AR021254A1 - Procedimiento para la elaboracion de melamina pura - Google Patents
Procedimiento para la elaboracion de melamina puraInfo
- Publication number
- AR021254A1 AR021254A1 ARP990105761A ARP990105761A AR021254A1 AR 021254 A1 AR021254 A1 AR 021254A1 AR P990105761 A ARP990105761 A AR P990105761A AR P990105761 A ARP990105761 A AR P990105761A AR 021254 A1 AR021254 A1 AR 021254A1
- Authority
- AR
- Argentina
- Prior art keywords
- melamine
- ammonia
- cooled
- procedure
- preparation
- Prior art date
Links
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)
Abstract
Procedimiento para la elaboracion de melamina pura, en el que la masa fundida de melamina obtenida a partir de urea en un proceso de alta presion esenfriada a una temperatura de aproximadamente 1 a 50sC superior al punto de fusion de la melamina,fun cion de la presion parcial de amoníaco circunstancial,mediante el agregado de amoníaco, luego de lo cual a) se enfría la melamina con agua o una solucion o suspension acuosa de amoníaco y/o melamina y sesolidifica la melamina, o b) se apaga conamoní aco frío líquido o gaseoso, con lo que solidifica la melamina, la que se sigue enfriando, en una segunda etapa,con agua o una solucion o suspension acuosa de amoníaco y/o melamina, y c) se aísla finalmente la melamina.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT189498 | 1998-11-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR021254A1 true AR021254A1 (es) | 2002-07-03 |
Family
ID=3523321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP990105761A AR021254A1 (es) | 1998-11-13 | 1999-11-12 | Procedimiento para la elaboracion de melamina pura |
Country Status (22)
| Country | Link |
|---|---|
| US (1) | US6790956B1 (es) |
| EP (1) | EP1129080B1 (es) |
| JP (1) | JP2002529539A (es) |
| KR (1) | KR100643552B1 (es) |
| CN (1) | CN1160342C (es) |
| AR (1) | AR021254A1 (es) |
| AT (1) | ATE247648T1 (es) |
| AU (1) | AU767818B2 (es) |
| BR (1) | BR9915040A (es) |
| CA (1) | CA2350777A1 (es) |
| CZ (1) | CZ20011625A3 (es) |
| DE (1) | DE59906703D1 (es) |
| EA (1) | EA003233B1 (es) |
| EE (1) | EE200100262A (es) |
| ES (1) | ES2209560T3 (es) |
| HU (1) | HUP0104769A2 (es) |
| NO (1) | NO20012285D0 (es) |
| PL (1) | PL198432B1 (es) |
| RO (1) | RO119717B1 (es) |
| SK (1) | SK6192001A3 (es) |
| TR (1) | TR200101341T2 (es) |
| WO (1) | WO2000029393A1 (es) |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AT410210B (de) | 2000-08-07 | 2003-03-25 | Agrolinz Melamin Gmbh | Verfahren zur herstellung von melamin |
| US20030028020A1 (en) * | 2001-07-27 | 2003-02-06 | Gupta Ram B. | Process for the synthesis of high purity melamine |
| NL1018936C2 (nl) * | 2001-09-12 | 2003-03-13 | Dsm Nv | Werkwijze voor het verkrijgen van kristallijn melamine uit een melaminesmelt. |
| WO2003045927A1 (de) * | 2001-11-16 | 2003-06-05 | Ami - Agrolinz Melamine International Gmbh | Verfahren zur herstellung von melemfreiem melamin und quencher |
| AT410795B (de) * | 2001-11-16 | 2003-07-25 | Agrolinz Melamin Gmbh | Verfahren zur herstellung von melemfreiem melamin |
| ITMI20021026A1 (it) * | 2002-05-14 | 2003-11-14 | Eurotecnica Dev & Licensing S | Processo di produzione di melammina da urea e particolarmente per ottenere off-gas privi di melammina nello stadio di prima separazione |
| ITMI20021422A1 (it) * | 2002-06-27 | 2003-12-29 | Eurotecnica Dev & Licensing S | Procedimento e dispositivo per il recupero della melammina per espansione dalle sue miscele grezze prodotte nel processo di pirolisi dell'ur |
| DE102004018784A1 (de) * | 2004-04-14 | 2005-11-03 | Ami-Agrolinz Melamine International Gmbh | Verfahren zur Herstellung von reinem Melamin |
| CN1872842B (zh) * | 2006-06-27 | 2010-05-12 | 山东联合化工股份有限公司 | 常压两步法碳铵联产三聚氰胺工艺 |
| DE102006055571B4 (de) | 2006-11-20 | 2018-09-27 | Urea Casale S.A. | Verfahren und Vorrichtung zur Aufarbeitung einer Melaminschmelze |
| EA201070769A1 (ru) * | 2007-12-20 | 2010-12-30 | ДСМ Ай Пи ЭССЕТС Б.В. | Способ получения меламина |
| EP2098516A1 (en) * | 2008-03-04 | 2009-09-09 | Urea Casale S.A. | Process for the production of high purity melamine from urea |
