ES309397A1 - Method for decomposing ammonium carbamate and separating ammonia and carbon dioxide. (Machine-translation by Google Translate, not legally binding) - Google Patents
Method for decomposing ammonium carbamate and separating ammonia and carbon dioxide. (Machine-translation by Google Translate, not legally binding)Info
- Publication number
- ES309397A1 ES309397A1 ES0309397A ES309397A ES309397A1 ES 309397 A1 ES309397 A1 ES 309397A1 ES 0309397 A ES0309397 A ES 0309397A ES 309397 A ES309397 A ES 309397A ES 309397 A1 ES309397 A1 ES 309397A1
- Authority
- ES
- Spain
- Prior art keywords
- zone
- carbon dioxide
- liquid
- ammonia
- hot
- 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
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title abstract 14
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 title abstract 12
- 229910021529 ammonia Inorganic materials 0.000 title abstract 7
- 229910002092 carbon dioxide Inorganic materials 0.000 title abstract 6
- 239000001569 carbon dioxide Substances 0.000 title abstract 6
- BVCZEBOGSOYJJT-UHFFFAOYSA-N ammonium carbamate Chemical compound [NH4+].NC([O-])=O BVCZEBOGSOYJJT-UHFFFAOYSA-N 0.000 title abstract 2
- KXDHJXZQYSOELW-UHFFFAOYSA-N carbonic acid monoamide Natural products NC(O)=O KXDHJXZQYSOELW-UHFFFAOYSA-N 0.000 title abstract 2
- 238000000034 method Methods 0.000 title abstract 2
- 239000007788 liquid Substances 0.000 abstract 8
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 abstract 3
- 238000000354 decomposition reaction Methods 0.000 abstract 3
- 238000000926 separation method Methods 0.000 abstract 3
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 2
- 239000004202 carbamide Substances 0.000 abstract 2
- 239000000203 mixture Substances 0.000 abstract 2
- 238000002360 preparation method Methods 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J19/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J19/24—Stationary reactors without moving elements inside
- B01J19/2415—Tubular reactors
- B01J19/2425—Tubular reactors in parallel
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2219/00—Chemical, physical or physico-chemical processes in general; Their relevant apparatus
- B01J2219/00049—Controlling or regulating processes
- B01J2219/00051—Controlling the temperature
- B01J2219/00074—Controlling the temperature by indirect heating or cooling employing heat exchange fluids
- B01J2219/00087—Controlling the temperature by indirect heating or cooling employing heat exchange fluids with heat exchange elements outside the reactor
- B01J2219/00094—Jackets
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
The method for decomposing ammonium carbamate and separating vaporous ammonia and carbon dioxide from an essentially liquid mixture including urea, carbamate, ammonia and water, characterized by passing said liquid mixture through a first hot, primary decomposition zone by means of wherein the carbamate, of said liquid, decomposes to form ammonia and carbon dioxide, gaseous, said liquid and vapors formed by passing, as a mixed phase, by said first hot zone, concurrently and into an intermediate zone of vapor separation , passing the liquid of said first hot zone through a second decomposition zone, hot, to decompose an additional amount of carbamate and form ammonia and carbon dioxide vapors, the flow of said liquid, through said second zone, being like a film relatively thin from approximately 2.5 millimeters to 6 millimeters thick, having provided adjacent space, for the Preparation of vaporous, formed ammonia and carbon dioxide, and flow of said vapors separated to said intermediate separation zone, passing countercurrent to the flow of said liquid through said second hot zone, said decomposition zone being at temperatures of about 104º C to 160º C, removing ammonia and vaporous carbon dioxide from said intermediate zone of separation and removing liquid urea from said second hot zone. (Machine-translation by Google Translate, not legally binding)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US34545764A | 1964-02-17 | 1964-02-17 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES309397A1 true ES309397A1 (en) | 1965-12-16 |
