EA200100537A1 - Способ получения чистого меламина - Google Patents

Способ получения чистого меламина

Info

Publication number
EA200100537A1
EA200100537A1 EA200100537A EA200100537A EA200100537A1 EA 200100537 A1 EA200100537 A1 EA 200100537A1 EA 200100537 A EA200100537 A EA 200100537A EA 200100537 A EA200100537 A EA 200100537A EA 200100537 A1 EA200100537 A1 EA 200100537A1
Authority
EA
Eurasian Patent Office
Prior art keywords
melamine
ammonia
water
cooled
suspension
Prior art date
Application number
EA200100537A
Other languages
English (en)
Other versions
EA003233B1 (ru
Inventor
Герхард Коуфаль
Original Assignee
Агролинц Меламин Гмбх
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Агролинц Меламин Гмбх filed Critical Агролинц Меламин Гмбх
Publication of EA200100537A1 publication Critical patent/EA200100537A1/ru
Publication of EA003233B1 publication Critical patent/EA003233B1/ru

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

Предлагается способ получения чистого меламина, при котором получаемый из мочевины в результате осуществляемого при высоком давлении процесса расплав меламина охлаждают при подводе аммиака до температуры, которая примерно на 1-50°C выше зависимой от соответствующего давления аммиака температуры плавления меламина, после чего: a) либо резко охлаждают водой или водным, содержащим аммиак и/или меламин раствором или суспензией и меламин отверждается; b) либо подвергают резкому охлаждению с помощью холодного жидкого или газообразного аммиака, причем отверждается меламин, который затем во второй стадии охлаждают дальше с помощью воды или водного, содержащего аммиак и/или меламин раствора или суспензии; и c) затем меламин выделяют.Международная заявка была опубликована вместе с отчетом о международном поиске.
EA200100537A 1998-11-13 1999-11-05 Способ получения чистого меламина EA003233B1 (ru)

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
EA200100537A1 true EA200100537A1 (ru) 2001-12-24
EA003233B1 EA003233B1 (ru) 2003-02-27

Family

ID=3523321

Family Applications (1)

Application Number Title Priority Date Filing Date
EA200100537A EA003233B1 (ru) 1998-11-13 1999-11-05 Способ получения чистого меламина

Country Status (22)

Country Link
US (1) US6790956B1 (ru)
EP (1) EP1129080B1 (ru)
JP (1) JP2002529539A (ru)
KR (1) KR100643552B1 (ru)
CN (1) CN1160342C (ru)
AR (1) AR021254A1 (ru)
AT (1) ATE247648T1 (ru)
AU (1) AU767818B2 (ru)
BR (1) BR9915040A (ru)
CA (1) CA2350777A1 (ru)
CZ (1) CZ20011625A3 (ru)
DE (1) DE59906703D1 (ru)
EA (1) EA003233B1 (ru)
EE (1) EE200100262A (ru)
ES (1) ES2209560T3 (ru)
HU (1) HUP0104769A2 (ru)
NO (1) NO20012285L (ru)
PL (1) PL198432B1 (ru)
RO (1) RO119717B1 (ru)
SK (1) SK6192001A3 (ru)
TR (1) TR200101341T2 (ru)
WO (1) WO2000029393A1 (ru)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
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
AU2002351684B2 (en) * 2001-11-16 2008-02-07 Ami-Agrolinz Melamine International Gmbh Method for producing melem-free melamine and quenching agents
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
EA201070769A1 (ru) * 2007-12-20 2010-12-30 ДСМ Ай Пи ЭССЕТС Б.В. Способ получения меламина
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
CN111836679A (zh) * 2018-01-26 2020-10-27 卡萨勒有限公司 将关联尿素设备中回收的废气合成三聚氰胺的设备

Family Cites Families (6)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JP2002529539A (ja) 2002-09-10
PL198432B1 (pl) 2008-06-30
ATE247648T1 (de) 2003-09-15
PL347724A1 (en) 2002-04-22
ES2209560T3 (es) 2004-06-16
CA2350777A1 (en) 2000-05-25
EP1129080A1 (de) 2001-09-05
DE59906703D1 (de) 2003-09-25
TR200101341T2 (tr) 2001-11-21
EE200100262A (et) 2002-08-15
RO119717B1 (ro) 2005-02-28
AR021254A1 (es) 2002-07-03
KR20010073230A (ko) 2001-07-31
EP1129080B1 (de) 2003-08-20
EA003233B1 (ru) 2003-02-27
SK6192001A3 (en) 2001-12-03
US6790956B1 (en) 2004-09-14
AU767818B2 (en) 2003-11-27
WO2000029393A1 (de) 2000-05-25
KR100643552B1 (ko) 2006-11-10
AU1160400A (en) 2000-06-05
NO20012285D0 (no) 2001-05-09
CN1326448A (zh) 2001-12-12
HUP0104769A2 (hu) 2002-03-28
CZ20011625A3 (cs) 2001-08-15
NO20012285L (no) 2001-05-09
CN1160342C (zh) 2004-08-04
BR9915040A (pt) 2001-07-17

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Legal Events

Date Code Title Description
MM4A Lapse of a eurasian patent due to non-payment of renewal fees within the time limit in the following designated state(s)

Designated state(s): AM AZ BY KZ KG MD TJ TM

PC4A Registration of transfer of a eurasian patent by assignment
PD4A Registration of transfer of a eurasian patent in accordance with the succession in title
PD4A Registration of transfer of a eurasian patent in accordance with the succession in title
QB4A Registration of a licence in a contracting state
MK4A Patent expired

Designated state(s): RU