PL368640A1 - Process for obtaining crystalline melamine from melamine melt - Google Patents

Process for obtaining crystalline melamine from melamine melt

Info

Publication number
PL368640A1
PL368640A1 PL02368640A PL36864002A PL368640A1 PL 368640 A1 PL368640 A1 PL 368640A1 PL 02368640 A PL02368640 A PL 02368640A PL 36864002 A PL36864002 A PL 36864002A PL 368640 A1 PL368640 A1 PL 368640A1
Authority
PL
Poland
Prior art keywords
melamine
melt
obtaining crystalline
obtaining
melamine melt
Prior art date
Application number
PL02368640A
Other languages
Polish (pl)
Inventor
Tjay Tjien Tjioe
Johannes Bernardus Jacobus Claassen
Original Assignee
Dsm Ip Assets B.V.
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 Dsm Ip Assets B.V. filed Critical Dsm Ip Assets B.V.
Publication of PL368640A1 publication Critical patent/PL368640A1/en

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
    • C07D251/62—Purification of melamine
    • 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)
PL02368640A 2001-09-12 2002-09-06 Process for obtaining crystalline melamine from melamine melt PL368640A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL1018936A NL1018936C2 (en) 2001-09-12 2001-09-12 Process for obtaining crystalline melamine from a melamine melt.

Publications (1)

Publication Number Publication Date
PL368640A1 true PL368640A1 (en) 2005-04-04

Family

ID=19773994

Family Applications (1)

Application Number Title Priority Date Filing Date
PL02368640A PL368640A1 (en) 2001-09-12 2002-09-06 Process for obtaining crystalline melamine from melamine melt

Country Status (6)

Country Link
EP (1) EP1425271A1 (en)
CN (1) CN1260217C (en)
EA (1) EA005552B1 (en)
NL (1) NL1018936C2 (en)
PL (1) PL368640A1 (en)
WO (1) WO2003022823A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005021802A1 (en) * 2005-05-04 2006-11-09 Ami-Agrolinz Melamine International Gmbh Process and apparatus for the crystallization of melamine
IT201800005382A1 (en) * 2018-05-15 2019-11-15 Process and device for separating melamine crystals in a process of producing melamine from urea

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3637686A (en) * 1969-02-10 1972-01-25 Nissan Chemical Ind Ltd Process for recovering purified melamine
JPH08333351A (en) * 1995-06-09 1996-12-17 Mitsui Toatsu Chem Inc Purification of melamine
ES2195338T3 (en) * 1997-05-28 2003-12-01 Dsm Ip Assets Bv METHOD TO PREPARE MELAMINE.
DE59906703D1 (en) * 1998-11-13 2003-09-25 Agrolinz Melamin Gmbh Linz METHOD FOR PRODUCING PURE MELAMINE

Also Published As

Publication number Publication date
NL1018936C2 (en) 2003-03-13
EA005552B1 (en) 2005-04-28
WO2003022823A1 (en) 2003-03-20
EA200400425A1 (en) 2004-08-26
CN1553902A (en) 2004-12-08
CN1260217C (en) 2006-06-21
EP1425271A1 (en) 2004-06-09

Similar Documents

Publication Publication Date Title
HK1100081A1 (en) Process for preparing substituted pyrimidines
HUP0401296A3 (en) Novel processes for producing pyrimidinon derivatives
GB0104253D0 (en) Process for separating metals
GB0504952D0 (en) Process for producing arylamine
TWI318627B (en) Improved process for carbapenem synthesis
HUP0401486A3 (en) Process for producing pyridine compound
GB0016002D0 (en) Novel process for preparing crystalline particles
GC0000309A (en) Process for the production of melamine
PL370209A1 (en) Process for recovering caprolactam
IL162059A0 (en) Process for the synthesis of -amino- chirally purealcohols
HUP0303102A3 (en) Process for producing substituted aniline compound
AU9168301A (en) Method for the production of melamine
SG106676A1 (en) Process for producing polyolefin
EP1553090A4 (en) Process for producing pyrimidine compound
AU2003275064A8 (en) Optimal crystallization parameter determination process
PL373627A1 (en) Process for the preparation of melamine
GB2384487B (en) Improved process for synthesizing tackifier resin
PL368640A1 (en) Process for obtaining crystalline melamine from melamine melt
GB0225163D0 (en) Process for producing workpieces
AU2002362275A1 (en) Process for obtaining crystalline melamine from melamine melt
EP1457568A4 (en) Process for producing 2 -deoxyguanosine
PL369968A1 (en) Process for preparing melamine
HU0204443D0 (en) Process for preparing fluoroformates
PL374000A1 (en) Improved process for hydroxyazapirones
PL361885A1 (en) Method for producing melamine

Legal Events

Date Code Title Description
REFS Decisions on refusal to grant patents (taken after the publication of the particulars of the applications)