CA2306511C - Process for the preparation of melamine - Google Patents
Process for the preparation of melamine Download PDFInfo
- Publication number
- CA2306511C CA2306511C CA002306511A CA2306511A CA2306511C CA 2306511 C CA2306511 C CA 2306511C CA 002306511 A CA002306511 A CA 002306511A CA 2306511 A CA2306511 A CA 2306511A CA 2306511 C CA2306511 C CA 2306511C
- Authority
- CA
- Canada
- Prior art keywords
- melamine
- ammonia
- spray
- cooling vessel
- molten
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title claims abstract description 148
- 229920000877 Melamine resin Polymers 0.000 title claims abstract description 139
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000002360 preparation method Methods 0.000 title abstract description 11
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 183
- 238000001816 cooling Methods 0.000 claims abstract description 65
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 62
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims abstract description 31
- 239000004202 carbamide Substances 0.000 claims abstract description 31
- 238000002844 melting Methods 0.000 claims abstract description 6
- 230000008018 melting Effects 0.000 claims abstract description 6
- 239000007921 spray Substances 0.000 claims description 72
- 239000007788 liquid Substances 0.000 claims description 25
- 229910000069 nitrogen hydride Inorganic materials 0.000 claims description 13
- 238000002156 mixing Methods 0.000 claims description 11
- 239000007787 solid Substances 0.000 claims description 11
- 239000002826 coolant Substances 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 238000001704 evaporation Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 17
- 239000000047 product Substances 0.000 description 14
- 241000196324 Embryophyta Species 0.000 description 6
- 239000012535 impurity Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000007795 chemical reaction product Substances 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- YSRVJVDFHZYRPA-UHFFFAOYSA-N melem Chemical compound NC1=NC(N23)=NC(N)=NC2=NC(N)=NC3=N1 YSRVJVDFHZYRPA-UHFFFAOYSA-N 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- YSKUZVBSHIWEFK-UHFFFAOYSA-N ammelide Chemical compound NC1=NC(O)=NC(O)=N1 YSKUZVBSHIWEFK-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 2
- 239000000155 melt Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000007858 starting material Substances 0.000 description 2
- 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 1
- 241000219112 Cucumis Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 230000003466 anti-cipated effect Effects 0.000 description 1
- 239000003054 catalyst Substances 0.000 description 1
- 239000007859 condensation product Substances 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 206010016256 fatigue Diseases 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 150000007974 melamines Chemical class 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000000197 pyrolysis Methods 0.000 description 1
- 238000007712 rapid solidification Methods 0.000 description 1
- 230000009257 reactivity Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
- B01J2/02—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic by dividing the liquid material into drops, e.g. by spraying, and solidifying the drops
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Fertilizers (AREA)
- Nozzles (AREA)
- Cosmetics (AREA)
- Preparation Of Compounds By Using Micro-Organisms (AREA)
- Chemical And Physical Treatments For Wood And The Like (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US6257497P | 1997-10-15 | 1997-10-15 | |
| US60/062,574 | 1997-10-15 | ||
| PCT/NL1998/000583 WO1999019310A1 (en) | 1997-10-15 | 1998-10-12 | Process for the preparation of melamine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2306511A1 CA2306511A1 (en) | 1999-04-22 |
| CA2306511C true CA2306511C (en) | 2008-06-03 |
Family
ID=22043373
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA002306511A Expired - Fee Related CA2306511C (en) | 1997-10-15 | 1998-10-12 | Process for the preparation of melamine |
Country Status (16)
| Country | Link |
|---|---|
| US (1) | US6262261B1 (enExample) |
| EP (1) | EP1025093B1 (enExample) |
| JP (1) | JP2001519419A (enExample) |
