FI933033A0 - Menetelmä melamiinin valmistamiseksi - Google Patents

Menetelmä melamiinin valmistamiseksi

Info

Publication number
FI933033A0
FI933033A0 FI933033A FI933033A FI933033A0 FI 933033 A0 FI933033 A0 FI 933033A0 FI 933033 A FI933033 A FI 933033A FI 933033 A FI933033 A FI 933033A FI 933033 A0 FI933033 A0 FI 933033A0
Authority
FI
Finland
Prior art keywords
melamine
pct
vaporizer
sec
range
Prior art date
Application number
FI933033A
Other languages
English (en)
Swedish (sv)
Other versions
FI96028C (fi
FI933033A (fi
FI96028B (fi
Inventor
Ilkka Turunen
Pekka Oinas
Original Assignee
Kemira Oy
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 Kemira Oy filed Critical Kemira Oy
Publication of FI933033A0 publication Critical patent/FI933033A0/fi
Priority to FI933033A priority Critical patent/FI96028C/fi
Priority to SA94150027A priority patent/SA94150027B1/ar
Priority to JP7503303A priority patent/JPH08512042A/ja
Priority to EP94919702A priority patent/EP0706519B1/en
Priority to PT94919702T priority patent/PT706519E/pt
Priority to PCT/FI1994/000307 priority patent/WO1995001345A1/en
Priority to US08/571,929 priority patent/US5731437A/en
Priority to DE69422039T priority patent/DE69422039T2/de
Priority to ES94919702T priority patent/ES2141238T3/es
Priority to AT94919702T priority patent/ATE187446T1/de
Publication of FI933033A publication Critical patent/FI933033A/fi
Application granted granted Critical
Publication of FI96028B publication Critical patent/FI96028B/fi
Publication of FI96028C publication Critical patent/FI96028C/fi

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)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
FI933033A 1993-07-01 1993-07-01 Menetelmä melamiinin valmistamiseksi FI96028C (fi)

Priority Applications (10)

Application Number Priority Date Filing Date Title
FI933033A FI96028C (fi) 1993-07-01 1993-07-01 Menetelmä melamiinin valmistamiseksi
SA94150027A SA94150027B1 (ar) 1993-07-01 1994-06-26 عملية لتحضير الميلامين
JP7503303A JPH08512042A (ja) 1993-07-01 1994-07-01 メラミンの製造方法
EP94919702A EP0706519B1 (en) 1993-07-01 1994-07-01 Process for the preparation of melamine
PT94919702T PT706519E (pt) 1993-07-01 1994-07-01 Processo para a preparacao da melamina
PCT/FI1994/000307 WO1995001345A1 (en) 1993-07-01 1994-07-01 Process for the preparation of melamine
US08/571,929 US5731437A (en) 1993-07-01 1994-07-01 Process for the preparation of melamine
DE69422039T DE69422039T2 (de) 1993-07-01 1994-07-01 Verfahren zur herstellung von melamin
ES94919702T ES2141238T3 (es) 1993-07-01 1994-07-01 Proceso para la preparacion de melamina.
AT94919702T ATE187446T1 (de) 1993-07-01 1994-07-01 Verfahren zur herstellung von melamin

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI933033A FI96028C (fi) 1993-07-01 1993-07-01 Menetelmä melamiinin valmistamiseksi
FI933033 1993-07-01

Publications (4)

Publication Number Publication Date
FI933033A0 true FI933033A0 (fi) 1993-07-01
FI933033A FI933033A (fi) 1995-01-02
FI96028B FI96028B (fi) 1996-01-15
FI96028C FI96028C (fi) 1996-04-25

Family

ID=8538255

Family Applications (1)

Application Number Title Priority Date Filing Date
FI933033A FI96028C (fi) 1993-07-01 1993-07-01 Menetelmä melamiinin valmistamiseksi

Country Status (10)

