BG60247B2 - Метод за получаване на карбамид - Google Patents
Метод за получаване на карбамидInfo
- Publication number
- BG60247B2 BG60247B2 BG69250A BG6925085A BG60247B2 BG 60247 B2 BG60247 B2 BG 60247B2 BG 69250 A BG69250 A BG 69250A BG 6925085 A BG6925085 A BG 6925085A BG 60247 B2 BG60247 B2 BG 60247B2
- Authority
- BG
- Bulgaria
- Prior art keywords
- urea
- zone
- synthesis
- solution
- carbamate
- Prior art date
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)
- Heat Treatment Of Sheet Steel (AREA)
- Catalysts (AREA)
- Agricultural Chemicals And Associated Chemicals (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
- Measurement Of Radiation (AREA)
- Compounds Of Unknown Constitution (AREA)
- Medicines Containing Material From Animals Or Micro-Organisms (AREA)
- Acyclic And Carbocyclic Compounds In Medicinal Compositions (AREA)
- Measuring Pulse, Heart Rate, Blood Pressure Or Blood Flow (AREA)
- Pharmaceuticals Containing Other Organic And Inorganic Compounds (AREA)
Abstract
Методът създава възможност в зоната за кондензация да се получи поне 30% от равновесно достижимото количество карбамид за условията на реакцията, като сместа, съдържаща карбамат и карбамид, се отвежда към зоната за синтез. Предпочита се получаванетона карбамид да продължава, докато се получат от 50 до 80% от равновесното количество. По метода разтворът за синтез, съставен от карбамат и свободен амоняк, се образува от въглероден диоксид и излишък на амоняк при налягане 125-350 бара, като поне част от карбамата, съдържащ се в разтвора, се разлага в дестилационната зона при налягането на зонатаза синтез или при по-ниско налягане чрез подаване на топлина и при контакт в противоток с очистващ газ. Продуктите от това разлагане,част от излишъка от амоняк и очистващият газ се отстраняват от дестилационната зона като газова смес и най-малко частот тази смес се кондензира в зоната за кондензация. Очистеният разтвор за синтез на карбамид се превръща в разтвор на карбамид или твърд карбамид. 6 претенции, 1 фигура
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL8400839A NL8400839A (nl) | 1984-03-16 | 1984-03-16 | Werkwijze voor de bereiding van ureum. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| BG60247B2 true BG60247B2 (bg) | 1994-03-24 |
| BG60247B1 BG60247B1 (bg) | 1994-03-24 |
Family
ID=19843651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BG069250A BG60247B1 (bg) | 1984-03-16 | 1985-03-14 | Метод за получаване на карбамид |
Country Status (34)
| Country | Link |
|---|---|
| EP (1) | EP0155735B1 (bg) |
| JP (1) | JPS60209555A (bg) |
| KR (1) | KR870001692B1 (bg) |
| CN (2) | CN85100951A (bg) |
| AT (1) | ATE38033T1 (bg) |
| AU (1) | AU579614B2 (bg) |
| BG (1) | BG60247B1 (bg) |
| BR (1) | BR8501156A (bg) |
| CA (1) | CA1330444C (bg) |
| DD (1) | DD232038A1 (bg) |
| DE (1) | DE3565680D1 (bg) |
| EG (1) | EG16600A (bg) |
| ES (1) | ES541294A0 (bg) |
| FI (1) | FI851046L (bg) |
| GE (1) | GEP19960461B (bg) |
| GR (1) | GR850639B (bg) |
| HU (1) | HUT39721A (bg) |
| IL (1) | IL74522A0 (bg) |
| IN (1) | IN164392B (bg) |
| LT (1) | LT2206B (bg) |
| LV (1) | LV5225A3 (bg) |
| MA (1) | MA20372A1 (bg) |
| MX (1) | MX7357E (bg) |
| NL (1) | NL8400839A (bg) |
| NO (1) | NO851044L (bg) |
| NZ (1) | NZ211460A (bg) |
| PL (1) | PL252389A1 (bg) |
| PT (1) | PT80109B (bg) |
| RO (1) | RO91349B (bg) |
| SU (1) | SU1456009A3 (bg) |
| TR (1) | TR22418A (bg) |
| YU (1) | YU41685A (bg) |
| ZA (1) | ZA851978B (bg) |
| ZW (1) | ZW4185A1 (bg) |
Families Citing this family (28)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8303888A (nl) * | 1983-11-13 | 1985-06-03 | Unie Van Kunstmestfab Bv | Werkwijze voor de bereiding van ureum. |