| KR (1) | KR100539150B1 (enExample) |
| CN (1) | CN1122027C (enExample) |
| AT (1) | ATE264848T1 (enExample) |
| AU (1) | AU738254B2 (enExample) |
| CA (1) | CA2306511C (enExample) |
| DE (1) | DE69823380T2 (enExample) |
| ES (1) | ES2219913T3 (enExample) |
| ID (1) | ID24074A (enExample) |
| NO (1) | NO321902B1 (enExample) |
| PL (1) | PL195926B1 (enExample) |
| SA (1) | SA98190737B1 (enExample) |
| TW (1) | TWI221472B (enExample) |
| WO (1) | WO1999019310A1 (enExample) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6380385B1 (en) | 1995-12-07 | 2002-04-30 | Agrolinz Melanin Gmbh | Process for the preparation of pure melamine |
| US7390415B2 (en) * | 2002-07-22 | 2008-06-24 | Cytec Technology Corp. | Method and compositions for preventing or reducing aluminosilicate scale in alkaline industrial processes |
| US6814873B2 (en) * | 2002-07-22 | 2004-11-09 | Cytec Technology Corp. | Method of preventing or reducing aluminosilicate scale in a bayer process |
| AU2008201441B2 (en) * | 2002-07-22 | 2010-08-12 | Cytec Technology Corp. | Method of preventing or reducing aluminosilicate scale in a Bayer process |
| CA2701136C (en) * | 2007-11-30 | 2013-01-08 | Her Majesty The Queen In Right Of Canada As Represented By The Minister Of Natural Resources Canada | Vapour phase esterification of free fatty acids |
| 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 |
| CN108530369B (zh) * | 2018-04-25 | 2020-01-31 | 中国工程物理研究院化工材料研究所 | 一种1,3,5-三嗪-2,4,6-三胺的合成方法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3446877A (en) * | 1967-04-28 | 1969-05-27 | Lummus Co | Process for producing prills |
| US3689607A (en) * | 1970-10-26 | 1972-09-05 | Union Oil Co | Urea prilling |
| US4171091A (en) * | 1976-03-26 | 1979-10-16 | Stamicarbon, B.V. | Process and device for spraying liquid |
| NL8001874A (nl) * | 1980-03-29 | 1981-11-02 | Stamicarbon | Inrichting voor het versproeien van een vloeistof met behulp van een gas. |
| 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 |
| EP0986547A1 (en) * | 1997-06-02 | 2000-03-22 | Dsm N.V. | Method for preparing melamine |
-
1998
- 1998-10-07 TW TW087116618A patent/TWI221472B/zh not_active IP Right Cessation
- 1998-10-12 JP JP2000515883A patent/JP2001519419A/ja active Pending
- 1998-10-12 WO PCT/NL1998/000583 patent/WO1999019310A1/en not_active Ceased
- 1998-10-12 CN CN98810065A patent/CN1122027C/zh not_active Expired - Fee Related
- 1998-10-12 AU AU96525/98A patent/AU738254B2/en not_active Ceased
- 1998-10-12 AT AT98950508T patent/ATE264848T1/de active
- 1998-10-12 PL PL98339924A patent/PL195926B1/pl not_active IP Right Cessation
- 1998-10-12 ES ES98950508T patent/ES2219913T3/es not_active Expired - Lifetime
- 1998-10-12 EP EP98950508A patent/EP1025093B1/en not_active Expired - Lifetime
- 1998-10-12 ID IDW20000688A patent/ID24074A/id unknown
- 1998-10-12 CA CA002306511A patent/CA2306511C/en not_active Expired - Fee Related
- 1998-10-12 KR KR10-2000-7003902A patent/KR100539150B1/ko not_active Expired - Fee Related
- 1998-10-12 DE DE69823380T patent/DE69823380T2/de not_active Expired - Lifetime
- 1998-11-09 SA SA98190737A patent/SA98190737B1/ar unknown
-
2000
- 2000-04-07 US US09/545,677 patent/US6262261B1/en not_active Expired - Fee Related
- 2000-04-14 NO NO20001961A patent/NO321902B1/no not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| KR100539150B1 (ko) | 2005-12-26 |
| ES2219913T3 (es) | 2004-12-01 |
| PL195926B1 (pl) | 2007-11-30 |
| TWI221472B (en) | 2004-10-01 |
| NO20001961L (no) | 2000-06-05 |
| EP1025093A1 (en) | 2000-08-09 |
| NO20001961D0 (no) | 2000-04-14 |
| CN1122027C (zh) | 2003-09-24 |
| US6262261B1 (en) | 2001-07-17 |
| DE69823380D1 (de) | 2004-05-27 |
| WO1999019310A1 (en) | 1999-04-22 |
| CN1275125A (zh) | 2000-11-29 |
| JP2001519419A (ja) | 2001-10-23 |
| AU738254B2 (en) | 2001-09-13 |
| ID24074A (id) | 2000-07-06 |
| EP1025093B1 (en) | 2004-04-21 |
| ATE264848T1 (de) | 2004-05-15 |
| DE69823380T2 (de) | 2005-05-04 |
| CA2306511A1 (en) | 1999-04-22 |
| KR20010015739A (ko) | 2001-02-26 |
| AU9652598A (en) | 1999-05-03 |
| NO321902B1 (no) | 2006-07-17 |
| SA98190737B1 (ar) | 2006-06-24 |
| PL339924A1 (en) | 2001-01-15 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EEER | Examination request | ||
| MKLA | Lapsed |