ES8101057A1 - Metodo para la preparacion de melamina - Google Patents

Metodo para la preparacion de melamina

Info

Publication number
ES8101057A1
ES8101057A1 ES491105A ES491105A ES8101057A1 ES 8101057 A1 ES8101057 A1 ES 8101057A1 ES 491105 A ES491105 A ES 491105A ES 491105 A ES491105 A ES 491105A ES 8101057 A1 ES8101057 A1 ES 8101057A1
Authority
ES
Spain
Prior art keywords
melamine
gas mixture
desublimator
gas
urea
Prior art date
Legal status (The legal status 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 status listed.)
Expired
Application number
ES491105A
Other languages
English (en)
Other versions
ES491105A0 (es
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Stamicarbon BV
Original Assignee
Stamicarbon BV
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=19833094&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=ES8101057(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Stamicarbon BV filed Critical Stamicarbon BV
Publication of ES491105A0 publication Critical patent/ES491105A0/es
Publication of ES8101057A1 publication Critical patent/ES8101057A1/es
Expired legal-status Critical Current

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)
  • Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
  • Catalysts (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Devices And Processes Conducted In The Presence Of Fluids And Solid Particles (AREA)
  • Saccharide Compounds (AREA)
  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)
  • Fertilizers (AREA)
  • Treating Waste Gases (AREA)
  • Medicines Containing Material From Animals Or Micro-Organisms (AREA)
  • Cosmetics (AREA)

Abstract

PROCEDIMIENTO DE OBTENCION DE MELAMINA. CONSTA DE LAS SIGUIENTES OPERACIONES: 1) CONVERSION DE UREA Y/O SUS PRODUCTOS DE DESCOMPOSICION TERMICA EN UN LECHO FLUIDO DE MATERIAL CATALITICAMENTE ACTIVO. 2) DESUBLIMACION Y SEPARACION DE LA MELAMINA POR ENFRIAMIENTO A PARTIR DE LA MEZCLA GASEOSA. SE FORMA UNA MEZCLA DE GASES DE ESCAPE QUE CONTIENE PRINCIPALMENTE NH3 Y CO2. LA MAYOR PARTE DE LA MEZCLA DE GASES SE EMPLEA DESPUES DE SER COMPRIMIDA COMO GAS DE FLUIDIFICACION PARA EL LECHO DEL CATALIZADOR. LA PRESION PARCIAL DE NH3 EN EL LECHO FLUIDO DE MATERIAL CATALITICO ESTA ENTRE 350 Y 2.500 KPA.
ES491105A 1979-05-03 1980-05-02 Metodo para la preparacion de melamina Expired ES8101057A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL7903473A NL7903473A (nl) 1979-05-03 1979-05-03 Werkwijze voor het bereiden van melamine.

Publications (2)

Publication Number Publication Date
ES491105A0 ES491105A0 (es) 1980-12-01
ES8101057A1 true ES8101057A1 (es) 1980-12-01

Family

ID=19833094

Family Applications (1)

Application Number Title Priority Date Filing Date
ES491105A Expired ES8101057A1 (es) 1979-05-03 1980-05-02 Metodo para la preparacion de melamina

Country Status (19)