| RU2495876C1 (ru) | 2012-09-10 | 2013-10-20 | Открытое Акционерное Общество "Научно-Исследовательский И Проектный Институт Карбамида И Продуктов Органического Синтеза" (Оао Ниик) | Способ очистки меламина |
| RU2495875C1 (ru) * | 2012-10-11 | 2013-10-20 | Открытое Акционерное Общество "Научно-Исследовательский И Проектный Институт Карбамида И Продуктов Органического Синтеза" (Оао Ниик) | Способ охлаждения расплава меламина |
| EP3208264A1 (en) * | 2016-02-19 | 2017-08-23 | Casale SA | Method for revamping a high pressure melamine plant |
| EP3272743A1 (en) | 2016-07-22 | 2018-01-24 | Casale SA | Process for melamine purification |
| EP3743203B1 (en) * | 2018-01-26 | 2022-12-28 | Casale Sa | Plant for the synthesis of melamine with offgas recovery in a tied-in urea plant |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3386999A (en) * | 1966-02-10 | 1968-06-04 | Chemical Construction Corp | Synthesis of melamine |
| US3637686A (en) * | 1969-02-10 | 1972-01-25 | Nissan Chemical Ind Ltd | Process for recovering purified melamine |
| NL8201479A (nl) * | 1982-04-07 | 1983-11-01 | Stamicarbon | Werkwijze voor het bereiden van melamine. |
| AT402294B (de) * | 1994-12-23 | 1997-03-25 | Agrolinz Melamin Gmbh | Verfahren zur herstellung von hochreinem melamin |
| AT402296B (de) | 1995-02-03 | 1997-03-25 | Agrolinz Melamin Gmbh | Verfahren zur reinigung von melamin |
| AT403579B (de) * | 1995-12-07 | 1998-03-25 | Agrolinz Melamin Gmbh | Verfahren zur herstellung von hochreinem melamin |
-
1999
- 1999-11-05 EA EA200100537A patent/EA003233B1/ru not_active IP Right Cessation
- 1999-11-05 US US09/830,074 patent/US6790956B1/en not_active Expired - Lifetime
- 1999-11-05 CZ CZ20011625A patent/CZ20011625A3/cs unknown
- 1999-11-05 EP EP99972208A patent/EP1129080B1/de not_active Expired - Lifetime
- 1999-11-05 DE DE59906703T patent/DE59906703D1/de not_active Expired - Lifetime
- 1999-11-05 TR TR2001/01341T patent/TR200101341T2/xx unknown
- 1999-11-05 HU HU0104769A patent/HUP0104769A2/hu unknown
- 1999-11-05 AU AU11604/00A patent/AU767818B2/en not_active Ceased
- 1999-11-05 ES ES99972208T patent/ES2209560T3/es not_active Expired - Lifetime
- 1999-11-05 WO PCT/EP1999/008462 patent/WO2000029393A1/de active IP Right Grant
- 1999-11-05 CN CNB998132322A patent/CN1160342C/zh not_active Expired - Lifetime
- 1999-11-05 EE EEP200100262A patent/EE200100262A/xx unknown
- 1999-11-05 BR BR9915040-9A patent/BR9915040A/pt not_active Application Discontinuation
- 1999-11-05 PL PL347724A patent/PL198432B1/pl unknown
- 1999-11-05 AT AT99972208T patent/ATE247648T1/de active
- 1999-11-05 SK SK619-2001A patent/SK6192001A3/sk unknown
- 1999-11-05 JP JP2000582380A patent/JP2002529539A/ja active Pending
- 1999-11-05 CA CA002350777A patent/CA2350777A1/en not_active Abandoned
- 1999-11-05 RO ROA200100516A patent/RO119717B1/ro unknown
- 1999-11-05 KR KR1020017005952A patent/KR100643552B1/ko not_active IP Right Cessation
- 1999-11-12 AR ARP990105761A patent/AR021254A1/es active IP Right Grant
-
2001
- 2001-05-09 NO NO20012285A patent/NO20012285D0/no not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| WO2000029393A1 (de) | 2000-05-25 |
| CN1160342C (zh) | 2004-08-04 |
| US6790956B1 (en) | 2004-09-14 |
| KR100643552B1 (ko) | 2006-11-10 |
| KR20010073230A (ko) | 2001-07-31 |
| EP1129080A1 (de) | 2001-09-05 |
| SK6192001A3 (en) | 2001-12-03 |
| NO20012285L (no) | 2001-05-09 |
| ES2209560T3 (es) | 2004-06-16 |
| AU1160400A (en) | 2000-06-05 |
| DE59906703D1 (de) | 2003-09-25 |
| EE200100262A (et) | 2002-08-15 |
| NO20012285D0 (no) | 2001-05-09 |
| AU767818B2 (en) | 2003-11-27 |
| PL347724A1 (en) | 2002-04-22 |
| TR200101341T2 (tr) | 2001-11-21 |
| JP2002529539A (ja) | 2002-09-10 |
| HUP0104769A2 (hu) | 2002-03-28 |
| EP1129080B1 (de) | 2003-08-20 |
| CA2350777A1 (en) | 2000-05-25 |
| EA200100537A1 (ru) | 2001-12-24 |
| CZ20011625A3 (cs) | 2001-08-15 |
| EA003233B1 (ru) | 2003-02-27 |
| ATE247648T1 (de) | 2003-09-15 |
| RO119717B1 (ro) | 2005-02-28 |
| CN1326448A (zh) | 2001-12-12 |
| PL198432B1 (pl) | 2008-06-30 |
| BR9915040A (pt) | 2001-07-17 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant, registration |