Family
ID=23355132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES0309397A Expired ES309397A1 (en) | 1964-02-17 | 1965-02-16 | Method for decomposing ammonium carbamate and separating ammonia and carbon dioxide. (Machine-translation by Google Translate, not legally binding) |
Country Status (5)
| Country | Link |
|---|---|
| CH (1) | CH438264A (en) |
| DE (1) | DE1518466C3 (en) |
| ES (1) | ES309397A1 (en) |
| GB (1) | GB1103041A (en) |
| IL (1) | IL23001A (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1174366B (en) * | 1978-07-24 | 1987-07-01 | Ortu Francesco | CARBAMATE DECOMPOSITOR FOR INDUSTRIAL PRODUCTION OF UREA |
| US6761868B2 (en) | 2001-05-16 | 2004-07-13 | The Chemithon Corporation | Process for quantitatively converting urea to ammonia on demand |
| US6887449B2 (en) | 2002-11-21 | 2005-05-03 | The Chemithon Corporation | Method of quantitatively producing ammonia from urea |
-
1965
- 1965-02-16 IL IL23001A patent/IL23001A/en unknown
- 1965-02-16 DE DE1518466A patent/DE1518466C3/en not_active Expired
- 1965-02-16 ES ES0309397A patent/ES309397A1/en not_active Expired
- 1965-02-17 CH CH215365A patent/CH438264A/en unknown
- 1965-02-17 GB GB6803/65A patent/GB1103041A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| IL23001A (en) | 1968-09-26 |
| DE1518466A1 (en) | 1969-08-07 |
| DE1518466B2 (en) | 1974-08-15 |
| GB1103041A (en) | 1968-02-14 |
| DE1518466C3 (en) | 1975-04-03 |
| CH438264A (en) | 1967-06-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| FR1461965A (en) | Process for separating a component from a gas mixture | |
| GB1106024A (en) | Urea synthesis | |
| GB1224816A (en) | Improvements in or relating to absorption agents | |
| ES461831A1 (en) | Separation of gaseous mixtures | |
| ES309397A1 (en) | Method for decomposing ammonium carbamate and separating ammonia and carbon dioxide. (Machine-translation by Google Translate, not legally binding) | |
| ES386653A1 (en) | Integrated process for the preparation of urea and melamine | |
| GB1274504A (en) | Improvements in or relating to the synthesis of ammonia | |
| ES328196A1 (en) | A device for preparing urea from ammonia and carbon dioxide. (Machine-translation by Google Translate, not legally binding) | |
| GB945783A (en) | Process for the purification of urea | |
| GB1129637A (en) | Process for separating chlorine from phosgene | |
| ES427854A1 (en) | Process for the separation and recovery of ammonia and acid gases | |
| ES386315A1 (en) | Process for separating off melamine from a hot synthesis gas mixture which contains melamine vapor | |
| GB1099371A (en) | Process for the production of urea by synthesis from ammonia and carbon dioxide | |
| ES309851A1 (en) | Urea synthesis method. (Machine-translation by Google Translate, not legally binding) | |
| GB963478A (en) | recovery of acrylonitrile | |
| ES427679A1 (en) | Ammonia recovery by basorption and scrubbing | |
| GB1140339A (en) | Treatment of gases | |
| ES368405A1 (en) | Urea plant ammonium recovery system | |
| ES450419A1 (en) | Procedure for the condensation of carbamate in urea synthesis installations. (Machine-translation by Google Translate, not legally binding) | |
| GB987500A (en) | Process for the production of urea | |
| GB1046271A (en) | Urea manufacturing process | |
| ES298518A1 (en) | A continuous procedure to separate urea from a contaminated urea solution with biuret (Machine-translation by Google Translate, not legally binding) | |
| ES304635A1 (en) | Procedure of recovery of a source of radicals sh. (Machine-translation by Google Translate, not legally binding) | |
| AU445998B2 (en) | Method of and a discontinuously operating sublimation condenser for the recovery by desublimation of a reaction product from gas vapour mixture | |
| GB1085688A (en) | Process for removing carbon dioxide from gases containing ammonia |