- 239000001257 hydrogen Substances 0.000 abstract 1
- 229910052739 hydrogen Inorganic materials 0.000 abstract 1
- 239000011261 inert gas Substances 0.000 abstract 1
- 229910052757 nitrogen Inorganic materials 0.000 abstract 1
- 238000000926 separation method Methods 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
-
- 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 (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH499766A CH468356A (de) | 1966-04-05 | 1966-04-05 | Verfahren zur Aufarbeitung des bei der Synthese von Harnstoff aus Ammoniak und Kohlendioxyd in einem Synthesereaktor bei erhöhtem Druck und erhöhter Temperatur erhaltenen Synthesegemisches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1124868A true GB1124868A (en) | 1968-08-21 |
Family
ID=4286155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1569767A Expired GB1124868A (en) | 1966-04-05 | 1967-04-05 | Preparation of urea |
Country Status (7)
| Country | Link |
|---|---|
| AT (1) | AT272360B (enrdf_load_stackoverflow) |
| BE (1) | BE684673A (enrdf_load_stackoverflow) |
| CH (1) | CH468356A (enrdf_load_stackoverflow) |
| DE (1) | DE1568845A1 (enrdf_load_stackoverflow) |
| DK (1) | DK118013B (enrdf_load_stackoverflow) |
| GB (1) | GB1124868A (enrdf_load_stackoverflow) |
| NL (1) | NL6704780A (enrdf_load_stackoverflow) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3666807A (en) * | 1968-02-12 | 1972-05-30 | Sumitomo Chemical Co | Process for producing urea |
| JPS5189B1 (enrdf_load_stackoverflow) * | 1970-03-12 | 1976-01-05 | ||
| US3984469A (en) * | 1969-10-16 | 1976-10-05 | Snam Progetti S.P.A. | Process for the production of urea |
| WO1983000861A1 (en) * | 1981-09-01 | 1983-03-17 | Van Nassau, Petrus, Johannes, Marie | Process for the preparation of urea |
| WO1983000862A1 (en) * | 1981-09-01 | 1983-03-17 | Van Nassau, Petrus, Johannes, Marie | Process for the preparation of urea |
| GB2167066A (en) * | 1984-11-02 | 1986-05-21 | Toyo Engineering Corp | Process for producing urea |
| EP0569629A1 (en) * | 1992-05-11 | 1993-11-18 | Union Oil Company of California, dba UNOCAL | Method for producing acidic urea solutions |
| US10280097B2 (en) | 2011-04-25 | 2019-05-07 | Oasys Water LLC | Osmotic separation systems and methods |
| US10315163B2 (en) | 2009-10-30 | 2019-06-11 | Oasys Water LLC | Osmotic separation systems and methods |
| US10315936B2 (en) | 2009-10-28 | 2019-06-11 | Oasys Water LLC | Forward osmosis separation processes |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL156686B (nl) * | 1968-03-16 | 1978-05-16 | Stamicarbon | Werkwijze voor de bereiding van ureum in combinatie met de synthese van ammoniak. |
| IT1068268B (it) * | 1976-09-09 | 1985-03-21 | Snam Progetti | Procedimento per la produzione di urea e purificazione delle acque |
-
1966
- 1966-04-05 CH CH499766A patent/CH468356A/de unknown
- 1966-06-06 DE DE19661568845 patent/DE1568845A1/de active Pending
- 1966-07-27 BE BE684673D patent/BE684673A/xx unknown
-
1967
- 1967-03-28 DK DK1567A patent/DK118013B/da unknown
- 1967-04-03 AT AT317567A patent/AT272360B/de active
- 1967-04-04 NL NL6704780A patent/NL6704780A/xx unknown
- 1967-04-05 GB GB1569767A patent/GB1124868A/en not_active Expired
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3666807A (en) * | 1968-02-12 | 1972-05-30 | Sumitomo Chemical Co | Process for producing urea |
| US3984469A (en) * | 1969-10-16 | 1976-10-05 | Snam Progetti S.P.A. | Process for the production of urea |
| JPS5189B1 (enrdf_load_stackoverflow) * | 1970-03-12 | 1976-01-05 | ||
| WO1983000861A1 (en) * | 1981-09-01 | 1983-03-17 | Van Nassau, Petrus, Johannes, Marie | Process for the preparation of urea |
| WO1983000862A1 (en) * | 1981-09-01 | 1983-03-17 | Van Nassau, Petrus, Johannes, Marie | Process for the preparation of urea |
| US4540813A (en) * | 1981-09-01 | 1985-09-10 | Unie Van Kunstmestfabrieken B.V. | Process for the preparation of urea |
| GB2167066A (en) * | 1984-11-02 | 1986-05-21 | Toyo Engineering Corp | Process for producing urea |
| EP0569629A1 (en) * | 1992-05-11 | 1993-11-18 | Union Oil Company of California, dba UNOCAL | Method for producing acidic urea solutions |
| US10315936B2 (en) | 2009-10-28 | 2019-06-11 | Oasys Water LLC | Forward osmosis separation processes |
| US10315163B2 (en) | 2009-10-30 | 2019-06-11 | Oasys Water LLC | Osmotic separation systems and methods |
| US10280097B2 (en) | 2011-04-25 | 2019-05-07 | Oasys Water LLC | Osmotic separation systems and methods |
Also Published As
| Publication number | Publication date |
|---|---|
| DE1568845A1 (de) | 1972-04-13 |
| NL6704780A (enrdf_load_stackoverflow) | 1967-10-06 |
| CH468356A (de) | 1969-02-15 |
| DK118013B (da) | 1970-06-29 |
| BE684673A (enrdf_load_stackoverflow) | 1967-01-03 |
| AT272360B (de) | 1969-07-10 |
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