RO89260A - Procedeu pentru purificarea melaminei - Google Patents

Procedeu pentru purificarea melaminei

Info

Publication number
RO89260A
RO89260A RO83110557A RO11055783A RO89260A RO 89260 A RO89260 A RO 89260A RO 83110557 A RO83110557 A RO 83110557A RO 11055783 A RO11055783 A RO 11055783A RO 89260 A RO89260 A RO 89260A
Authority
RO
Romania
Prior art keywords
melamine
aqueous
product
stream
products
Prior art date
Application number
RO83110557A
Other languages
English (en)
French (fr)
Inventor
Rudolf Hardeveld
Original Assignee
Stamicarbon Bv,Nl
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 Bv,Nl filed Critical Stamicarbon Bv,Nl
Publication of RO89260A publication Critical patent/RO89260A/ro

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)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Catalysts (AREA)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Glass Compositions (AREA)
  • Cosmetics (AREA)
  • Medicines That Contain Protein Lipid Enzymes And Other Medicines (AREA)
  • Peptides Or Proteins (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)
  • Seasonings (AREA)
  • Removal Of Specific Substances (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)
RO83110557A 1982-04-07 1983-04-05 Procedeu pentru purificarea melaminei RO89260A (ro)

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
RO89260A true RO89260A (ro) 1986-03-15

Family

ID=19839547

Family Applications (1)

Application Number Title Priority Date Filing Date
RO83110557A RO89260A (ro) 1982-04-07 1983-04-05 Procedeu pentru purificarea melaminei

Country Status (22)

Country Link
US (1) US4408046A (ro)
EP (1) EP0091174B1 (ro)
JP (1) JPS58185573A (ro)
KR (1) KR860001569B1 (ro)
AT (1) ATE30586T1 (ro)
BG (1) BG50277A3 (ro)
BR (1) BR8301744A (ro)
CA (1) CA1244423A (ro)
CS (1) CS241054B2 (ro)
DD (1) DD209625A5 (ro)
DE (1) DE3374311D1 (ro)
ES (1) ES521272A0 (ro)
HU (1) HU190834B (ro)
IN (1) IN158211B (ro)
MX (1) MX168144B (ro)
NL (1) NL8201479A (ro)
NO (1) NO163009C (ro)
PL (1) PL142730B1 (ro)
RO (1) RO89260A (ro)
SU (1) SU1424734A3 (ro)
YU (1) YU43655B (ro)
ZA (1) ZA832405B (ro)

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
CA1220476A (en) * 1984-01-05 1987-04-14 David E. Best Anhydrous high-pressure melamine synthesis
DE3546893C3 (de) * 1984-01-05 1998-01-29 Melamine Chemicals Inc Wasserfreie Hochdruck-Melamin-Synthese
DE3500188C2 (de) * 1984-01-05 1994-08-18 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.
ES2209560T3 (es) * 1998-11-13 2004-06-16 Ami Agrolinz Melamine International Gmbh Procedimiento para la obtencion de melamina pura.
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
WO2003010089A1 (en) * 2001-07-24 2003-02-06 Dsm Ip Assets B.V. Method for obtaining an ammonium carbamate solution from a gas mixture containing nh3, h2o and co2
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
PL241365A1 (en) 1983-11-21
CS241054B2 (en) 1986-03-13
NO163009C (no) 1990-03-21
YU43655B (en) 1989-10-31
YU72783A (en) 1986-02-28
MX168144B (es) 1993-05-06
CA1244423A (en) 1988-11-08
BG50277A3 (en) 1992-06-15
JPH0480908B2 (ro) 1992-12-21
US4408046A (en) 1983-10-04
NO831230L (no) 1983-10-10
JPS58185573A (ja) 1983-10-29
EP0091174B1 (en) 1987-11-04
ZA832405B (en) 1983-12-28
PL142730B1 (en) 1987-11-30
BR8301744A (pt) 1983-12-13
DD209625A5 (de) 1984-05-16
KR860001569B1 (ko) 1986-10-08
IN158211B (ro) 1986-09-27
CS242683A2 (en) 1985-07-16
KR840004414A (ko) 1984-10-15
DE3374311D1 (en) 1987-12-10
ES8402277A1 (es) 1984-01-16
ES521272A0 (es) 1984-01-16
EP0091174A1 (en) 1983-10-12
NL8201479A (nl) 1983-11-01
SU1424734A3 (ru) 1988-09-15
HU190834B (en) 1986-11-28
NO163009B (no) 1989-12-11
ATE30586T1 (de) 1987-11-15

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