EG22590A - Melamine of improved purity produced by high-pressure non-catalytic process - Google Patents

Melamine of improved purity produced by high-pressure non-catalytic process

Info

Publication number
EG22590A
EG22590A EG44896A EG44896A EG22590A EG 22590 A EG22590 A EG 22590A EG 44896 A EG44896 A EG 44896A EG 44896 A EG44896 A EG 44896A EG 22590 A EG22590 A EG 22590A
Authority
EG
Egypt
Prior art keywords
melamine
pressure
catalytic process
pressure non
improved purity
Prior art date
Application number
EG44896A
Other languages
English (en)
Inventor
David Best
Original Assignee
Melamine Chemicals Inc
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23898467&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EG22590(A) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Melamine Chemicals Inc filed Critical Melamine Chemicals Inc
Application granted granted Critical
Publication of EG22590A publication Critical patent/EG22590A/xx

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

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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
EG44896A 1995-06-07 1996-05-26 Melamine of improved purity produced by high-pressure non-catalytic process EG22590A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/478,088 US5514796A (en) 1995-06-07 1995-06-07 Melamine of improved purity produced by high-pressure, non-catalytic process

Publications (1)

Publication Number Publication Date
EG22590A true EG22590A (en) 2003-04-30

Family

ID=23898467

Family Applications (1)

Application Number Title Priority Date Filing Date
EG44896A EG22590A (en) 1995-06-07 1996-05-26 Melamine of improved purity produced by high-pressure non-catalytic process

Country Status (19)

Country Link
US (1) US5514796A (xx)
EP (1) EP0747366B1 (xx)
JP (1) JPH0912559A (xx)
KR (1) KR100472913B1 (xx)
AT (1) ATE215534T1 (xx)
AU (1) AU706404B2 (xx)
BR (1) BR9602673A (xx)
CA (1) CA2177521A1 (xx)
DE (1) DE69620298T2 (xx)
EG (1) EG22590A (xx)
ES (1) ES2175034T3 (xx)
NO (1) NO307338B1 (xx)
NZ (1) NZ286589A (xx)
PL (1) PL185494B1 (xx)
RO (1) RO119194B1 (xx)
RU (1) RU2161608C2 (xx)
TW (1) TW334429B (xx)
UA (1) UA46722C2 (xx)
ZA (1) ZA963945B (xx)

Families Citing this family (38)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT402294B (de) * 1994-12-23 1997-03-25 Agrolinz Melamin Gmbh Verfahren zur herstellung von hochreinem melamin
AT403579B (de) * 1995-12-07 1998-03-25 Agrolinz Melamin Gmbh Verfahren zur herstellung von hochreinem melamin
US6380385B1 (en) 1995-12-07 2002-04-30 Agrolinz Melanin Gmbh Process for the preparation of pure melamine
NL1002669C2 (nl) * 1996-03-21 1997-09-23 Dsm Nv Werkwijze voor de bereiding van melamine.
NL1003105C2 (nl) * 1996-05-14 1997-11-18 Dsm Nv Werkwijze voor de bereiding van melamine.
NL1003328C2 (nl) * 1996-06-13 1997-12-17 Dsm Nv Werkwijze voor het bereiden van melamine.
NL1003709C2 (nl) * 1996-07-30 1998-02-05 Dsm Nv Werkwijze voor het bereiden van melamine.
NL1003923C2 (nl) 1996-08-30 1998-03-04 Dsm Nv Werkwijze voor de bereiding van ureum.
NL1004814C2 (nl) * 1996-12-18 1998-06-19 Dsm Nv Werkwijze voor het bereiden van melamine.
WO1998027071A1 (en) * 1996-12-16 1998-06-25 Dsm N.V. Method for the preparation of melamine
KR100495262B1 (ko) 1997-05-21 2005-06-14 코닌클리즈케 디에스엠 엔.브이. 멜라민의 제조방법
NL1006095C2 (nl) * 1997-05-21 1998-11-25 Dsm Nv Werkwijze voor het bereiden van melamine.
ES2195338T3 (es) 1997-05-28 2003-12-01 Dsm Ip Assets Bv Metodo para preparar melamina.
NL1006147C2 (nl) * 1997-05-28 1998-12-01 Dsm Nv Werkwijze voor het bereiden van melamine.
JP2002502416A (ja) * 1997-06-02 2002-01-22 ディーエスエム エヌ．ブイ． メラミンの製造法
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.
KR100569572B1 (ko) * 1997-06-02 2006-04-10 디에스엠 아이피 어셋츠 비.브이. 결정성 멜라민
US6355797B2 (en) 1998-01-30 2002-03-12 Agrolinz Melamin Gmbh Process for cooling melamine
NL1008571C2 (nl) * 1998-03-12 1999-07-28 Dsm Nv Kristallijn melamine.
US6303781B1 (en) 1998-05-12 2001-10-16 Dsm N.V. Method for preparing melamine
GB2337259B (en) * 1998-05-12 2000-03-29 Dsm Nv Method for preparing melamine
EP1035117A1 (en) * 1999-03-08 2000-09-13 Dsm N.V. Method for preparing melamine from urea
NL1013456C2 (nl) * 1999-11-02 2001-05-03 Dsm Nv Kristallijn melamine en de toepassing in aminoformaldehydeharsen.
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
EP1188751A1 (en) * 2000-09-13 2002-03-20 Casale Chemicals SA Process for the production of high purity melamine from urea
BR0214165A (pt) * 2001-11-16 2004-09-28 Ami Agrolinz Melamine Int Gmbh Processo para purificar gases impróprios de uma fabrica melamina
NL1022764C2 (nl) * 2003-02-24 2004-08-26 Dsm Nv Natte quench.
DE10326827A1 (de) 2003-06-12 2004-12-30 Ami-Agrolinz Melamine International Gmbh Verfahren und Vorrichtung zur Herstellung von Melamin im einphasigen Rohrreaktor
DE502004003874D1 (de) * 2004-01-17 2007-07-05 Casale Chemicals Sa Verfahren zur schonenden Abkühlung und Kristallisation von Melamin aus einer Melaminschmelze oder aus der Gasphase
DE102005028665A1 (de) * 2005-06-15 2007-01-04 Ami-Agrolinz Melamine International Gmbh Verfahren zur Reinigung von Abwässern aus Melaminanlagen
US7153962B1 (en) 2005-07-12 2006-12-26 Casale Chemicals S.A. Process for gently cooling and crystallizing melamine from a melamine melt or from the gaseous phase
DE102006055571B4 (de) * 2006-11-20 2018-09-27 Urea Casale S.A. Verfahren und Vorrichtung zur Aufarbeitung einer Melaminschmelze
CN101863848B (zh) * 2010-05-28 2012-07-18 四川金象赛瑞化工股份有限公司 用于制备三聚氰胺的系统及方法
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
EP2907567A1 (en) * 2014-02-18 2015-08-19 Casale Sa Combined reactor for high-pressure synthesis of melamine
CN114452897A (zh) * 2022-01-06 2022-05-10 四川金象赛瑞化工股份有限公司 一种尿素加料装置、加料方法及三聚氰胺生产装置和方法

