ZA832405B - Process for preparing melamine - Google Patents

Process for preparing melamine

Info

Publication number
ZA832405B
ZA832405B ZA832405A ZA832405A ZA832405B ZA 832405 B ZA832405 B ZA 832405B ZA 832405 A ZA832405 A ZA 832405A ZA 832405 A ZA832405 A ZA 832405A ZA 832405 B ZA832405 B ZA 832405B
Authority
ZA
South Africa
Prior art keywords
melamine
aqueous
product
stream
products
Prior art date
Application number
ZA832405A
Other languages
English (en)
Inventor
Rudolf Van Hardeveld
Original Assignee
Stamicarbon
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 Stamicarbon filed Critical Stamicarbon
Publication of ZA832405B publication Critical patent/ZA832405B/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
ZA832405A 1982-04-07 1983-04-05 Process for preparing melamine ZA832405B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8201479A NL8201479A (nl) 1982-04-07 1982-04-07 Werkwijze voor het bereiden van melamine.

Publications (1)

Publication Number Publication Date
ZA832405B true ZA832405B (en) 1983-12-28

Family

ID=19839547

Family Applications (1)

Application Number Title Priority Date Filing Date
ZA832405A ZA832405B (en) 1982-04-07 1983-04-05 Process for preparing melamine

Country Status (22)

Country Link
US (1) US4408046A (ko)
EP (1) EP0091174B1 (ko)
JP (1) JPS58185573A (ko)
KR (1) KR860001569B1 (ko)
AT (1) ATE30586T1 (ko)
BG (1) BG50277A3 (ko)
BR (1) BR8301744A (ko)
CA (1) CA1244423A (ko)
CS (1) CS241054B2 (ko)
DD (1) DD209625A5 (ko)
DE (1) DE3374311D1 (ko)
ES (1) ES8402277A1 (ko)
HU (1) HU190834B (ko)
IN (1) IN158211B (ko)
MX (1) MX168144B (ko)
NL (1) NL8201479A (ko)
NO (1) NO163009C (ko)
PL (1) PL142730B1 (ko)
RO (1) RO89260A (ko)
SU (1) SU1424734A3 (ko)
YU (1) YU43655B (ko)
ZA (1) ZA832405B (ko)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4565867A (en) * 1984-01-05 1986-01-21 Melamine Chemicals, Inc. Anhydrous high-pressure melamine synthesis
IE57911B1 (en) * 1984-01-05 1993-05-19 Melamine Chemicals Inc Production of melamine
DE3500188C2 (de) * 1984-01-05 1994-08-18 Melamine Chemicals Inc Wasserfreie Hochdruck-Melamin-Synthese
DE3546893C3 (de) * 1984-01-05 1998-01-29 Melamine Chemicals Inc Wasserfreie Hochdruck-Melamin-Synthese
US4648955A (en) * 1985-04-19 1987-03-10 Ivac Corporation Planar multi-junction electrochemical cell
DE4035724A1 (de) * 1990-11-09 1992-05-14 Jacobs Suchard Ag Vorrichtung zum aufnehmen und ausgeben von fluessigkeiten
IT1261841B (it) * 1993-08-23 1996-06-03 Conser Spa Procedimento per la produzione di melammina ad alta purezza.
JP2002529539A (ja) * 1998-11-13 2002-09-10 アグロリンツ メラミン ゲゼルシャフト ミット ベシュレンクテル ハフツング 純粋なメラミンを製造する方法
NL1012466C2 (nl) * 1999-06-29 2001-01-02 Dsm Nv Werkwijze voor de bereiding van melamine uit ureum.
IT1315255B1 (it) * 1999-11-16 2003-02-03 Eurotecnica Dev And Licensing Procedimento di purificazione della melammina.
IT1315265B1 (it) * 1999-12-22 2003-02-03 Eurotecnica Dev And Licensing Processo per la produzione con altre rese di melammina ad elevatapurezza
CN1278928C (zh) * 2001-07-24 2006-10-11 Dsmip财产有限公司 从含nh3、h2o和co2的气体混合物中获得氨基甲酸铵溶液的方法
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
NL1021287C2 (nl) * 2002-08-15 2004-02-17 Dsm Nv Werkwijze voor het bereiden van melamine.
NL1022414C2 (nl) * 2003-01-17 2004-07-20 Dsm Nv Werkwijze voor het onttrekken van energie uit rookgassen.
DE102005028665A1 (de) * 2005-06-15 2007-01-04 Ami-Agrolinz Melamine International Gmbh Verfahren zur Reinigung von Abwässern aus Melaminanlagen
EP2098516A1 (en) 2008-03-04 2009-09-09 Urea Casale S.A. Process for the production of high purity melamine from urea
ITMI20080861A1 (it) * 2008-05-13 2009-11-14 Eurotecnica Melamine Luxembourg Processo migliorato per la purificazione della melammina e relativa apparecchiatura
IT1400090B1 (it) * 2010-05-06 2013-05-17 Eurotecnica Melamine Luxemburg Zweigniederlassung In Ittigen Procedimento a basso consumo energetico per la produzione di melammina ad elevata purezza tramite pirolisi dell'urea, e relativa apparecchiatura

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3496176A (en) * 1968-06-19 1970-02-17 Allied Chem Melamine purification
NL161750C (nl) * 1968-11-16 1980-03-17 Stamicarbon Werkwijze voor het afscheiden van melamine uit een gasvormig reactiemengsel van melamine, ammoniak en kooldioxyde.
RO74590A (ro) * 1977-01-19 1981-08-30 Stamicarbon Bv,Nl Procedeu de preparare a melaminei din uree
NL7903473A (nl) * 1979-05-03 1980-11-05 Stamicarbon Werkwijze voor het bereiden van melamine.

Also Published As

Publication number Publication date
US4408046A (en) 1983-10-04
BG50277A3 (en) 1992-06-15
NL8201479A (nl) 1983-11-01
MX168144B (es) 1993-05-06
IN158211B (ko) 1986-09-27
YU72783A (en) 1986-02-28
PL142730B1 (en) 1987-11-30
RO89260A (ro) 1986-03-15
NO831230L (no) 1983-10-10
NO163009C (no) 1990-03-21
DD209625A5 (de) 1984-05-16
CS241054B2 (en) 1986-03-13
KR840004414A (ko) 1984-10-15
NO163009B (no) 1989-12-11
KR860001569B1 (ko) 1986-10-08
JPH0480908B2 (ko) 1992-12-21
DE3374311D1 (en) 1987-12-10
CS242683A2 (en) 1985-07-16
JPS58185573A (ja) 1983-10-29
YU43655B (en) 1989-10-31
ATE30586T1 (de) 1987-11-15
CA1244423A (en) 1988-11-08
HU190834B (en) 1986-11-28
EP0091174A1 (en) 1983-10-12
EP0091174B1 (en) 1987-11-04
BR8301744A (pt) 1983-12-13
PL241365A1 (en) 1983-11-21
ES521272A0 (es) 1984-01-16
ES8402277A1 (es) 1984-01-16
SU1424734A3 (ru) 1988-09-15

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