| NL8800284A (nl) * | 1988-02-08 | 1989-09-01 | Stamicarbon | Werkwijze voor de bereiding van ureum. |
| US6274767B1 (en) † | 1992-11-19 | 2001-08-14 | Urea Casale, S.A. | Process for the revamping of urea synthesis plants consisting of a stripper with ammonia |
| NL1000416C2 (nl) * | 1995-05-23 | 1996-11-25 | Dsm Nv | Werkwijze voor de bereiding van ureum. |
| US5767313A (en) * | 1995-05-23 | 1998-06-16 | Dsm N.V. | Method for the preparation of urea |
| JP3987607B2 (ja) * | 1996-10-07 | 2007-10-10 | 東洋エンジニアリング株式会社 | 改良された尿素合成方法および装置 |
| IT1290423B1 (it) * | 1996-10-17 | 1998-12-03 | Eurotecnica Contractors And En | Procedimento per la sintesi di urea da anidride carbonica e ammoniaca |
| NL1004977C2 (nl) * | 1997-01-13 | 1998-07-15 | Dsm Nv | Methode om de capaciteit van een bestaand ureum proces te verhogen. |
| NL1005118C2 (nl) * | 1997-01-29 | 1998-07-30 | Dsm Nv | Werkwijze voor de bereiding van ureum. |
| NL1009516C2 (nl) * | 1998-06-29 | 2000-01-04 | Dsm Nv | Werkwijze voor de bereiding van ureum. |
| NL1016643C2 (nl) * | 2000-11-17 | 2002-05-22 | Dsm Nv | Werkwijze voor de bereiding van ureum. |
| NL1019081C2 (nl) | 2001-10-01 | 2003-04-02 | Dsm Nv | Werkwijze voor de bereiding van ureum. |
| JP4426415B2 (ja) | 2004-10-01 | 2010-03-03 | 東洋エンジニアリング株式会社 | 反応装置 |
| WO2006118071A1 (ja) * | 2005-04-27 | 2006-11-09 | Toyo Engineering Corporation | 尿素合成装置およびその改造方法 |
| EP2107051A1 (en) | 2008-04-02 | 2009-10-07 | DSM IP Assets B.V. | Process for inreasing the capacity of an existing urea plant |
| EP2123633A1 (en) | 2008-05-19 | 2009-11-25 | DSM IP Assets B.V. | Process for the production of urea from ammonia and carbon dioxide |
| EP2123634A1 (en) | 2008-05-19 | 2009-11-25 | DSM IP Assets B.V. | Process for the production of urea from ammonia and carbon dioxide |
| AU2013257378B2 (en) | 2012-05-03 | 2017-03-09 | Stamicarbon B.V. | Method and apparatus for the production of urea from ammonia and carbon dioxide |
| WO2014192823A1 (ja) | 2013-05-28 | 2014-12-04 | 東洋エンジニアリング株式会社 | 尿素合成方法 |
| EP2843304A1 (en) | 2013-08-29 | 2015-03-04 | Casale SA | A shell-and-tube apparatus for heat recovery from a hot process stream |
| USD843660S1 (en) | 2017-11-27 | 2019-03-19 | Mary Kay Inc. | Cosmetic compact |
| USD850006S1 (en) | 2017-11-27 | 2019-05-28 | Mary Kay Inc. | Cosmetic compact |
| USD863685S1 (en) | 2017-11-27 | 2019-10-15 | Mary Kay Inc. | Cosmetic compact |
| US12247002B2 (en) | 2019-03-14 | 2025-03-11 | Toyo Engineering Corporation | Process and apparatus for urea production |
| JP7157684B2 (ja) | 2019-03-14 | 2022-10-20 | 東洋エンジニアリング株式会社 | 尿素製造方法および装置 |
| JP2023514990A (ja) * | 2020-02-25 | 2023-04-12 | カサーレ エスエー | ウレアを合成するためのプロセスおよびプラント |
| CN115364808A (zh) * | 2022-07-26 | 2022-11-22 | 哈尔滨工业大学（深圳） | 一种尿素连续合成系统 |
| US20260124595A1 (en) | 2024-03-20 | 2026-05-07 | Stamicarbon B.V. | Urea plant with modified condenser and modified reactor internals |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL101446C (bg) * | 1960-04-08 | |||
| NL165712C (nl) * | 1970-05-30 | 1981-05-15 | Stamicarbon | Werkwijze en inrichting voor het bij synthesedruk terug- winnen van ammoniak en kooldioxyde uit het spuigas van een ureumsynthese. |
| US4013718A (en) * | 1970-09-03 | 1977-03-22 | Snam Progetti S.P.A. | Integrated process for the production of urea |
| AU8825782A (en) * | 1981-09-01 | 1983-03-28 | Unie Van Kunstmestfabrieken B.V. | Process for the preparation of urea |
-
1984
- 1984-03-16 NL NL8400839A patent/NL8400839A/nl not_active Application Discontinuation
-
1985
