NO323864B1 - Fremgangsmate ved fremstilling av melamin fra urea - Google Patents
Fremgangsmate ved fremstilling av melamin fra urea Download PDFInfo
- Publication number
- NO323864B1 NO323864B1 NO20023621A NO20023621A NO323864B1 NO 323864 B1 NO323864 B1 NO 323864B1 NO 20023621 A NO20023621 A NO 20023621A NO 20023621 A NO20023621 A NO 20023621A NO 323864 B1 NO323864 B1 NO 323864B1
- Authority
- NO
- Norway
- Prior art keywords
- melamine
- scrubbing section
- cooling
- temperature
- liquid
- Prior art date
Links
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 title claims abstract description 35
- 229920000877 Melamine resin Polymers 0.000 title claims abstract description 34
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 239000004202 carbamide Substances 0.000 title claims abstract description 21
- 238000000034 method Methods 0.000 title claims description 25
- 238000001816 cooling Methods 0.000 claims abstract description 30
- 238000005201 scrubbing Methods 0.000 claims abstract description 26
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 239000002826 coolant Substances 0.000 claims abstract description 14
- 239000003054 catalyst Substances 0.000 claims abstract description 6
- 238000004519 manufacturing process Methods 0.000 claims abstract description 6
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 35
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 26
- 229910001868 water Inorganic materials 0.000 description 26
- KXDHJXZQYSOELW-UHFFFAOYSA-M Carbamate Chemical compound NC([O-])=O KXDHJXZQYSOELW-UHFFFAOYSA-M 0.000 description 23
- 239000000243 solution Substances 0.000 description 23
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 18
- 238000010521 absorption reaction Methods 0.000 description 16
- 229910021529 ammonia Inorganic materials 0.000 description 14
- 229910002092 carbon dioxide Inorganic materials 0.000 description 11
- 239000007789 gas Substances 0.000 description 11
- 239000001569 carbon dioxide Substances 0.000 description 9
- 239000012452 mother liquor Substances 0.000 description 6
- 239000000047 product Substances 0.000 description 5
- 238000000746 purification Methods 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 3
- 239000000498 cooling water Substances 0.000 description 3
- VUZPPFZMUPKLLV-UHFFFAOYSA-N methane;hydrate Chemical compound C.O VUZPPFZMUPKLLV-UHFFFAOYSA-N 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 239000006227 byproduct Substances 0.000 description 1
- 150000004657 carbamic acid derivatives Chemical class 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 150000003839 salts Chemical class 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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Phenolic Resins Or Amino Resins (AREA)
- Catalysts (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL1014280A NL1014280C2 (nl) | 2000-02-03 | 2000-02-03 | Werkwijze voor de bereiding van melamine uit ureum. |
| PCT/NL2001/000047 WO2001057000A1 (en) | 2000-02-03 | 2001-01-24 | Process for preparing melamine from urea |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| NO20023621D0 NO20023621D0 (no) | 2002-07-30 |
| NO20023621L NO20023621L (no) | 2002-07-30 |
| NO323864B1 true NO323864B1 (no) | 2007-07-16 |
Family
ID=19770741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NO20023621A NO323864B1 (no) | 2000-02-03 | 2002-07-30 | Fremgangsmate ved fremstilling av melamin fra urea |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US6617455B2 (de) |
| EP (1) | EP1252149B1 (de) |
| JP (1) | JP2003521540A (de) |
| KR (1) | KR100703548B1 (de) |
| CN (1) | CN1187344C (de) |
| AT (1) | ATE296813T1 (de) |
| AU (2) | AU2001234240B2 (de) |
| CA (1) | CA2398989A1 (de) |
| DE (1) | DE60111185T2 (de) |
| EA (1) | EA005130B1 (de) |
| ES (1) | ES2241790T3 (de) |
| MX (1) | MXPA02007550A (de) |
| NL (1) | NL1014280C2 (de) |
| NO (1) | NO323864B1 (de) |
| PL (1) | PL356323A1 (de) |
| RO (1) | RO121776B1 (de) |
| TW (1) | TW555750B (de) |
