GB1359715A - Integrated process for the production of urea - Google Patents
Integrated process for the production of ureaInfo
- Publication number
- GB1359715A GB1359715A GB3453971A GB3453971A GB1359715A GB 1359715 A GB1359715 A GB 1359715A GB 3453971 A GB3453971 A GB 3453971A GB 3453971 A GB3453971 A GB 3453971A GB 1359715 A GB1359715 A GB 1359715A
- Authority
- GB
- United Kingdom
- Prior art keywords
- urea
- carbamate
- reactor
- production
- decomposed
- 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
- Y02P20/10—Process efficiency
Abstract
1359715 Urea production SNAM PROGETTI SpA 22 July 1971 [3 Sept 1970] 34539/71 Heading C2C A process for the production of urea comprises the steps of reacting CO 2 in a first or carbamate reactor with concentrated aqueous ammonia to form an aqueous solution of ammonium carbamate which is fed to a second or urea reactor wherein the ammonium carbamate so formed is dehydrated to form urea and from which there is obtained an aqueous solution containing urea and unreacted carbamate, and gas consisting of inert gases which are not reactants in the process, and in which process unreacted carbamate present in the urea-containing solution from the second reactor is decomposed and at least part of the decomposition products so formed are recycled in the gaseous phase to said second reactor to condense therein so that the thermal balance of the heat of formation of the carbamate which is decomposed and the latent heats of condensation and dissolution of the carbamate decomposition products is sufficient to supply the heat needed to maintain the contents of the second reactor at the dehydration temperature of the carbamate, and recovering urea from said solution.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2929570 | 1970-09-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1359715A true GB1359715A (en) | 1974-07-10 |
Family
ID=11226704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3453971A Expired GB1359715A (en) | 1970-09-03 | 1971-07-22 | Integrated process for the production of urea |
Country Status (25)
| Country | Link |
|---|---|
| JP (1) | JPS5320013B1 (en) |
| AT (1) | AT332420B (en) |
| AU (1) | AU473454B2 (en) |
| BE (1) | BE771979A (en) |
| CA (1) | CA997369A (en) |
| CH (1) | CH551953A (en) |
| CS (1) | CS178090B2 (en) |
| DE (1) | DE2143583C3 (en) |
| DK (1) | DK138849B (en) |
| ES (1) | ES395094A1 (en) |
| FR (1) | FR2109719A5 (en) |
| GB (1) | GB1359715A (en) |
| HU (1) | HU171341B (en) |
| IE (1) | IE35705B1 (en) |
| LU (1) | LU63821A1 (en) |
| MY (1) | MY7700248A (en) |
| NL (1) | NL178250C (en) |
| NO (1) | NO139959C (en) |
| PH (1) | PH12569A (en) |
| PL (1) | PL94001B1 (en) |
| RO (1) | RO69642A (en) |
| SE (1) | SE409203B (en) |
| TR (1) | TR17294A (en) |
| YU (1) | YU35112B (en) |
| ZA (1) | ZA715560B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2617708A1 (en) * | 2012-01-17 | 2013-07-24 | Alstom Technology Ltd | A method of forming urea by integration of an ammonia production process in a urea production process and a system therefor |
| US20150368191A1 (en) * | 2013-01-16 | 2015-12-24 | Alstom Technology Ltd | Method of forming urea by integration of an ammonia production process in a urea production process and a system therefor |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT216006B (en) * | 1960-12-15 | 1961-07-10 | Stamicarbon | Process for the production of urea |
| AT235305B (en) * | 1961-03-29 | 1964-08-25 | Montedison Spa | Process for the production of urea |
| US3281464A (en) * | 1961-09-08 | 1966-10-25 | Lummus Co | Urea purification with recovery of ammonia and carbon dioxide |
| DE1468245A1 (en) * | 1962-02-28 | 1968-12-19 | Montedison Spa | Process for the return of unreacted carbamate in the synthesis of urea from ammonia and carbon dioxide |
| US3303215A (en) * | 1962-03-09 | 1967-02-07 | Toyo Koatsu Ind Inc | Synthesis of urea |
| AT244984B (en) * | 1962-03-22 | 1966-02-10 | Snam Spa | Process for the production of urea from carbon dioxide and ammonia |
| NL137580B (en) * | 1962-03-22 | 1900-01-01 | ||
| US3349126A (en) * | 1962-09-10 | 1967-10-24 | Pullman Inc | Integrated ammonia and urea process |
| NL127236C (en) * | 1964-05-29 | |||
| IL27267A (en) * | 1966-01-21 | 1970-10-30 | Montedison Spa | Process for the synthesis of urea from ammonia and carbon dioxide |
| NL148878B (en) * | 1966-04-22 | 1976-03-15 | Stamicarbon | PROCEDURE FOR THE CONTINUOUS PREPARATION OF UREA. |
| YU34282B (en) * | 1967-12-14 | 1979-04-30 | Snam Progetti | Process for the decomposition and recyclation of unreacted ammonium carbamate into the reactor for the synthesis of carbamide |
