GB1188051A - Process for Producing Urea - Google Patents
Process for Producing UreaInfo
- Publication number
- GB1188051A GB1188051A GB20720/68A GB2072068A GB1188051A GB 1188051 A GB1188051 A GB 1188051A GB 20720/68 A GB20720/68 A GB 20720/68A GB 2072068 A GB2072068 A GB 2072068A GB 1188051 A GB1188051 A GB 1188051A
- Authority
- GB
- United Kingdom
- Prior art keywords
- urea
- aqueous solution
- carbon dioxide
- ammonia
- products
- 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
Abstract
1,188,051. Urea. SNAM PROGETTI S.p.A. 1 May, 1968 [6 Feb., 1968], No. 20720/68. Heading C2C. Process for the production of urea which comprises feeding ammonia and carbon dioxide into a reactor, reacting the ammonia and carbon dioxide so as to produce an effluent aqueous solution of urea contaminated with ammonium carbamate, splitting the latter into NH 3 and CO 2 , stripping in a stripper the products of the splitting from the said aqueous solution in the presence of a stripping agent selected from ammonia and carbon dioxide so as to produce an aqueous solution of urea substantially free from ammonium carbamate, condensing the products which have been stripped and recycling the condensed products to the reactor by entraining the condensed stripped products in the ammonia or carbon dioxide which is fed to the reactor. The stripping is usually carried out in a single stage at a high pressure, preferably from 80 to 200 kg/cm.<SP>2</SP>, and usually at a temperature of from 160‹ to 250‹ C. The stripper may be positioned so that the effluent aqueous solution falls into it from the reactor under the force of gravity.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT1240968 | 1968-02-06 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1188051A true GB1188051A (en) | 1970-04-15 |
Family
ID=11139817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB20720/68A Expired GB1188051A (en) | 1968-02-06 | 1968-05-01 | Process for Producing Urea |
Country Status (14)
| Country | Link |
|---|---|
| AT (1) | AT284138B (en) |
| BE (1) | BE714519A (en) |
| CA (1) | CA923142A (en) |
| CH (1) | CH486428A (en) |
| CS (1) | CS159227B2 (en) |
| DK (1) | DK119604B (en) |
| ES (1) | ES358903A1 (en) |
| FR (1) | FR1560985A (en) |
| GB (1) | GB1188051A (en) |
| IE (1) | IE31898B1 (en) |
| LU (1) | LU55998A1 (en) |
| NL (1) | NL162370C (en) |
| NO (1) | NO129250B (en) |
| YU (1) | YU33003B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3954861A (en) * | 1968-02-05 | 1976-05-04 | Snamprogetti S.P.A | Process for producing urea |
| EP2123633A1 (en) | 2008-05-19 | 2009-11-25 | DSM IP Assets B.V. | Process for the production of urea from ammonia and carbon dioxide |
| EP2286909A1 (en) * | 2009-08-17 | 2011-02-23 | Stamicarbon B.V. | An apparatus for the decomposition of non-converted ammonium carbamate in urea solutions in a urea synthesis process |
| WO2016099269A1 (en) | 2014-12-18 | 2016-06-23 | Stamicarbon B.V. | Process for urea production |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL7307036A (en) * | 1973-05-21 | 1974-11-25 | ||
| NL174548C (en) * | 1977-05-05 | 1988-05-16 | Montedison Spa | PROCESS FOR PREPARING UREA BY REACTION OF AMMONIA AND CARBON DIOXIDE. |
| NL8101174A (en) * | 1981-03-11 | 1982-10-01 | Unie Van Kunstmestfab Bv | METHOD FOR THE PREPARATION OF UREA. |
-
1968
- 1968-04-18 AT AT380168A patent/AT284138B/en not_active IP Right Cessation
- 1968-04-19 DK DK178068AA patent/DK119604B/en not_active IP Right Cessation
- 1968-04-19 YU YU945/68A patent/YU33003B/en unknown
- 1968-04-25 CS CS308068A patent/CS159227B2/cs unknown
- 1968-04-29 LU LU55998D patent/LU55998A1/xx unknown
