AR004873A1 - Procedimiento para la elaboración de melamina pura. - Google Patents
Procedimiento para la elaboración de melamina pura.Info
- Publication number
- AR004873A1 AR004873A1 ARP960105520A ARP960105520A AR004873A1 AR 004873 A1 AR004873 A1 AR 004873A1 AR P960105520 A ARP960105520 A AR P960105520A AR P960105520 A ARP960105520 A AR P960105520A AR 004873 A1 AR004873 A1 AR 004873A1
- Authority
- AR
- Argentina
- Prior art keywords
- melamine
- ammonia
- pure
- partial pressure
- bar
- 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
- 238000000034 method Methods 0.000 title abstract 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 abstract 8
- 229910021529 ammonia Inorganic materials 0.000 abstract 4
- 238000007711 solidification Methods 0.000 abstract 2
- 230000008023 solidification Effects 0.000 abstract 2
- 238000001816 cooling Methods 0.000 abstract 1
- 239000007788 liquid Substances 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
- 239000007787 solid Substances 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)
- Sorption Type Refrigeration Machines (AREA)
- Processes Of Treating Macromolecular Substances (AREA)
Abstract
Un procedimiento para la elaboración de malamina pura, en el que la melamina líquida que contiene amoníaco, que está a una temperatura de 0 a 60°Cpor encima por encima de la que se corresponde con la presión parcial de amoníacoexisten te en el punto de solidificación de la melamina, con lo que lasmayores presiones permiten una separación de las temperaturas del punto de solidificación de la melamina que las bajas presiones, se descomprimerápidamente de una presiónparcial de amoníaco p1 de 400 - 50 bar a una presión parcial de amoníaco p2 de 200 bar -presión atmosférica, donde p1 es siempremayor que p2, con lo que se separa melamina pura en forma sólida, luego de la cual se procede, arbitrariamente , en csonecesario, a seguir descomprimiendohasta la presión atmosférica, a seguir enfriando hasta la temperatua ambiente, y a aislar la melamina pura.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT0199495A AT403579B (de) | 1995-12-07 | 1995-12-07 | Verfahren zur herstellung von hochreinem melamin |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| AR004873A1 true AR004873A1 (es) | 1999-03-10 |
Family
ID=3525542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ARP960105520A AR004873A1 (es) | 1995-12-07 | 1996-12-06 | Procedimiento para la elaboración de melamina pura. |
Country Status (29)
| Country | Link |
|---|---|
| EP (1) | EP0874832B1 (es) |
| JP (1) | JP2000501404A (es) |
| KR (1) | KR100462920B1 (es) |
| CN (1) | CN1067995C (es) |
| AR (1) | AR004873A1 (es) |
| AT (2) | AT403579B (es) |
| AU (1) | AU709030B2 (es) |
| BG (1) | BG102504A (es) |
| BR (1) | BR9611892A (es) |
| CA (1) | CA2239542A1 (es) |
| CO (1) | CO4770995A1 (es) |
| DE (1) | DE59609075D1 (es) |
| DZ (1) | DZ2135A1 (es) |
| EA (1) | EA000931B1 (es) |
| EG (1) | EG20917A (es) |
| HR (1) | HRP960575A2 (es) |
| HU (1) | HUP9904406A3 (es) |
| IL (1) | IL124630A0 (es) |
| MX (1) | MX9804435A (es) |
| MY (1) | MY112761A (es) |
| NO (1) | NO309982B1 (es) |
| NZ (1) | NZ324297A (es) |
| PL (1) | PL189811B1 (es) |
| SK (1) | SK74998A3 (es) |
| TR (1) | TR199801029T2 (es) |
| TW (1) | TW341567B (es) |
| UA (1) | UA46072C2 (es) |
| WO (1) | WO1997020826A1 (es) |
| ZA (1) | ZA9610295B (es) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ID22917A (id) | 1997-05-21 | 1999-12-16 | Dsm Nv | Metode bagi pembuatan melamina |
| NL1006095C2 (nl) * | 1997-05-21 | 1998-11-25 | Dsm Nv | Werkwijze voor het bereiden van melamine. |
| NL1006147C2 (nl) * | 1997-05-28 | 1998-12-01 | Dsm Nv | Werkwijze voor het bereiden van melamine. |
| EP0984946B1 (en) | 1997-05-28 | 2003-03-19 | Dsm N.V. | Method for preparing melamine |
| NL1006192C2 (nl) * | 1997-06-02 | 1998-12-03 | Dsm Nv | Werkwijze voor het bereiden van melamine. |
| ID24238A (id) * | 1997-06-02 | 2000-07-13 | Dsm Nv | Melamin kristal |
| NL1006191C2 (nl) * | 1997-06-02 | 1998-12-03 | Dsm Nv | Kristallijn melamine. |
| CN1265100A (zh) * | 1997-06-02 | 2000-08-30 | Dsm有限公司 | 制备蜜胺的方法 |
| NL1008571C2 (nl) * | 1998-03-12 | 1999-07-28 | Dsm Nv | Kristallijn melamine. |
| EP1129080B1 (de) * | 1998-11-13 | 2003-08-20 | Agrolinz Melamin GmbH | Verfahren zur herstellung von reinem melamin |
| CZ20012301A3 (cs) | 1998-12-23 | 2002-03-13 | Agrolinz Melamin Gmbh | Způsob čiątění melaminu |
| EP1035117A1 (en) * | 1999-03-08 | 2000-09-13 | Dsm N.V. | Method for preparing melamine from urea |