- 1985-03-06 IL IL74522A patent/IL74522A0/xx unknown
- 1985-03-07 IN IN178/MAS/85A patent/IN164392B/en unknown
- 1985-03-11 MA MA20596A patent/MA20372A1/fr unknown
- 1985-03-11 ZW ZW41/85A patent/ZW4185A1/xx unknown
- 1985-03-12 TR TR11234/85A patent/TR22418A/xx unknown
- 1985-03-12 EG EG159/85A patent/EG16600A/xx active
- 1985-03-14 BG BG069250A patent/BG60247B1/bg unknown
- 1985-03-14 CA CA000476485A patent/CA1330444C/en not_active Expired - Lifetime
- 1985-03-14 PT PT80109A patent/PT80109B/pt unknown
- 1985-03-14 GR GR850639A patent/GR850639B/el unknown
- 1985-03-15 NZ NZ211460A patent/NZ211460A/en unknown
- 1985-03-15 RO RO118002A patent/RO91349B/ro unknown
- 1985-03-15 PL PL25238985A patent/PL252389A1/xx unknown
- 1985-03-15 BR BR8501156A patent/BR8501156A/pt not_active IP Right Cessation
- 1985-03-15 ES ES541294A patent/ES541294A0/es active Granted
- 1985-03-15 DD DD85274164A patent/DD232038A1/xx unknown
- 1985-03-15 MX MX8511479U patent/MX7357E/es unknown
- 1985-03-15 DE DE8585200387T patent/DE3565680D1/de not_active Expired
- 1985-03-15 JP JP60050691A patent/JPS60209555A/ja active Pending
- 1985-03-15 AT AT85200387T patent/ATE38033T1/de not_active IP Right Cessation
- 1985-03-15 HU HU85976A patent/HUT39721A/hu unknown
- 1985-03-15 SU SU853873452A patent/SU1456009A3/ru active
- 1985-03-15 AU AU39893/85A patent/AU579614B2/en not_active Ceased
- 1985-03-15 YU YU00416/85A patent/YU41685A/xx unknown
- 1985-03-15 NO NO851044A patent/NO851044L/no unknown
- 1985-03-15 EP EP85200387A patent/EP0155735B1/en not_active Expired
- 1985-03-15 ZA ZA851978A patent/ZA851978B/xx unknown
- 1985-03-15 KR KR1019850001673A patent/KR870001692B1/ko not_active Expired
- 1985-03-15 FI FI851046A patent/FI851046L/fi not_active Application Discontinuation
- 1985-04-01 CN CN198585100951A patent/CN85100951A/zh active Pending
- 1985-04-01 CN CN85101703A patent/CN1010308B/zh not_active Expired
-
1993
- 1993-05-06 LV LV930297A patent/LV5225A3/xx unknown
- 1993-06-21 GE GEAP1993910A patent/GEP19960461B/en unknown
- 1993-06-30 LT LTRP725A patent/LT2206B/xx not_active IP Right Cessation
Also Published As
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| BG60247B1 (bg) | Метод за получаване на карбамид | |
| ATE14574T1 (de) | Verfahren zur rueckgewinnung von harnstoff, ammoniak und kohlendioxid aus prozesswasser bei der ammoniak- und harnstoffsynthese. | |
| BG45386A3 (bg) | Метод за получаване на карбамид | |
| BG45384A3 (bg) | Метод за получаване на карбамид | |
| ATE1504T1 (de) | Verfahren zur herstellung von melamin. | |
| KR840001951A (ko) | 요소 합성법 | |
| ATE45131T1 (de) | Verfahren zum gewinnen von ammoniak aus einem ammoniak, kohlendioxyd und schwefelwasserstoff enthaltenden abwasser. | |
| ES426480A1 (es) | Un procedimiento para preparar urea. | |
| ES443998A1 (es) | Procedimiento para el tratamiento de vapor de agua generado al concentrar una solucion acuosa de urea. | |
| GB1396249A (en) | Process for recovery of hydrogen cyanide | |
| ATE40343T1 (de) | Verfahren zur herstellung von cyanamid. | |
| GB1502190A (en) | Methanol synthesis gas production | |
| GB987500A (en) | Process for the production of urea | |
| GB1423977A (en) | Urea synthesis with heat recovery and ammonium carbamate recirculation | |
| GB1104710A (en) | Process for making ammonia and urea | |
| GB1046271A (en) | Urea manufacturing process | |
| ES408862A1 (es) | Procedimiento para la obtencion de cloruro de cianogeno pu-ro. | |
| GB837030A (en) | Production of hydrogen | |
| GB1467929A (en) | Process for the manufacture of carbon oxysulphide | |
| ES8707475A1 (es) | Procedimiento para preparar amoniaco |