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
HU184277B (en) * 1979-05-03 1984-07-30 Stamicarbon Process for preparing melamine
IE57911B1 (en) * 1984-01-05 1993-05-19 Melamine Chemicals Inc Production of melamine
US4565867A (en) * 1984-01-05 1986-01-21 Melamine Chemicals, Inc. Anhydrous high-pressure melamine synthesis
FI96028C (fi) * 1993-07-01 1996-04-25 Kemira Oy Menetelmä melamiinin valmistamiseksi

Also Published As

Publication number Publication date
EP0747366B1 (en) 2002-04-03
PL185494B1 (pl) 2003-05-30
PL314673A1 (en) 1996-12-09
RU2161608C2 (ru) 2001-01-10
JPH0912559A (ja) 1997-01-14
DE69620298T2 (de) 2002-11-28
DE69620298D1 (de) 2002-05-08
ES2175034T3 (es) 2002-11-16
US5514796A (en) 1996-05-07
NO962339L (no) 1996-12-09
EP0747366A2 (en) 1996-12-11
AU5473296A (en) 1996-12-19
EP0747366A3 (en) 1999-02-10
TW334429B (en) 1998-06-21
NO307338B1 (no) 2000-03-20
ZA963945B (en) 1996-12-10
NO962339D0 (no) 1996-06-05
RO119194B1 (ro) 2004-05-28
UA46722C2 (uk) 2002-06-17
ATE215534T1 (de) 2002-04-15
AU706404B2 (en) 1999-06-17
KR970001336A (ko) 1997-01-24
KR100472913B1 (ko) 2005-08-17
CA2177521A1 (en) 1996-12-08
NZ286589A (en) 1998-04-27
BR9602673A (pt) 1998-11-10

Similar Documents

Publication Publication Date Title
EG22590A (en) Melamine of improved purity produced by high-pressure non-catalytic process
TW341567B (en) Process for the preparation of pure malamine
GEP19991647B (en) Method for Production of Methyl N-N-(3,3-dimethyl-butil)-L-a-Aspartil-L-Phenilalanin Ester
MD1155C2 (ro) Procedee diastereoselective de obţinere a cis-nucleozidelor, analogiilor şi derivaţilor optic activi, compuşi intermediari şi procedee de obţinere a lor
ES8602622A1 (es) Un procedimiento para la preparacion de urea
ZA988922B (en) Process for the synthesis of high-grade chloramine
HRP950605B1 (en) Melamine purifying process
ITMI910778A1 (it) Procedimento per la produzione di urea ad elevata efficienza energetica
UA43341C2 (uk) Спосіб синтезу сечовини (варіанти)
EP0648747A4 (en) NEW INTERMEDIATE PRODUCTS FOR SYNTHESIS AND PRODUCTION OF AMINO ACID DERIVATIVES.
MX9600600A (es) Procedimiento de alto rendimiento para la sintesis de urea.
LTIP996A (en) Process for the production of urea by steps and implementation also on existing plants
BG105099A (en) Process for the preparation of urea
TW334350B (en) The producing method for ultra-filter Alumina tube filters
YU34493A (sh) Postupak i uredjaj za proizvodnju hlorata alkalnog metala
KR850000700B1 (en) Urea production method
GB1309275A (en) Synthesis of urea from melamine synthesis waste gas
ES8306104A1 (es) "un procedimiento mejorado para la preparacion de urea".
CA2242685A1 (en) Nitric acid based chlorine dioxide generation process
SU1743148A1 (ru) Способ получения нитрилотриуксусной кислоты
TW372966B (en) Method for preparation of melamine
RU96112134A (ru) Способ повышения чистоты меламина
SU1334658A1 (ru) Способ получения м-хлордифенилметилмочевины
MX9505260A (es) Proceso mejorado para la obtencion de ftalocianina de cobalto via sales fundidas.
ZA861729B (en) A process for producing aqueous ammonium thiocyanate solutions