| KR20020000220A (ko) * | 1999-03-15 | 2002-01-05 | 갈러 롤란트, 가이쓸러 디트프리트 | 고체 멜라민의 제조방법 |
| AU6697600A (en) * | 1999-07-27 | 2001-02-13 | Agrolinz Melamin Gmbh | Method for producing solid melamine |
| NL1013217C2 (nl) * | 1999-10-05 | 2001-04-06 | Dsm Nv | Werkwijze voor de bereiding van melamine. |
| EP1138676A1 (en) * | 2000-03-27 | 2001-10-04 | Casale Chemicals SA | Process for producing melamine at high pureness |
| AT410210B (de) * | 2000-08-07 | 2003-03-25 | Agrolinz Melamin Gmbh | Verfahren zur herstellung von melamin |
| AT500297B8 (de) * | 2000-11-08 | 2007-02-15 | Agrolinz Melamin Gmbh | Verfahren zur reinigung von melaminhältigen ammoniak |
| AT410793B (de) * | 2000-12-27 | 2003-07-25 | Agrolinz Melamin Gmbh | Verfahren zur herstellung von melamin |
| PL209035B1 (pl) | 2001-11-16 | 2011-07-29 | Ami Agrolinz Melamine Int Gmbh | Sposób wytwarzania melaminy pozbawionej melemu oraz bezprzeponowa chłodnica do stosowania tego sposobu |
| AT411462B (de) * | 2001-12-12 | 2004-01-26 | Agrolinz Melamin Gmbh | Verfahren zur reinigung einer melaminschmelze |
| FR2843964B1 (fr) * | 2002-08-29 | 2004-10-01 | Sanofi Synthelabo | Derives de dioxane-2-alkylcarbamates, leur preparation et leur application en therapeutique |
| RU2417992C2 (ru) * | 2009-07-20 | 2011-05-10 | Открытое акционерное общество "Научно-исследовательский и проектный институт карбамида и продуктов органического синтеза" (ОАО "НИИК") | Способ получения меламина и способ удаления растворенных газов из водного раствора неочищенного меламина |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3116294A (en) * | 1963-12-31 | Process- for preparing high-purity melamine from urea | ||
| US3637686A (en) * | 1969-02-10 | 1972-01-25 | Nissan Chemical Ind Ltd | Process for recovering purified melamine |
| DE3500188C2 (de) * | 1984-01-05 | 1994-08-18 | Melamine Chemicals Inc | Wasserfreie Hochdruck-Melamin-Synthese |
| US4565867A (en) * | 1984-01-05 | 1986-01-21 | Melamine Chemicals, Inc. | Anhydrous high-pressure melamine synthesis |
| DE3546893C3 (de) * | 1984-01-05 | 1998-01-29 | Melamine Chemicals Inc | Wasserfreie Hochdruck-Melamin-Synthese |
| 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 |
| US5514796A (en) * | 1995-06-07 | 1996-05-07 | Melamine Chemicals, Inc. | Melamine of improved purity produced by high-pressure, non-catalytic process |
| US5514797A (en) * | 1995-06-07 | 1996-05-07 | Melamine Chemicals, Inc. | Method for increasing purity of melamine |
-
1995
- 1995-12-07 AT AT0199495A patent/AT403579B/de active
-
1996
- 1996-12-02 TW TW085114862A patent/TW341567B/zh active
- 1996-12-03 EG EG106896A patent/EG20917A/xx active
- 1996-12-04 EA EA199800532A patent/EA000931B1/ru not_active IP Right Cessation
- 1996-12-04 SK SK749-98A patent/SK74998A3/sk unknown
- 1996-12-04 TR TR1998/01029T patent/TR199801029T2/xx unknown
- 1996-12-04 KR KR10-1998-0704219A patent/KR100462920B1/ko not_active Expired - Fee Related
- 1996-12-04 AT AT96942322T patent/ATE215936T1/de not_active IP Right Cessation
- 1996-12-04 WO PCT/EP1996/005389 patent/WO1997020826A1/de not_active Ceased
- 1996-12-04 AU AU11755/97A patent/AU709030B2/en not_active Ceased
- 1996-12-04 NZ NZ324297A patent/NZ324297A/xx unknown
- 1996-12-04 MY MYPI96005088A patent/MY112761A/en unknown
- 1996-12-04 EP EP96942322A patent/EP0874832B1/de not_active Expired - Lifetime
- 1996-12-04 CA CA002239542A patent/CA2239542A1/en not_active Abandoned
- 1996-12-04 DE DE59609075T patent/DE59609075D1/de not_active Expired - Lifetime
- 1996-12-04 PL PL96327067A patent/PL189811B1/pl not_active IP Right Cessation
- 1996-12-04 DZ DZ960180A patent/DZ2135A1/fr active
- 1996-12-04 HU HU9904406A patent/HUP9904406A3/hu unknown
- 1996-12-04 IL IL12463096A patent/IL124630A0/xx unknown
- 1996-12-04 CN CN96198818A patent/CN1067995C/zh not_active Expired - Fee Related
- 1996-12-04 JP JP9520981A patent/JP2000501404A/ja active Pending
- 1996-12-04 UA UA98063040A patent/UA46072C2/uk unknown
- 1996-12-04 BR BR9611892A patent/BR9611892A/pt active Search and Examination
- 1996-12-05 HR HRA1994/95A patent/HRP960575A2/hr not_active Application Discontinuation
- 1996-12-05 CO CO96063884A patent/CO4770995A1/es unknown
- 1996-12-06 ZA ZA9610295A patent/ZA9610295B/xx unknown
- 1996-12-06 AR ARP960105520A patent/AR004873A1/es active IP Right Grant
-
1998
- 1998-05-15 NO NO982251A patent/NO309982B1/no not_active IP Right Cessation
- 1998-06-02 BG BG102504A patent/BG102504A/xx unknown
- 1998-06-04 MX MX9804435A patent/MX9804435A/es unknown
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FG | Grant, registration |