HRP960575A2 - Process for producing pure melamine - Google Patents
Process for producing pure melamine Download PDFInfo
- Publication number
- HRP960575A2 HRP960575A2 HRA1994/95A HRP960575A HRP960575A2 HR P960575 A2 HRP960575 A2 HR P960575A2 HR P960575 A HRP960575 A HR P960575A HR P960575 A2 HRP960575 A2 HR P960575A2
- Authority
- HR
- Croatia
- Prior art keywords
- melamine
- ammonia
- temperature
- partial pressure
- bar
- Prior art date
Links
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title claims description 113
- 229920000877 Melamine resin Polymers 0.000 title claims description 111
- 238000000034 method Methods 0.000 title claims description 47
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 132
- 229910021529 ammonia Inorganic materials 0.000 claims description 57
- 239000007788 liquid Substances 0.000 claims description 30
- 238000007711 solidification Methods 0.000 claims description 25
- 230000008023 solidification Effects 0.000 claims description 25
- 238000001816 cooling Methods 0.000 claims description 17
- 239000007787 solid Substances 0.000 claims description 15
- 239000000126 substance Substances 0.000 claims description 9
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 7
- 239000004202 carbamide Substances 0.000 claims description 7
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 claims description 6
- 229920006395 saturated elastomer Polymers 0.000 claims description 3
- 238000010583 slow cooling Methods 0.000 claims 1
- 239000002674 ointment Substances 0.000 description 9
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 8
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 8
- 238000004140 cleaning Methods 0.000 description 5
- 230000014759 maintenance of location Effects 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 239000000155 melt Substances 0.000 description 4
- YZEZMSPGIPTEBA-UHFFFAOYSA-N 2-n-(4,6-diamino-1,3,5-triazin-2-yl)-1,3,5-triazine-2,4,6-triamine Chemical compound NC1=NC(N)=NC(NC=2N=C(N)N=C(N)N=2)=N1 YZEZMSPGIPTEBA-UHFFFAOYSA-N 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 240000000278 Syzygium polyanthum Species 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 239000007791 liquid phase Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000002156 mixing Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 239000011541 reaction mixture Substances 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 101000797621 Rattus norvegicus Ameloblastin Proteins 0.000 description 1
- JHEXGENUDVZLKI-UHFFFAOYSA-N [(4,6-diamino-1,3,5-triazin-2-yl)amino]urea Chemical compound NC(=O)NNC1=NC(N)=NC(N)=N1 JHEXGENUDVZLKI-UHFFFAOYSA-N 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 238000010924 continuous production Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 239000012265 solid product Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 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)
- Processes Of Treating Macromolecular Substances (AREA)
- Sorption Type Refrigeration Machines (AREA)
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 |
|---|---|
| HRP960575A2 true HRP960575A2 (en) | 1997-12-31 |
Family
ID=3525542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HRA1994/95A HRP960575A2 (en) | 1995-12-07 | 1996-12-05 | Process for producing pure melamine |
Country Status (29)
| Country | Link |
|---|---|
| EP (1) | EP0874832B1 (pl) |
| JP (1) | JP2000501404A (pl) |
| KR (1) | KR100462920B1 (pl) |
| CN (1) | CN1067995C (pl) |
| AR (1) | AR004873A1 (pl) |
| AT (2) | AT403579B (pl) |
| AU (1) | AU709030B2 (pl) |
| BG (1) | BG102504A (pl) |
| BR (1) | BR9611892A (pl) |
| CA (1) | CA2239542A1 (pl) |
| CO (1) | CO4770995A1 (pl) |
| DE (1) | DE59609075D1 (pl) |
| DZ (1) | DZ2135A1 (pl) |
| EA (1) | EA000931B1 (pl) |
| EG (1) | EG20917A (pl) |
| HR (1) | HRP960575A2 (pl) |
| HU (1) | HUP9904406A3 (pl) |