- 1968-04-29 FR FR1560985D patent/FR1560985A/fr not_active Expired
- 1968-04-30 CH CH646968A patent/CH486428A/en not_active IP Right Cessation
- 1968-04-30 BE BE714519D patent/BE714519A/xx not_active IP Right Cessation
- 1968-05-01 NL NL6806170.A patent/NL162370C/en not_active IP Right Cessation
- 1968-05-01 GB GB20720/68A patent/GB1188051A/en not_active Expired
- 1968-05-03 NO NO01723/68A patent/NO129250B/no unknown
- 1968-05-07 IE IE533/68A patent/IE31898B1/en unknown
- 1968-09-27 ES ES358903A patent/ES358903A1/en not_active Expired
-
1969
- 1969-01-09 CA CA039707A patent/CA923142A/en not_active Expired
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3954861A (en) * | 1968-02-05 | 1976-05-04 | Snamprogetti S.P.A | Process for producing urea |
| CN102119148B (en) * | 2008-05-19 | 2015-07-08 | 斯塔米卡邦有限公司 | Process for the production of urea from ammonia and carbon dioxide |
| EP2123633A1 (en) | 2008-05-19 | 2009-11-25 | DSM IP Assets B.V. | Process for the production of urea from ammonia and carbon dioxide |
| WO2009141344A1 (en) * | 2008-05-19 | 2009-11-26 | Dsm Ip Assets Bv | Process for the production of urea from ammonia and carbon dioxide |
| CN105037212B (en) * | 2008-05-19 | 2017-06-09 | 斯塔米卡邦有限公司 | By ammonia and the method for carbon dioxide production urea |
| CN105037212A (en) * | 2008-05-19 | 2015-11-11 | 斯塔米卡邦有限公司 | Process for the production of urea from ammonia and carbon dioxide |
| CN102119148A (en) * | 2008-05-19 | 2011-07-06 | 斯塔米卡邦有限公司 | Process for the production of urea from ammonia and carbon dioxide |
| US8829240B2 (en) | 2008-05-19 | 2014-09-09 | Stamicarbon B.V. | Process for the production of urea from ammonia and carbon dioxide |
| EA020709B1 (en) * | 2008-05-19 | 2015-01-30 | Стамикарбон Б.В. | Process for the production of urea from ammonia and carbon dioxide |
| EP2286909A1 (en) * | 2009-08-17 | 2011-02-23 | Stamicarbon B.V. | An apparatus for the decomposition of non-converted ammonium carbamate in urea solutions in a urea synthesis process |
| US9061972B2 (en) | 2009-08-17 | 2015-06-23 | Stamicarbon, B.V. | Apparatus for the decomposition of non-converted ammonium carbamate in urea solutions in a urea synthesis process |
| WO2011020732A3 (en) * | 2009-08-17 | 2011-05-12 | Dsm Ip Assets B.V. | An apparatus for the decomposition of non-converted ammonium carbamate in urea solutions in a urea synthesis process |
| EA022597B1 (en) * | 2009-08-17 | 2016-01-29 | Стамикарбон Б.В. | An apparatus for the decomposition of ammonium carbamate and method for producing an apparatus for the decomposition of ammonium carbamate |
| WO2011020732A2 (en) | 2009-08-17 | 2011-02-24 | Dsm Ip Assets B.V. | An apparatus for the decomposition of non-converted ammonium carbamate in urea solutions in a urea synthesis process |
| WO2016099269A1 (en) | 2014-12-18 | 2016-06-23 | Stamicarbon B.V. | Process for urea production |
Also Published As
| Publication number | Publication date |
|---|---|
| CS159227B2 (en) | 1974-12-27 |
| LU55998A1 (en) | 1968-07-12 |
| DE1768248B2 (en) | 1973-02-01 |
| NL162370C (en) | 1980-05-16 |
| NL162370B (en) | 1979-12-17 |
| NO129250B (en) | 1974-03-18 |
| IE31898L (en) | 1969-08-06 |
| NL6806170A (en) | 1969-08-08 |
| CH486428A (en) | 1970-02-28 |
| BE714519A (en) | 1968-09-30 |
| DE1768248A1 (en) | 1972-03-30 |
| AT284138B (en) | 1970-09-10 |
| FR1560985A (en) | 1969-03-21 |
| DK119604B (en) | 1971-02-01 |
| YU94568A (en) | 1975-08-31 |
| ES358903A1 (en) | 1970-05-16 |
| YU33003B (en) | 1976-03-31 |
| IE31898B1 (en) | 1973-02-07 |
| CA923142A (en) | 1973-03-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |