GB1181039A - Process for the Production of Urea - Google Patents
Process for the Production of UreaInfo
- Publication number
- GB1181039A GB1181039A GB27796/68A GB2779668A GB1181039A GB 1181039 A GB1181039 A GB 1181039A GB 27796/68 A GB27796/68 A GB 27796/68A GB 2779668 A GB2779668 A GB 2779668A GB 1181039 A GB1181039 A GB 1181039A
- Authority
- GB
- United Kingdom
- Prior art keywords
- urea
- reactor
- carbon dioxide
- ammonia
- splitter
- 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
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
-
- 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
- Y02P20/141—Feedstock
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Electromagnets (AREA)
Abstract
1,181,039. Urea synthesis. SNAM PROGETTI S.p.A. 11 June, 1968 [14 Dec., 1967], No. 27796/68. Heading C2C. A process for the production of urea comprises feeding carbon dioxide and ammonia to a reactor, reacting them to produce an effluent aqueous solution of urea contaminated with ammonium carbamate, splitting the latter in a splitter so as to convert it into carbon dioxide and ammonia and produce an aqueous solution of urea substantially free from ammonium carbamate, and recycling to the reactor in the gaseous phase and at substantially the same temperature at which splitting was effected the carbon dioxide and ammonia produced in the splitter, the recycling being effected by entraining the gases by means of an ejector in the ammonia and/or carbon dioxide which is fed to the reactor. The temperature and pressure in the reactor may be 160-220‹ C. and 130- 220 kg. cm.<SP>-2</SP> respectively and, in the splitter, 160-220‹ C. and 70-200 kg.cm.<SP>-2</SP> respectively.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2385467 | 1967-12-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1181039A true GB1181039A (en) | 1970-02-11 |
Family
ID=11210433
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB27796/68A Expired GB1181039A (en) | 1967-12-14 | 1968-06-11 | Process for the Production of Urea |
Country Status (14)
| Country | Link |
|---|---|
| AT (1) | AT284860B (en) |
| BE (1) | BE717020A (en) |
| CH (1) | CH490344A (en) |
| CS (1) | CS177010B2 (en) |
| DE (1) | DE1768600C3 (en) |
| DK (1) | DK122074B (en) |
| ES (1) | ES359052A1 (en) |
| FR (1) | FR1572656A (en) |
| GB (1) | GB1181039A (en) |
| IE (1) | IE32163B1 (en) |
| LU (1) | LU56302A1 (en) |
| NL (1) | NL144927C (en) |
| NO (1) | NO127498B (en) |
| YU (1) | YU34282B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2143583A1 (en) * | 1970-09-03 | 1972-04-20 | Snam Progetti S.P.A., Mailand (Italien) | Integrated process for the production of urea |
| US4086271A (en) * | 1971-10-19 | 1978-04-25 | Ivo Mavrovic | Urea synthesis with improved heat recovery and conversion |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8101174A (en) * | 1981-03-11 | 1982-10-01 | Unie Van Kunstmestfab Bv | METHOD FOR THE PREPARATION OF UREA. |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR846559A (en) * | 1938-01-06 | 1939-09-20 | Alais | Process for the dehydration of mixtures of carbonic acid and ammonia |
| NL108928C (en) * | 1958-05-20 | |||
| US3053891A (en) * | 1959-05-05 | 1962-09-11 | Chemical Construction Corp | Process for production of urea |
| US3147304A (en) * | 1960-06-21 | 1964-09-01 | Chemical Construction Corp | Method for heat recovery in urea synthesis process |
| NL126425C (en) * | 1961-07-21 | |||
| FR1450899A (en) * | 1964-10-16 | 1966-06-24 | Toyo Koatsu Ind Inc | Process for treating an effluent from urea synthesis |
-
1968
- 1968-05-14 YU YU1130/68A patent/YU34282B/en unknown
- 1968-05-14 NL NL6806787.A patent/NL144927C/en not_active IP Right Cessation
- 1968-05-22 NO NO02007/68A patent/NO127498B/no unknown
- 1968-05-28 DK DK248668AA patent/DK122074B/en not_active IP Right Cessation
- 1968-05-30 AT AT521168A patent/AT284860B/en not_active IP Right Cessation
- 1968-06-01 DE DE1768600A patent/DE1768600C3/en not_active Expired
- 1968-06-11 GB GB27796/68A patent/GB1181039A/en not_active Expired
- 1968-06-18 FR FR1572656D patent/FR1572656A/fr not_active Expired
- 1968-06-20 LU LU56302D patent/LU56302A1/xx unknown
- 1968-06-21 BE BE717020D patent/BE717020A/xx not_active IP Right Cessation
- 1968-06-22 CH CH938168A patent/CH490344A/en not_active IP Right Cessation
- 1968-06-27 IE IE768/68A patent/IE32163B1/en unknown
- 1968-09-30 ES ES359052A patent/ES359052A1/en not_active Expired
- 1968-12-11 CS CS8429A patent/CS177010B2/cs unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2143583A1 (en) * | 1970-09-03 | 1972-04-20 | Snam Progetti S.P.A., Mailand (Italien) | Integrated process for the production of urea |
| US4086271A (en) * | 1971-10-19 | 1978-04-25 | Ivo Mavrovic | Urea synthesis with improved heat recovery and conversion |
Also Published As
| Publication number | Publication date |
|---|---|
| NL144927C (en) | 1980-10-15 |
| DK122074B (en) | 1972-01-17 |
| LU56302A1 (en) | 1968-09-30 |
| IE32163L (en) | 1969-06-14 |
| AT284860B (en) | 1970-10-12 |
| NL6806787A (en) | 1969-06-17 |
| FR1572656A (en) | 1969-06-27 |
| IE32163B1 (en) | 1973-05-02 |
| YU34282B (en) | 1979-04-30 |
| CS177010B2 (en) | 1977-07-29 |
| BE717020A (en) | 1968-12-23 |
| NL144927B (en) | 1975-02-17 |
| ES359052A1 (en) | 1970-05-16 |
| NO127498B (en) | 1973-07-02 |
| DE1768600A1 (en) | 1972-05-04 |
| CH490344A (en) | 1970-05-15 |
| DE1768600B2 (en) | 1974-08-08 |
| YU113068A (en) | 1978-10-31 |
| DE1768600C3 (en) | 1984-02-02 |
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