ES399402A1 - Un procedimiento mejorado para la preparacion de urea. - Google Patents
Un procedimiento mejorado para la preparacion de urea.Info
- Publication number
- ES399402A1 ES399402A1 ES399402A ES399402A ES399402A1 ES 399402 A1 ES399402 A1 ES 399402A1 ES 399402 A ES399402 A ES 399402A ES 399402 A ES399402 A ES 399402A ES 399402 A1 ES399402 A1 ES 399402A1
- Authority
- ES
- Spain
- Prior art keywords
- solution
- urea
- steps
- pressure
- ammonium carbamate
- 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)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL7101398A NL7101398A (es) | 1971-02-03 | 1971-02-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES399402A1 true ES399402A1 (es) | 1974-10-16 |
Family
ID=19812391
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES399402A Expired ES399402A1 (es) | 1971-02-03 | 1972-02-02 | Un procedimiento mejorado para la preparacion de urea. |
Country Status (6)
| Country | Link |
|---|---|
| BR (1) | BR7200630D0 (es) |
| CA (1) | CA986952A (es) |
| ES (1) | ES399402A1 (es) |
| GB (1) | GB1377305A (es) |
| NL (1) | NL7101398A (es) |
| SE (1) | SE387335B (es) |
-
1971
- 1971-02-03 NL NL7101398A patent/NL7101398A/xx not_active Application Discontinuation
-
1972
- 1972-01-27 GB GB389372A patent/GB1377305A/en not_active Expired
- 1972-02-02 ES ES399402A patent/ES399402A1/es not_active Expired
- 1972-02-03 CA CA133,857A patent/CA986952A/en not_active Expired
- 1972-02-03 SE SE7201285A patent/SE387335B/xx unknown
- 1972-02-03 BR BR630/72*[A patent/BR7200630D0/pt unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CA986952A (en) | 1976-04-06 |
| BR7200630D0 (pt) | 1973-06-21 |
| GB1377305A (en) | 1974-12-11 |
| SE387335B (sv) | 1976-09-06 |
| NL7101398A (es) | 1972-08-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| GB952764A (en) | Preparation of urea | |
| TR22418A (tr) | Amonyak ve karbon dioksitten uere hazirlanmasina mahsus usul | |
| ES406183A1 (es) | Procedimiento para preparar urea. | |
| GB1185944A (en) | Process for the Synthesis of Urea | |
| ES382368A1 (es) | Procedimiento para separar materiales no reaccionados de unefluente de sintesis de urea. | |
| GB1274504A (en) | Improvements in or relating to the synthesis of ammonia | |
| GB1247951A (en) | Process for preparing melamine from urea | |
| ES332835A1 (es) | Procedimiento para sintetizar un compuesto quimico. | |
| GB1022825A (en) | New or improved method and apparatus for carrying out chemical reactions between flowable substances and gases | |
| ES399402A1 (es) | Un procedimiento mejorado para la preparacion de urea. | |
| ES426480A1 (es) | Un procedimiento para preparar urea. | |
| ES390189A1 (es) | Procedimiento para la produccion de urea. | |
| GB945783A (en) | Process for the purification of urea | |
| ES427854A1 (es) | Metodo para recuperar amoniaco sustancialmente libre de gases acidos desde un vapor que lo contiene. | |
| ES443998A1 (es) | Procedimiento para el tratamiento de vapor de agua generado al concentrar una solucion acuosa de urea. | |
| ES389828A1 (es) | Un procedimiento para separar melamina de una mezcla ca- liente de gas de sintesis. | |
| GB981641A (en) | Production of urea | |
| ES286233A1 (es) | Procedimiento para la producción de urea partiendo de anhídrido carbónico y amoniaco | |
| ES386315A1 (es) | Un procedimiento para separar melamina desde una mezcla ga-seosa de sintesis, caliente. | |
| JPS5239626A (en) | Separation and recovery process of unreacted material on urea synthesi s | |
| GB1131906A (en) | Method of synthesizing urea | |
| ES335893A1 (es) | Un procedimiento para la sintesis de urea. | |
| ES385234A1 (es) | Procedimiento para la produccion de urea. | |
| ES275925A1 (es) | Procedimiento para la producción de urea a base de vapores amoniacales | |
| ES392053A1 (es) | Procedimiento para la deshidratacion elevada de los gases de la sintesis del amoniaco. |