Country Link
US (1) US4348520A (es)
EP (1) EP0018695B1 (es)
JP (2) JPS55149268A (es)
AT (1) ATE1504T1 (es)
BR (1) BR8002683A (es)
CA (1) CA1128515A (es)
CS (1) CS220766B2 (es)
DE (1) DE3060795D1 (es)
EG (1) EG14499A (es)
ES (1) ES8101057A1 (es)
HU (1) HU184276B (es)
IN (1) IN153077B (es)
NL (1) NL7903473A (es)
NO (1) NO154393C (es)
PL (1) PL223958A1 (es)
RO (1) RO79649A (es)
SU (1) SU1060109A3 (es)
YU (1) YU40776B (es)
ZA (2) ZA802417B (es)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8201479A (nl) * 1982-04-07 1983-11-01 Stamicarbon Werkwijze voor het bereiden van melamine.
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
DE3500188C2 (de) * 1984-01-05 1994-08-18 Melamine Chemicals Inc Wasserfreie Hochdruck-Melamin-Synthese
JP2684409B2 (ja) * 1988-03-31 1997-12-03 コニカ株式会社 シアノ基および／またはハロゲン原子で置換されたアニリン類の製造方法およびその製造のために使用される化合物
US5389134A (en) * 1994-07-18 1995-02-14 Xerox Corporation Ink compositions for ink jet printing
US20030028020A1 (en) * 2001-07-27 2003-02-06 Gupta Ram B. Process for the synthesis of high purity melamine
DE102005023041B4 (de) * 2005-05-06 2007-10-11 Lurgi Ag Verfahren zum Herstellen von Melamin mit Wärmerückgewinnung
DE102005023042B4 (de) 2005-05-06 2007-10-31 Lurgi Ag Verfahren zur Herstellung von Melamin
EP2050740A1 (de) * 2007-10-15 2009-04-22 Basf Se Verfahren zur Herstellung von Melamin
DE102008032425B4 (de) * 2008-07-10 2015-07-30 Air Liquide Global E&C Solutions Germany Gmbh Verfahren und Anlage zur Herstellung von Melamin
DE102009052420C5 (de) * 2009-11-10 2014-05-22 Lurgi Gmbh Verfahren zur kontinuierlichen Herstellung von Melamin
CN113375133A (zh) * 2021-06-23 2021-09-10 四川金象赛瑞化工股份有限公司 利用三聚氰胺生产系统生产高品位蒸汽生产装置及其生产高品位蒸汽的方法

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1670126A1 (de) * 1966-08-09 1970-10-29 Basf Ag Verfahren zur Kuehlung der bei der Melaminsynthese erhaltenen Abgase
DE1670286A1 (de) * 1967-11-11 1971-01-28 Basf Ag Verfahren zur Aufarbeitung der bei der Melaminsynthese anfallenden Abgase
DE1812120C3 (de) * 1968-12-02 1974-02-28 Basf Ag, 6700 Ludwigshafen Verfahren zur Herstellung von Melamin
US3700672A (en) * 1969-04-15 1972-10-24 Nissan Chemical Ind Ltd Process for recovering by-product gases at high pressure in melamine production
US3723430A (en) * 1970-10-28 1973-03-27 Nissan Chemical Ind Ltd Method for reclamation of melamine waste gas
US3895007A (en) * 1972-04-28 1975-07-15 Basf Ag Manufacture of melamine
NL178487C (nl) * 1976-03-26 1986-04-01 Stamicarbon Inrichting en werkwijze voor het versproeien van een vloeistof.
RO74590A (ro) * 1977-01-19 1981-08-30 Stamicarbon Bv,Nl Procedeu de preparare a melaminei din uree

Also Published As

Publication number Publication date
CS220766B2 (en) 1983-04-29
HU184276B (en) 1984-07-30
YU40776B (en) 1986-06-30
JPS55149268A (en) 1980-11-20
ES491105A0 (es) 1980-12-01
PL223958A1 (es) 1981-02-13
NL7903473A (nl) 1980-11-05
ZA802416B (en) 1981-04-29
DE3060795D1 (en) 1982-10-28
ATE1504T1 (de) 1982-09-15
BR8002683A (pt) 1980-12-16
EP0018695A1 (en) 1980-11-12
EP0018695B1 (en) 1982-09-01
ZA802417B (en) 1981-04-29
IN153077B (es) 1984-05-26
SU1060109A3 (ru) 1983-12-07
NO801283L (no) 1980-11-04
JPS55149267A (en) 1980-11-20
US4348520A (en) 1982-09-07
EG14499A (en) 1985-03-31
NO154393C (no) 1986-09-10
CA1128515A (en) 1982-07-27
RO79649A (ro) 1982-08-17
YU117880A (en) 1983-10-31
NO154393B (no) 1986-06-02

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