| WO (1) | WO2001057000A1 (de) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2386536A1 (de) * | 2010-05-11 | 2011-11-16 | Lonza Ltd. | Prozess zur Hydrogenierung von Ketoestern |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL8204979A (nl) * | 1982-12-24 | 1984-07-16 | Unie Van Kunstmestfab Bv | Werkwijze voor het bepalen en regelen van de samenstelling van waterige oplossingen van nh3 en co2. |
| US5384404A (en) * | 1993-11-05 | 1995-01-24 | Lee; Jing M. | Process for manufacturing melamine from urea |
| TW385307B (en) * | 1996-08-30 | 2000-03-21 | Dsm Nv | Process for the preparation of urea |
| JP3987607B2 (ja) * | 1996-10-07 | 2007-10-10 | 東洋エンジニアリング株式会社 | 改良された尿素合成方法および装置 |
| NL1005118C2 (nl) * | 1997-01-29 | 1998-07-30 | Dsm Nv | Werkwijze voor de bereiding van ureum. |
-
2000
- 2000-02-03 NL NL1014280A patent/NL1014280C2/nl not_active IP Right Cessation
-
2001
- 2001-01-24 AU AU2001234240A patent/AU2001234240B2/en not_active Ceased
- 2001-01-24 EA EA200200829A patent/EA005130B1/ru not_active IP Right Cessation
- 2001-01-24 PL PL01356323A patent/PL356323A1/xx unknown
- 2001-01-24 KR KR1020027009907A patent/KR100703548B1/ko not_active IP Right Cessation
- 2001-01-24 DE DE60111185T patent/DE60111185T2/de not_active Expired - Fee Related
- 2001-01-24 MX MXPA02007550A patent/MXPA02007550A/es active IP Right Grant
- 2001-01-24 AU AU3424001A patent/AU3424001A/xx active Pending
- 2001-01-24 AT AT01906412T patent/ATE296813T1/de not_active IP Right Cessation
- 2001-01-24 RO ROA200201069A patent/RO121776B1/ro unknown
- 2001-01-24 EP EP01906412A patent/EP1252149B1/de not_active Expired - Lifetime
- 2001-01-24 CN CNB018044344A patent/CN1187344C/zh not_active Expired - Fee Related
- 2001-01-24 CA CA002398989A patent/CA2398989A1/en not_active Abandoned
- 2001-01-24 ES ES01906412T patent/ES2241790T3/es not_active Expired - Lifetime
- 2001-01-24 JP JP2001556850A patent/JP2003521540A/ja not_active Ceased
- 2001-01-24 WO PCT/NL2001/000047 patent/WO2001057000A1/en active IP Right Grant
- 2001-01-29 TW TW090101682A patent/TW555750B/zh not_active IP Right Cessation
-
2002
- 2002-07-30 NO NO20023621A patent/NO323864B1/no not_active IP Right Cessation
- 2002-08-02 US US10/210,876 patent/US6617455B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| AU3424001A (en) | 2001-08-14 |
| TW555750B (en) | 2003-10-01 |
| JP2003521540A (ja) | 2003-07-15 |
| ATE296813T1 (de) | 2005-06-15 |
| DE60111185D1 (de) | 2005-07-07 |
| EP1252149B1 (de) | 2005-06-01 |
| EA005130B1 (ru) | 2004-12-30 |
| DE60111185T2 (de) | 2006-03-23 |
| ES2241790T3 (es) | 2005-11-01 |
| CN1187344C (zh) | 2005-02-02 |
| CA2398989A1 (en) | 2001-08-09 |
| KR100703548B1 (ko) | 2007-04-03 |
| KR20020073572A (ko) | 2002-09-27 |
| US6617455B2 (en) | 2003-09-09 |
| WO2001057000A1 (en) | 2001-08-09 |
| US20030040624A1 (en) | 2003-02-27 |
| EP1252149A1 (de) | 2002-10-30 |
| AU2001234240B2 (en) | 2005-04-21 |
| NO20023621D0 (no) | 2002-07-30 |
| NO20023621L (no) | 2002-07-30 |
| CN1396914A (zh) | 2003-02-12 |
| RO121776B1 (ro) | 2008-04-30 |
| MXPA02007550A (es) | 2002-12-13 |
| NL1014280C2 (nl) | 2001-08-06 |
| PL356323A1 (en) | 2004-06-28 |
| EA200200829A1 (ru) | 2003-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| NO312291B1 (no) | Fremgangsmåte ved fremstilling av urea, et ureastrippeanlegg for fremstilling av urea og et apparat for syntese av urea ogmelamin | |
| EA035936B1 (ru) | Способ получения мочевины и установка для получения мочевины | |
| CA2312763C (en) | Process for the preparation of urea | |
| NO323867B1 (no) | Fremgangsmate ved fremstilling av melamin fra urea | |
| CA2336042A1 (en) | Process for the preparation of urea | |
| NO323864B1 (no) | Fremgangsmate ved fremstilling av melamin fra urea | |
| CA2473224C (en) | Process for the preparation of urea | |
| EP1504045A1 (de) | Verfahren zur hestellung von melamin aus harnstoff und insbesondere zum erhalt von melaminfreiem abgas im ersten trennschritt | |
| AU2001234239A1 (en) | Process for preparing melamine from urea | |
| AU2001234240A1 (en) | Process for preparing melamine from urea | |
| CA2595866C (en) | Process for the preparation of melamine | |
| WO2024112196A1 (en) | Coupled urea melamine plant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MM1K | Lapsed by not paying the annual fees |