GB1295742A - - Google Patents
Info
- Publication number
- GB1295742A GB1295742A GB1295742DA GB1295742A GB 1295742 A GB1295742 A GB 1295742A GB 1295742D A GB1295742D A GB 1295742DA GB 1295742 A GB1295742 A GB 1295742A
- Authority
- GB
- United Kingdom
- Prior art keywords
- urea
- carbon dioxide
- ammonia
- zone
- unreacted materials
- 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
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract 10
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 8
- 229910002092 carbon dioxide Inorganic materials 0.000 abstract 5
- 239000001569 carbon dioxide Substances 0.000 abstract 5
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 4
- 229910021529 ammonia Inorganic materials 0.000 abstract 4
- 239000004202 carbamide Substances 0.000 abstract 4
- 238000010438 heat treatment Methods 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 3
- 238000003786 synthesis reaction Methods 0.000 abstract 3
- 239000008246 gaseous mixture Substances 0.000 abstract 2
- 238000004821 distillation Methods 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
- 229910001868 water Inorganic materials 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
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 |
|---|---|---|---|
| JP44068311A JPS4919259B1 (enExample) | 1969-08-30 | 1969-08-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1295742A true GB1295742A (enExample) | 1972-11-08 |
Family
ID=13370122
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1295742D Expired GB1295742A (enExample) | 1969-08-30 | 1970-08-19 |
Country Status (9)
| Country | Link |
|---|---|
| US (1) | US3725210A (enExample) |
| JP (1) | JPS4919259B1 (enExample) |
| CA (1) | CA939293A (enExample) |
| DE (1) | DE2042574C3 (enExample) |
| ES (1) | ES382368A1 (enExample) |
| FR (1) | FR2056850A5 (enExample) |
| GB (1) | GB1295742A (enExample) |
| NL (1) | NL148595B (enExample) |
| SU (1) | SU467518A3 (enExample) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4036878A (en) * | 1972-06-12 | 1977-07-19 | Unie Van Kunstmestfabrieken, B.V. | Process for preparing urea |
| NL7417042A (nl) * | 1974-01-16 | 1975-07-18 | Fisons Ltd | Werkwijze voor de bereiding van ammoniumfos- faten. |
| US4061633A (en) * | 1974-02-25 | 1977-12-06 | Lazar Isaevich Blyakhman | Method of recovering primary and secondary amines |
| JPS555977B2 (enExample) * | 1974-05-14 | 1980-02-12 | ||
| IT1014987B (it) * | 1974-06-12 | 1977-04-30 | Snam Progetti | Procedimento integrato urea am moniaca |
| JPS5268129A (en) * | 1975-12-05 | 1977-06-06 | Mitsui Toatsu Chem Inc | Recovery of unreacted material and heat on urea synthesis |
| US4110374A (en) * | 1976-03-02 | 1978-08-29 | Mitsui Toatsu Chemicals Inc. | Process for separating and recovering unreacted materials in urea synthesis |
| JPS52105125A (en) * | 1976-03-02 | 1977-09-03 | Mitsui Toatsu Chem Inc | Separation and recovery of unreacted material on urea synthesis |
| US4341640A (en) * | 1976-09-27 | 1982-07-27 | Standard Oil Company | Urea hydrolysis |
| NL7903623A (nl) * | 1979-05-09 | 1980-11-11 | Stamicarbon | Werkwijze voor het zuiveren van ureumhoudend afvalwater en werkwijze voor het bereiden van melamine. |
| JPS56128749A (en) * | 1980-03-13 | 1981-10-08 | Mitsui Toatsu Chem Inc | Stripping of unreacted material in urea preparation process |
| JP2004141263A (ja) * | 2002-10-22 | 2004-05-20 | Aruze Corp | 遊技機 |
| EP3366670A1 (en) * | 2017-02-27 | 2018-08-29 | Casale Sa | A process and system to capture ammonia from a purge gas of a urea plant |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3317601A (en) * | 1962-08-08 | 1967-05-02 | Toyo Koatsu Ind Inc | Synthesizing urea |
| FR1534669A (fr) * | 1964-02-17 | 1968-08-02 | Allied Chem | Procédé et dispositif de décomposition de carbamate d'ammonium notamment résultant de la synthèse de l'urée ainsi que les produits obtenus par le présent procédé ou procédé similaire |
| US3471558A (en) * | 1964-02-27 | 1969-10-07 | Allied Chem | Method for the decomposition and evaporation of urea synthesis effluent |
| FR1434858A (fr) * | 1964-05-29 | 1966-04-08 | Stamicarbon | Procédé pour la préparation d'urée |
| FR1458030A (fr) * | 1964-12-16 | 1966-01-24 | Stamicarbon | Procédé et dispositif pour la préparation d'urée |
| US3301897A (en) * | 1965-11-08 | 1967-01-31 | Chemical Construction Corp | Process for urea synthesis |
-
1969
- 1969-08-30 JP JP44068311A patent/JPS4919259B1/ja active Pending
-
1970
- 1970-07-31 ES ES382368A patent/ES382368A1/es not_active Expired
- 1970-08-11 FR FR7029551A patent/FR2056850A5/fr not_active Expired
- 1970-08-18 US US00064805A patent/US3725210A/en not_active Expired - Lifetime
- 1970-08-19 GB GB1295742D patent/GB1295742A/en not_active Expired
- 1970-08-24 SU SU1473676A patent/SU467518A3/ru active
- 1970-08-27 DE DE2042574A patent/DE2042574C3/de not_active Expired
- 1970-08-28 NL NL707012798A patent/NL148595B/xx not_active IP Right Cessation
- 1970-08-28 CA CA091,858A patent/CA939293A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| NL148595B (nl) | 1976-02-16 |
| FR2056850A5 (enExample) | 1971-05-14 |
| SU467518A3 (ru) | 1975-04-15 |
| US3725210A (en) | 1973-04-03 |
| DE2042574B2 (de) | 1977-12-08 |
| CA939293A (en) | 1974-01-01 |
| NL7012798A (enExample) | 1971-03-02 |
| JPS4919259B1 (enExample) | 1974-05-16 |
| ES382368A1 (es) | 1972-11-16 |
| DE2042574A1 (de) | 1971-03-11 |
| DE2042574C3 (de) | 1978-08-10 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PE20 | Patent expired after termination of 20 years |