| NL159960C (en) * | 1967-12-21 | 1979-09-17 | Stamicarbon | PROCEDURE FOR THE PREPARATION OF UREA IN COMBINATION WITH THE SYNTHESIS OF AMMONIA. |
| NL153857B (en) * | 1967-12-21 | 1977-07-15 | Stamicarbon | PROCEDURE FOR THE PREPARATION OF UREA IN COMBINATION WITH THE SYNTHESIS OF AMMONIA. |
| JPS4832091B1 (en) * | 1968-02-12 | 1973-10-04 | ||
| BE758646A (en) * | 1969-11-15 | 1971-04-16 | Snam Progetti | PROCESS FOR TREATING SYNTHETIC GASES FROM AMMONIA |
-
1971
- 1971-07-20 PH PH12708A patent/PH12569A/en unknown
- 1971-07-22 GB GB3453971A patent/GB1359715A/en not_active Expired
- 1971-07-26 IE IE947/71A patent/IE35705B1/en unknown
- 1971-07-28 RO RO7167829A patent/RO69642A/en unknown
- 1971-07-28 CA CA119,361A patent/CA997369A/en not_active Expired
- 1971-07-29 YU YU1977/71A patent/YU35112B/en unknown
- 1971-08-06 AU AU32091/71A patent/AU473454B2/en not_active Expired
- 1971-08-19 ZA ZA715560A patent/ZA715560B/en unknown
- 1971-08-25 CS CS6089A patent/CS178090B2/cs unknown
- 1971-08-27 FR FR7131097A patent/FR2109719A5/fr not_active Expired
- 1971-08-30 ES ES395094A patent/ES395094A1/en not_active Expired
- 1971-08-31 DE DE2143583A patent/DE2143583C3/en not_active Expired
- 1971-08-31 BE BE771979A patent/BE771979A/en not_active IP Right Cessation
- 1971-09-01 PL PL1971150295A patent/PL94001B1/pl unknown
- 1971-09-02 LU LU63821D patent/LU63821A1/xx unknown
- 1971-09-02 TR TR17294A patent/TR17294A/en unknown
- 1971-09-02 DK DK432371AA patent/DK138849B/en not_active IP Right Cessation
- 1971-09-02 SE SE7111146A patent/SE409203B/en unknown
- 1971-09-02 HU HU71SA00002336A patent/HU171341B/en unknown
- 1971-09-03 NL NLAANVRAGE7112192,A patent/NL178250C/en not_active IP Right Cessation
- 1971-09-03 CH CH1293871A patent/CH551953A/en not_active IP Right Cessation
- 1971-09-03 NO NO3285/71A patent/NO139959C/en unknown
- 1971-09-03 AT AT771171A patent/AT332420B/en not_active IP Right Cessation
- 1971-09-03 JP JP7167538A patent/JPS5320013B1/ja active Pending
-
1977
- 1977-12-30 MY MY248/77A patent/MY7700248A/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2617708A1 (en) * | 2012-01-17 | 2013-07-24 | Alstom Technology Ltd | A method of forming urea by integration of an ammonia production process in a urea production process and a system therefor |
| WO2013108191A1 (en) | 2012-01-17 | 2013-07-25 | Alstom Technology Ltd | A method of forming urea by integration of an ammonia production process in a urea production process and a system therefor |
| RU2569306C1 (en) * | 2012-01-17 | 2015-11-20 | Альстом Текнолоджи Лтд | Method of producing urea by combining ammonia production process and urea production process and system therefor |
| AU2013210737B2 (en) * | 2012-01-17 | 2015-11-26 | General Electric Technology Gmbh | A method of forming urea by integration of an ammonia production process in a urea production process and a system therefor |
| US20150368191A1 (en) * | 2013-01-16 | 2015-12-24 | Alstom Technology Ltd | Method of forming urea by integration of an ammonia production process in a urea production process and a system therefor |
| US9428449B2 (en) | 2013-01-16 | 2016-08-30 | Alstom Technology Ltd | Method of forming urea by integration of an ammonia production process in a urea production process and a system therefor |
Also Published As
| Publication number | Publication date |
|---|---|
| NL178250C (en) | 1986-02-17 |
| CA997369A (en) | 1976-09-21 |
| NO139959C (en) | 1979-06-13 |
| IE35705B1 (en) | 1976-04-28 |
| ZA715560B (en) | 1972-04-26 |
| DK138849B (en) | 1978-11-06 |
| LU63821A1 (en) | 1972-01-11 |
| DE2143583B2 (en) | 1974-12-12 |
| HU171341B (en) | 1977-12-28 |
| DK138849C (en) | 1979-04-23 |
| NL7112192A (en) | 1972-03-07 |
| JPS5320013B1 (en) | 1978-06-24 |
| IE35705L (en) | 1972-03-03 |
| CH551953A (en) | 1974-07-31 |
| NO139959B (en) | 1979-03-05 |
| AU3209171A (en) | 1973-02-08 |
| PL94001B1 (en) | 1977-07-30 |
| DE2143583C3 (en) | 1981-10-15 |
| AT332420B (en) | 1976-09-27 |
| CS178090B2 (en) | 1977-08-31 |
| YU35112B (en) | 1980-09-25 |
| TR17294A (en) | 1975-03-24 |
| ATA771171A (en) | 1976-01-15 |
| YU197771A (en) | 1979-12-31 |
| FR2109719A5 (en) | 1972-05-26 |
| DE2143583A1 (en) | 1972-04-20 |
| RO69642A (en) | 1982-05-10 |
| MY7700248A (en) | 1977-12-31 |
| BE771979A (en) | 1971-12-31 |
| AU473454B2 (en) | 1976-06-24 |
| PH12569A (en) | 1979-06-20 |
| NL178250B (en) | 1985-09-16 |
| ES395094A1 (en) | 1974-01-16 |
| SE409203B (en) | 1979-08-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |