CL2008003049A1 - Procedimiento para fabricar melamina que comprende: transformar urea en presencia de un catalizador en un rango de entre 370°c a 430°c; enfriar y filtrar el gas obtenido; separar la melamina por desublimacion; y reciclar parte del gas al reactor; donde el procedimiento se realiza a una presion de 4 a 10 bar absolutos. - Google Patents
Procedimiento para fabricar melamina que comprende: transformar urea en presencia de un catalizador en un rango de entre 370°c a 430°c; enfriar y filtrar el gas obtenido; separar la melamina por desublimacion; y reciclar parte del gas al reactor; donde el procedimiento se realiza a una presion de 4 a 10 bar absolutos.Info
- Publication number
- CL2008003049A1 CL2008003049A1 CL2008003049A CL2008003049A CL2008003049A1 CL 2008003049 A1 CL2008003049 A1 CL 2008003049A1 CL 2008003049 A CL2008003049 A CL 2008003049A CL 2008003049 A CL2008003049 A CL 2008003049A CL 2008003049 A1 CL2008003049 A1 CL 2008003049A1
- Authority
- CL
- Chile
- Prior art keywords
- melamine
- gas
- urea
- reactor
- procedure
- Prior art date
Links
- 229920000877 Melamine resin Polymers 0.000 title abstract 6
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title abstract 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title abstract 5
- 239000004202 carbamide Substances 0.000 title abstract 5
- 238000000034 method Methods 0.000 title abstract 4
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- 230000001131 transforming effect Effects 0.000 title abstract 2
- 239000003054 catalyst Substances 0.000 title 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 238000001816 cooling Methods 0.000 abstract 1
- 238000001914 filtration Methods 0.000 abstract 1
- 238000005243 fluidization Methods 0.000 abstract 1
- 238000004064 recycling Methods 0.000 abstract 1
- 239000003507 refrigerant Substances 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000011949 solid catalyst Substances 0.000 abstract 1
- 238000003786 synthesis reaction Methods 0.000 abstract 1
- 230000009466 transformation Effects 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/56—Preparation of melamine
- C07D251/60—Preparation of melamine from urea or from carbon dioxide and ammonia
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D251/00—Heterocyclic compounds containing 1,3,5-triazine rings
- C07D251/02—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings
- C07D251/12—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members
- C07D251/26—Heterocyclic compounds containing 1,3,5-triazine rings not condensed with other rings having three double bonds between ring members or between ring members and non-ring members with only hetero atoms directly attached to ring carbon atoms
- C07D251/40—Nitrogen atoms
- C07D251/54—Three nitrogen atoms
- C07D251/62—Purification of melamine
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Catalysts (AREA)
- Treating Waste Gases (AREA)
Abstract
PROCEDIMIENTO PARA LA FABRICACIÓN DE MELAMINA QUE COMPRENDE: A)TRANSFORMAR<br /> UREA EN PRESENCIA DE UN CATALIZADOR SÓLIDO EN UNO O VARIOS REACTORES CONECTADOS EN SERIE EN EL<br /> MARGEN DE TEMPERATURA DE 370°C A 430°C; B)ENFRIAR Y FILTRAR EL GAS OBTENIDO EN LA<br /> TRANSFORMACIÓN CON UREA; C)SEPARAR LA MELAMINA POR DESUBLIMACIÓN; Y RECICLAR UNA PARTE DEL GAS<br /> PRESENTE DESPUÉS DE LA SEPARACIÓN DE LA MELAMINA ("GAS DE CIRCULACIÓN") AL REACTOR O LOS<br /> REACTORES, CUYO PROCEDIMIENTO DONDE TODOS LOS PASOS DE SÍNTESIS ARRIBA INDICADOS SE REALIZAN A<br /> UNA PRESIÓN EN LA REGIÓN DE 4 BAR ABS. A 10 BAR ABS, Y DONDE, DESPUÉS DE RETIRAR LA MELAMINA, SE<br /> RAMIFICA UNA PORCIÓN DEL GAS DE RECICLADO Y SE ALIMENTA COMO "GAS DE FLUIDIZACIÓN SIN PASARLO POR<br /> EL LAVADOR DE UREA EN EL REACTOR" Y EL GAS DE CIRCULACIÓN ES CONVERTIDO POR EL SOPLADOR DE GAS REFRIGERANTE EN EL LAVADOR DE UREA.<br />
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| EP07118498A EP2050740A1 (de) | 2007-10-15 | 2007-10-15 | Verfahren zur Herstellung von Melamin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CL2008003049A1 true CL2008003049A1 (es) | 2010-06-11 |
Family
ID=39201606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CL2008003049A CL2008003049A1 (es) | 2007-10-15 | 2008-10-15 | Procedimiento para fabricar melamina que comprende: transformar urea en presencia de un catalizador en un rango de entre 370°c a 430°c; enfriar y filtrar el gas obtenido; separar la melamina por desublimacion; y reciclar parte del gas al reactor; donde el procedimiento se realiza a una presion de 4 a 10 bar absolutos. |
Country Status (19)
| Country | Link |
|---|---|
| US (1) | US9598379B2 (es) |
| EP (2) | EP2050740A1 (es) |
| JP (1) | JP5721435B2 (es) |
| KR (1) | KR101563021B1 (es) |
| CN (1) | CN101827829B (es) |
| AR (1) | AR068868A1 (es) |
| AU (1) | AU2008313759B2 (es) |
| BR (1) | BRPI0818422A2 (es) |
| CA (1) | CA2701977C (es) |
| CL (1) | CL2008003049A1 (es) |
| EA (1) | EA201000476A1 (es) |
| EG (1) | EG26253A (es) |
| MA (1) | MA31829B1 (es) |
| MY (1) | MY152284A (es) |
| PL (1) | PL2212302T3 (es) |
| TN (1) | TN2010000159A1 (es) |
| UA (1) | UA103755C2 (es) |
| WO (1) | WO2009050169A2 (es) |
| ZA (1) | ZA201003378B (es) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102009052420C5 (de) * | 2009-11-10 | 2014-05-22 | Lurgi Gmbh | Verfahren zur kontinuierlichen Herstellung von Melamin |
| CA2832887A1 (en) | 2011-04-11 | 2012-10-18 | ADA-ES, Inc. | Fluidized bed method and system for gas component capture |
| CN102219754B (zh) * | 2011-04-28 | 2013-09-11 | 四川金象赛瑞化工股份有限公司 | 节能节资型气相淬冷法蜜胺生产系统及其工艺 |
| WO2014047354A1 (en) | 2012-09-20 | 2014-03-27 | ADA-ES, Inc. | Method and system to reclaim functional sites on a sorbent contaminated by heat stable salts |
| CN110028460A (zh) * | 2018-01-12 | 2019-07-19 | 郗运柱 | 一种三聚氰胺的生产系统及其生产工艺 |
| KR102293767B1 (ko) * | 2019-11-26 | 2021-08-26 | 한국과학기술연구원 | 금속 단일원자 촉매의 제조방법 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE760072A (fr) * | 1969-12-11 | 1971-06-09 | Stamicarbon | Procede pour la separation de melamine a partir d'un melange gazeux de synthese comprenant de la vapeur de melamine |
| NL6919152A (es) * | 1969-12-20 | 1971-06-22 | ||
| NL7903473A (nl) * | 1979-05-03 | 1980-11-05 | Stamicarbon | Werkwijze voor het bereiden van melamine. |
| DE3302833C2 (de) * | 1983-01-28 | 1987-01-15 | Basf Ag, 6700 Ludwigshafen | Verfahren zur Herstellung von Melamin |
| ATE477247T1 (de) | 2003-01-17 | 2010-08-15 | Basf Se | Zweistufiger reaktor für die melaminsynthese |
-
2007
- 2007-10-15 EP EP07118498A patent/EP2050740A1/de not_active Ceased
-
2008
- 2008-10-14 PL PL08838802.0T patent/PL2212302T3/pl unknown
- 2008-10-14 WO PCT/EP2008/063804 patent/WO2009050169A2/de not_active Ceased
- 2008-10-14 BR BRPI0818422-4A patent/BRPI0818422A2/pt not_active Application Discontinuation
- 2008-10-14 JP JP2010529355A patent/JP5721435B2/ja not_active Expired - Fee Related
- 2008-10-14 AR ARP080104480A patent/AR068868A1/es unknown
- 2008-10-14 EP EP08838802.0A patent/EP2212302B1/de active Active
- 2008-10-14 UA UAA201005864A patent/UA103755C2/ru unknown
- 2008-10-14 CA CA2701977A patent/CA2701977C/en active Active
- 2008-10-14 EA EA201000476A patent/EA201000476A1/ru unknown
- 2008-10-14 AU AU2008313759A patent/AU2008313759B2/en not_active Ceased
- 2008-10-14 MY MYPI20101583 patent/MY152284A/en unknown
- 2008-10-14 KR KR1020107010298A patent/KR101563021B1/ko not_active Expired - Fee Related
- 2008-10-14 CN CN2008801116953A patent/CN101827829B/zh active Active
- 2008-10-14 US US12/738,049 patent/US9598379B2/en active Active
- 2008-10-15 CL CL2008003049A patent/CL2008003049A1/es unknown
-
2010
- 2010-04-12 EG EG2010040589A patent/EG26253A/en active
- 2010-04-13 TN TN2010000159A patent/TN2010000159A1/fr unknown
- 2010-04-14 MA MA32767A patent/MA31829B1/fr unknown
- 2010-05-13 ZA ZA2010/03378A patent/ZA201003378B/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| EP2050740A1 (de) | 2009-04-22 |
| AU2008313759B2 (en) | 2013-01-24 |
| JP2011500622A (ja) | 2011-01-06 |
| US9598379B2 (en) | 2017-03-21 |
| CN101827829B (zh) | 2012-07-25 |
| WO2009050169A2 (de) | 2009-04-23 |
| MY152284A (en) | 2014-09-15 |
| CN101827829A (zh) | 2010-09-08 |
| AR068868A1 (es) | 2009-12-09 |
| EG26253A (en) | 2013-06-02 |
| KR101563021B1 (ko) | 2015-10-23 |
| PL2212302T3 (pl) | 2016-11-30 |
| CA2701977C (en) | 2016-05-17 |
| UA103755C2 (ru) | 2013-11-25 |
| BRPI0818422A2 (pt) | 2015-04-22 |
| MA31829B1 (fr) | 2010-11-01 |
| US20100222582A1 (en) | 2010-09-02 |
| EP2212302B1 (de) | 2016-04-27 |
| KR20100091968A (ko) | 2010-08-19 |
| WO2009050169A3 (de) | 2009-07-16 |
| AU2008313759A1 (en) | 2009-04-23 |
| JP5721435B2 (ja) | 2015-05-20 |
| ZA201003378B (en) | 2011-07-27 |
| TN2010000159A1 (fr) | 2011-11-11 |
| EP2212302A2 (de) | 2010-08-04 |
| CA2701977A1 (en) | 2009-04-23 |
| EA201000476A1 (ru) | 2010-10-29 |
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