NO20012285L - Fremgangsmåte til fremstilling av rent melamin - Google Patents
Fremgangsmåte til fremstilling av rent melaminInfo
- Publication number
- NO20012285L NO20012285L NO20012285A NO20012285A NO20012285L NO 20012285 L NO20012285 L NO 20012285L NO 20012285 A NO20012285 A NO 20012285A NO 20012285 A NO20012285 A NO 20012285A NO 20012285 L NO20012285 L NO 20012285L
- Authority
- NO
- Norway
- Prior art keywords
- melamine
- ammonia
- preparation
- aqueous solution
- water
- 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
Oppfinnelsen vedrører en fremgangsmåte til fremstilling av rent melamin. Ifølge denne fremgangsmåten avkjøles melaminsmelten som fremstilles fra urea ved en høytrykksprosess, og ammoniakk tilsettes inntil det når en temperatur på omtrent l til 50°C over smeltetemperaturen for melaminet som er avhengig av det respektive trykket for ammoniakk og quenches deretter enten med a) vann eller en vandig løsning eller suspensjon inneholdende ammoniakk og/eller melamin slik at melamin stivner - eller b) med kald flytende eller gassformig ammoniakk slik at melamin stivner, og deretter videre avkjøling av melaminet med vann eller en vandig løsning eller suspensjon inneholdende ammoniakk og/eller melamin og c) deretter isolering av melaminet.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AT189498 | 1998-11-13 | ||
PCT/EP1999/008462 WO2000029393A1 (de) | 1998-11-13 | 1999-11-05 | Verfahren zur herstellung von reinem melamin |
Publications (2)
Publication Number | Publication Date |
---|---|
NO20012285D0 NO20012285D0 (no) | 2001-05-09 |
NO20012285L true NO20012285L (no) | 2001-05-09 |
Family
ID=3523321
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NO20012285A NO20012285L (no) | 1998-11-13 | 2001-05-09 | Fremgangsmåte til fremstilling av rent melamin |
Country Status (22)
Country | Link |
---|---|
US (1) | US6790956B1 (no) |
EP (1) | EP1129080B1 (no) |
JP (1) | JP2002529539A (no) |
KR (1) | KR100643552B1 (no) |
CN (1) | CN1160342C (no) |
AR (1) | AR021254A1 (no) |
AT (1) | ATE247648T1 (no) |
AU (1) | AU767818B2 (no) |
BR (1) | BR9915040A (no) |
CA (1) | CA2350777A1 (no) |
CZ (1) | CZ20011625A3 (no) |
DE (1) | DE59906703D1 (no) |
EA (1) | EA003233B1 (no) |
EE (1) | EE200100262A (no) |
ES (1) | ES2209560T3 (no) |
HU (1) | HUP0104769A2 (no) |
NO (1) | NO20012285L (no) |
PL (1) | PL198432B1 (no) |
RO (1) | RO119717B1 (no) |
SK (1) | SK6192001A3 (no) |
TR (1) | TR200101341T2 (no) |
WO (1) | WO2000029393A1 (no) |
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. |
AT410795B (de) * | 2001-11-16 | 2003-07-25 | Agrolinz Melamin Gmbh | Verfahren zur herstellung von melemfreiem melamin |
CN1315812C (zh) | 2001-11-16 | 2007-05-16 | Ami-阿格罗林茨三聚氰胺有限公司 | 制备不含蜜勒胺的三聚氰胺的方法及骤冷器 |
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 |
WO2009080176A2 (en) * | 2007-12-20 | 2009-07-02 | Dsm Ip Assets B.V. | Process for the preparation of melamine |
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 |
CA3084310A1 (en) * | 2018-01-26 | 2019-08-01 | 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 RO ROA200100516A patent/RO119717B1/ro unknown
- 1999-11-05 SK SK619-2001A patent/SK6192001A3/sk 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 US US09/830,074 patent/US6790956B1/en not_active Expired - Lifetime
- 1999-11-05 TR TR2001/01341T patent/TR200101341T2/xx unknown
- 1999-11-05 EA EA200100537A patent/EA003233B1/ru not_active IP Right Cessation
- 1999-11-05 AT AT99972208T patent/ATE247648T1/de active
- 1999-11-05 BR BR9915040-9A patent/BR9915040A/pt not_active Application Discontinuation
- 1999-11-05 CA CA002350777A patent/CA2350777A1/en not_active Abandoned
- 1999-11-05 CZ CZ20011625A patent/CZ20011625A3/cs unknown
- 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 PL PL347724A patent/PL198432B1/pl unknown
- 1999-11-05 JP JP2000582380A patent/JP2002529539A/ja active Pending
- 1999-11-05 HU HU0104769A patent/HUP0104769A2/hu unknown
- 1999-11-05 KR KR1020017005952A patent/KR100643552B1/ko not_active IP Right Cessation
- 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 EE EEP200100262A patent/EE200100262A/xx unknown
- 1999-11-12 AR ARP990105761A patent/AR021254A1/es active IP Right Grant
-
2001
- 2001-05-09 NO NO20012285A patent/NO20012285L/no not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
DE59906703D1 (de) | 2003-09-25 |
ATE247648T1 (de) | 2003-09-15 |
HUP0104769A2 (hu) | 2002-03-28 |
EA003233B1 (ru) | 2003-02-27 |
JP2002529539A (ja) | 2002-09-10 |
EE200100262A (et) | 2002-08-15 |
EP1129080B1 (de) | 2003-08-20 |
US6790956B1 (en) | 2004-09-14 |
SK6192001A3 (en) | 2001-12-03 |
KR100643552B1 (ko) | 2006-11-10 |
CN1160342C (zh) | 2004-08-04 |
EA200100537A1 (ru) | 2001-12-24 |
EP1129080A1 (de) | 2001-09-05 |
CN1326448A (zh) | 2001-12-12 |
NO20012285D0 (no) | 2001-05-09 |
PL347724A1 (en) | 2002-04-22 |
ES2209560T3 (es) | 2004-06-16 |
BR9915040A (pt) | 2001-07-17 |
AU1160400A (en) | 2000-06-05 |
KR20010073230A (ko) | 2001-07-31 |
TR200101341T2 (tr) | 2001-11-21 |
PL198432B1 (pl) | 2008-06-30 |
AU767818B2 (en) | 2003-11-27 |
CZ20011625A3 (cs) | 2001-08-15 |
WO2000029393A1 (de) | 2000-05-25 |
CA2350777A1 (en) | 2000-05-25 |
AR021254A1 (es) | 2002-07-03 |
RO119717B1 (ro) | 2005-02-28 |
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Legal Events
Date | Code | Title | Description |
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FC2A | Withdrawal, rejection or dismissal of laid open patent application |