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
English (en)
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/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
    • C07D251/62—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 (nl) 2001-09-12 2001-09-12 Werkwijze voor het verkrijgen van kristallijn melamine uit een melaminesmelt.

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 (zh)
CN (1) CN1260217C (zh)
EA (1) EA005552B1 (zh)
NL (1) NL1018936C2 (zh)
PL (1) PL368640A1 (zh)
WO (1) WO2003022823A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102005021802A1 (de) * 2005-05-04 2006-11-09 Ami-Agrolinz Melamine International Gmbh Verfahren und Vorrichtung zur Kristallisation von Melamin
IT201800005382A1 (it) * 2018-05-15 2019-11-15 Procedimento e dispositivo per separare cristalli di melammina in un processo di produzione di melammina da 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 (ja) * 1995-06-09 1996-12-17 Mitsui Toatsu Chem Inc メラミンの精製方法
CN1130353C (zh) * 1997-05-28 2003-12-10 Dsm有限公司 制备蜜胺的方法
ES2209560T3 (es) * 1998-11-13 2004-06-16 Ami Agrolinz Melamine International Gmbh Procedimiento para la obtencion de melamina pura.

Also Published As

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

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Legal Events

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