ES475529A1 - Un procedimiento para la separacion de carbamato de amonio a partir de una solucion de sintesis de urea - Google Patents
Un procedimiento para la separacion de carbamato de amonio a partir de una solucion de sintesis de ureaInfo
- Publication number
- ES475529A1 ES475529A1 ES475529A ES475529A ES475529A1 ES 475529 A1 ES475529 A1 ES 475529A1 ES 475529 A ES475529 A ES 475529A ES 475529 A ES475529 A ES 475529A ES 475529 A1 ES475529 A1 ES 475529A1
- Authority
- ES
- Spain
- Prior art keywords
- removal
- ammonium carbamate
- urea
- urea solution
- aqueous urea
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
Un procedimiento para la separación de carbamato de amonio a partir de una solución de síntesis de urea, en el que la solución de síntesis de urea se hace fluir en dirección descendente a lo largo de una pared en forma de película delgada a una presión de 120-200 atm y una temperatura de 170-200ºC en relación de contracorriente con un agente gaseoso de separación de componentes volátiles, mientras que se aplica calor, y la solución de síntesis de urea sometida a separación de componentes volátiles y la mezcla gaseosa formada en la separación de componentes volátiles se descargan por la vía de cámaras de recogida.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL7713190A NL7713190A (nl) | 1977-11-30 | 1977-11-30 | Werkwijze en inrichting voor het verwijderen van ammoniumcarbamaat uit een ureumsynthese- oplossing. |
Publications (1)
Publication Number | Publication Date |
---|---|
ES475529A1 true ES475529A1 (es) | 1979-04-01 |
Family
ID=19829649
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
ES475529A Expired ES475529A1 (es) | 1977-11-30 | 1978-11-29 | Un procedimiento para la separacion de carbamato de amonio a partir de una solucion de sintesis de urea |
Country Status (10)
Country | Link |
---|---|
US (1) | US4486270A (es) |
EP (1) | EP0002298B1 (es) |
JP (1) | JPS5490118A (es) |
AR (1) | AR216818A1 (es) |
BR (1) | BR7807844A (es) |
CA (1) | CA1113961A (es) |
DE (1) | DE2860363D1 (es) |
ES (1) | ES475529A1 (es) |
IN (1) | IN150195B (es) |
NL (1) | NL7713190A (es) |
Families Citing this family (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5746954A (en) * | 1980-09-05 | 1982-03-17 | Mitsui Toatsu Chem Inc | Synthesis of urea |
US4613697A (en) * | 1982-06-08 | 1986-09-23 | Montedison S.P.A. | Process for the displacement to the gaseous phase of the excess of NH3 |
UA26895C2 (uk) * | 1990-03-12 | 1999-12-29 | Уріа Казале С.А. | Спосіб коhдеhсації парів аміаку, вуглекислого газу і води та пристрій для його здійсhеhhя |
US7687041B2 (en) * | 2008-02-27 | 2010-03-30 | Kellogg Brown & Root Llc | Apparatus and methods for urea production |
EP3569305A1 (en) | 2018-05-16 | 2019-11-20 | Yara International ASA | High pressure strippers for use in urea plants |
US10767529B2 (en) | 2018-11-08 | 2020-09-08 | Faurecia Emissions Control Technologies, Usa, Llc | Automotive exhaust aftertreatment system having onboard ammonia reactor with heated doser |
US10876454B2 (en) | 2018-11-08 | 2020-12-29 | Faurecia Emissions Control Technologies, Usa, Llc | Automotive exhaust aftertreatment system with multi-reductant injection and doser controls |
US10683787B2 (en) | 2018-11-08 | 2020-06-16 | Faurecia Emissions Control Technologies, Usa, Llc | Automotive exhaust aftertreatment system having onboard ammonia reactor with hybrid heating |
EP3733279A1 (en) | 2019-05-03 | 2020-11-04 | Yara International ASA | High pressure strippers for use in urea plants |
WO2020246886A1 (en) * | 2019-06-07 | 2020-12-10 | Stamicarbon B.V. | Urea plant with stripper and stripping method |
US11193413B2 (en) | 2019-12-12 | 2021-12-07 | Faurecia Emissions Control Technologies, Usa, Llc | Exhaust aftertreatment system with virtual temperature determination and control |
US11319853B2 (en) | 2020-03-31 | 2022-05-03 | Faurecia Emissions Control Technologies, Usa, Llc | Automotive exhaust aftertreatment system with doser |
US11022014B1 (en) | 2020-04-28 | 2021-06-01 | Faurecia Emissions Control Technologies, Usa, Llc | Exhaust aftertreatment system with heated flash-boiling doser |
US11511239B2 (en) | 2020-04-29 | 2022-11-29 | Faurecia Emissions Control Technologies, Usa, Llc | Heated flash-boiling doser with integrated helix |
US11092054B1 (en) | 2020-04-29 | 2021-08-17 | Faurecia Emissions Control Technologies, Usa, Llc | Flash-boiling doser with thermal transfer helix |
US11384667B2 (en) | 2020-05-29 | 2022-07-12 | Faurecia Emissions Control Technologies, Usa, Llc | Exhaust aftertreatment system with heated dosing control |
US11225894B1 (en) | 2020-06-30 | 2022-01-18 | Faurecia Emissions Control Technologies, Usa, Llc | Exhaust aftertreatment system with thermally controlled reagent doser |
EP4082643A1 (en) * | 2021-04-28 | 2022-11-02 | Casale Sa | Improvements to equipment of urea plants |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE212014C (es) * | ||||
NL250349A (es) * | 1960-04-08 | |||
US3471558A (en) * | 1964-02-27 | 1969-10-07 | Allied Chem | Method for the decomposition and evaporation of urea synthesis effluent |
NL6414630A (es) * | 1964-12-16 | 1966-06-17 | ||
AT290545B (de) * | 1967-09-29 | 1971-06-11 | Snam Progetti | Verfahren zur Herstellung von Harnstoff mit niedrigem Carbamatgehalt |
NL172058C (nl) * | 1972-06-12 | 1983-07-01 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
-
1977
- 1977-11-30 NL NL7713190A patent/NL7713190A/xx not_active Application Discontinuation
-
1978
- 1978-11-22 CA CA316,689A patent/CA1113961A/en not_active Expired
- 1978-11-25 EP EP78200317A patent/EP0002298B1/en not_active Expired
- 1978-11-25 DE DE7878200317T patent/DE2860363D1/de not_active Expired
- 1978-11-27 AR AR274586A patent/AR216818A1/es active
- 1978-11-28 IN IN856/DEL/78A patent/IN150195B/en unknown
- 1978-11-29 JP JP14770778A patent/JPS5490118A/ja active Pending
- 1978-11-29 BR BR7807844A patent/BR7807844A/pt unknown
- 1978-11-29 ES ES475529A patent/ES475529A1/es not_active Expired
-
1981
- 1981-10-19 US US06/312,662 patent/US4486270A/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
IN150195B (es) | 1982-08-14 |
NL7713190A (nl) | 1979-06-01 |
EP0002298A3 (en) | 1979-06-27 |
JPS5490118A (en) | 1979-07-17 |
DE2860363D1 (en) | 1981-03-12 |
BR7807844A (pt) | 1979-07-31 |
CA1113961A (en) | 1981-12-08 |
EP0002298B1 (en) | 1981-01-21 |
EP0002298A2 (en) | 1979-06-13 |
AR216818A1 (es) | 1980-01-31 |
US4486270A (en) | 1984-12-04 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
FD1A | Patent lapsed |
Effective date: 19971201 |