Country Link
US (1) US5731437A (fi)
EP (1) EP0706519B1 (fi)
JP (1) JPH08512042A (fi)
AT (1) ATE187446T1 (fi)
DE (1) DE69422039T2 (fi)
ES (1) ES2141238T3 (fi)
FI (1) FI96028C (fi)
PT (1) PT706519E (fi)
SA (1) SA94150027B1 (fi)
WO (1) WO1995001345A1 (fi)

Families Citing this family (21)

* 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
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
AU5346298A (en) * 1996-12-16 1998-07-15 Dsm N.V. Method for the preparation of melamine
NL1004814C2 (nl) * 1996-12-18 1998-06-19 Dsm Nv Werkwijze voor het bereiden van melamine.
JP2002501911A (ja) * 1998-01-30 2002-01-22 アグロリンツ・メラミン・ゲゼルシヤフト・ミト・ベシユレンクテル・ハフツング メラミンの冷却法
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.
FI107257B (fi) * 1998-12-31 2001-06-29 Kemira Agro Oy Menetelmä melamiinin valmistamiseksi
EP1035117A1 (en) * 1999-03-08 2000-09-13 Dsm N.V. Method for preparing melamine from urea
EP1054006A1 (en) * 1999-05-20 2000-11-22 Dsm N.V. Method for preparing melamine
NL1012467C2 (nl) * 1999-06-29 2001-01-02 Dsm Nv Werkwijze voor het afscheiden van melamine uit melaminehoudende gasmengels.
AT409489B (de) 2000-10-20 2002-08-26 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
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
DE10319902A1 (de) * 2003-04-29 2005-08-18 Ami-Agrolinz Melamine International Gmbh Verfahren und Vorrichtung zur Herstellung von Melamin unter Hochdruck
EP2222651A2 (en) * 2007-12-20 2010-09-01 DSM IP Assets B.V. Process for the preparation of melamine
ITMI20082294A1 (it) * 2008-12-22 2010-06-23 Eurotecnica Melamine Luxemburg Zwe Igniederlassun Procedimento migliorato per la produzione di melammina ad elevata purezza mediante pirolisi dell'urea
EP3208264A1 (en) * 2016-02-19 2017-08-23 Casale SA Method for revamping a high pressure melamine plant
EP4245754A1 (en) * 2022-03-15 2023-09-20 Casale Sa Process for the synthesis of melamine

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3116294A (en) * 1963-12-31 Process- for preparing high-purity melamine from urea
GB800722A (en) * 1955-03-12 1958-09-03 Montedison Spa Improvements in the production of melamine from urea
DE1695564A1 (de) * 1966-07-22 1971-05-06 Nissan Chemical Ind Ltd Verfahren zur Herstellung von Melamin hoher Reinheit
US4565867A (en) * 1984-01-05 1986-01-21 Melamine Chemicals, Inc. Anhydrous high-pressure melamine synthesis
IT1270577B (it) * 1993-02-22 1997-05-06 Wladimiro Bizzotto Reattore melamina ad alta pressione
US5514797A (en) * 1995-06-07 1996-05-07 Melamine Chemicals, Inc. Method for increasing purity of melamine

Also Published As

Publication number Publication date
EP0706519A1 (en) 1996-04-17
JPH08512042A (ja) 1996-12-17
WO1995001345A1 (en) 1995-01-12
ATE187446T1 (de) 1999-12-15
FI96028C (fi) 1996-04-25
ES2141238T3 (es) 2000-03-16
EP0706519B1 (en) 1999-12-08
FI933033A (fi) 1995-01-02
SA94150027B1 (ar) 2005-10-15
DE69422039T2 (de) 2000-05-25
DE69422039D1 (de) 2000-01-13
US5731437A (en) 1998-03-24
PT706519E (pt) 2000-05-31
FI96028B (fi) 1996-01-15

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Legal Events

Date Code Title Description
FG Patent granted

Owner name: KEMIRA AGRO OY

BB Publication of examined application
PC Transfer of assignment of patent

Owner name: KEMIRA AGRO OY

MA Patent expired