| IL (1) | IL124630A0 (pl) |
| MX (1) | MX9804435A (pl) |
| MY (1) | MY112761A (pl) |
| NO (1) | NO309982B1 (pl) |
| NZ (1) | NZ324297A (pl) |
| PL (1) | PL189811B1 (pl) |
| SK (1) | SK74998A3 (pl) |
| TR (1) | TR199801029T2 (pl) |
| TW (1) | TW341567B (pl) |
| UA (1) | UA46072C2 (pl) |
| WO (1) | WO1997020826A1 (pl) |
| ZA (1) | ZA9610295B (pl) |
Families Citing this family (23)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL1006095C2 (nl) * | 1997-05-21 | 1998-11-25 | Dsm Nv | Werkwijze voor het bereiden van melamine. |
| AU728549B2 (en) | 1997-05-21 | 2001-01-11 | Dsm Ip Assets B.V. | Method for preparing melamine |
| JP2002500664A (ja) * | 1997-05-28 | 2002-01-08 | ディーエスエム エヌ．ブイ． | メラミンの製造法 |
| NL1006147C2 (nl) * | 1997-05-28 | 1998-12-01 | Dsm Nv | Werkwijze voor het bereiden van melamine. |
| AU731077B2 (en) * | 1997-06-02 | 2001-03-22 | Dsm Ip Assets B.V. | Crystalline melamine |
| CA2292597A1 (en) * | 1997-06-02 | 1998-12-10 | Dsm N.V. | Method for preparing melamine |
| NL1006192C2 (nl) | 1997-06-02 | 1998-12-03 | Dsm Nv | Werkwijze voor het bereiden van melamine. |
| NL1006191C2 (nl) * | 1997-06-02 | 1998-12-03 | Dsm Nv | Kristallijn melamine. |
| NL1008571C2 (nl) * | 1998-03-12 | 1999-07-28 | Dsm Nv | Kristallijn melamine. |
| ES2209560T3 (es) * | 1998-11-13 | 2004-06-16 | Ami Agrolinz Melamine International Gmbh | Procedimiento para la obtencion de melamina pura. |
| 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 |
| DE50010873D1 (de) | 1999-03-15 | 2005-09-08 | Ami Agrolinz Melamine Int Gmbh | Verfahren zur herstellung von festem melamin |
| PL353098A1 (pl) * | 1999-07-27 | 2003-10-20 | Agrolinz Melamin Gmbh | Sposób wytwarzania stałej melaminy |
| 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 |
| US7176309B2 (en) | 2001-11-16 | 2007-02-13 | Ami - Agrolinz Melamine International Gmbh | Method for producing melem-free melamine and quenching agents |
| 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 |
| DE3546893C3 (de) * | 1984-01-05 | 1998-01-29 | Melamine Chemicals Inc | Wasserfreie Hochdruck-Melamin-Synthese |
| 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 |
| 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 AT AT96942322T patent/ATE215936T1/de not_active IP Right Cessation
- 1996-12-04 EA EA199800532A patent/EA000931B1/ru not_active IP Right Cessation
- 1996-12-04 AU AU11755/97A patent/AU709030B2/en not_active Ceased
- 1996-12-04 DE DE59609075T patent/DE59609075D1/de not_active Expired - Lifetime
- 1996-12-04 KR KR10-1998-0704219A patent/KR100462920B1/ko not_active Expired - Fee Related
- 1996-12-04 TR TR1998/01029T patent/TR199801029T2/xx unknown
- 1996-12-04 JP JP9520981A patent/JP2000501404A/ja active Pending
- 1996-12-04 WO PCT/EP1996/005389 patent/WO1997020826A1/de not_active Ceased
- 1996-12-04 EP EP96942322A patent/EP0874832B1/de not_active Expired - Lifetime
- 1996-12-04 NZ NZ324297A patent/NZ324297A/xx unknown
- 1996-12-04 SK SK749-98A patent/SK74998A3/sk unknown
- 1996-12-04 UA UA98063040A patent/UA46072C2/uk unknown
- 1996-12-04 DZ DZ960180A patent/DZ2135A1/fr active
- 1996-12-04 HU HU9904406A patent/HUP9904406A3/hu unknown
- 1996-12-04 BR BR9611892A patent/BR9611892A/pt active Search and Examination
- 1996-12-04 CN CN96198818A patent/CN1067995C/zh not_active Expired - Fee Related
- 1996-12-04 CA CA002239542A patent/CA2239542A1/en not_active Abandoned
- 1996-12-04 PL PL96327067A patent/PL189811B1/pl not_active IP Right Cessation
- 1996-12-04 MY MYPI96005088A patent/MY112761A/en unknown
- 1996-12-04 IL IL12463096A patent/IL124630A0/xx unknown
- 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 |
|---|---|---|---|
| A1OB | Publication of a patent application | ||
| AIPI | Request for the grant of a patent on the basis of a substantive examination of a patent application | ||
| ODBC | Application rejected |