ES238770A1 - Procedimiento de fabricacion de la melamina - Google Patents

Procedimiento de fabricacion de la melamina

Info

Publication number
ES238770A1
ES238770A1 ES0238770A ES238770A ES238770A1 ES 238770 A1 ES238770 A1 ES 238770A1 ES 0238770 A ES0238770 A ES 0238770A ES 238770 A ES238770 A ES 238770A ES 238770 A1 ES238770 A1 ES 238770A1
Authority
ES
Spain
Prior art keywords
reaction
pressure
temperature
melamine
product
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
ES0238770A
Other languages
English (en)
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.)
SOC PRODUITS AZOTES SA
Original Assignee
SOC PRODUITS AZOTES SA
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 SOC PRODUITS AZOTES SA filed Critical SOC PRODUITS AZOTES SA
Publication of ES238770A1 publication Critical patent/ES238770A1/es
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J3/00—Processes of utilising sub-atmospheric or super-atmospheric pressure to effect chemical or physical change of matter; Apparatus therefor
    • B01J3/04—Pressure vessels, e.g. autoclaves

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Procedimiento de fabricación de melamina, por polimerización de la diciandiamida en presencia de amoniaco, en el que se hace reaccionar amoniaco gaseoso bajo presión en dicianidamida soplida previamente calentada a una temperatura comprendida entre 100ºC. y su punto de fusión, caracterizado por el hecho de que la presión del amoniaco se mantiene durante la reacción, de suerte que sea por lo menos igual a 50 kg./cm2 al final de la reacción, y está igualmente mantenida durante el enfriamiento del producto de la reacción, todo el tiempo necesario mientras que la temperatura de este producto se mantenga superior a 250ºC aproximadamente.
ES0238770A 1956-11-28 1957-11-26 Procedimiento de fabricacion de la melamina Expired ES238770A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR726577 1956-11-28

Publications (1)

Publication Number Publication Date
ES238770A1 true ES238770A1 (es) 1958-05-16

Family

ID=8703974

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0238770A Expired ES238770A1 (es) 1956-11-28 1957-11-26 Procedimiento de fabricacion de la melamina

Country Status (7)

Country Link
BE (1) BE562273A (es)
CH (1) CH362414A (es)
DE (1) DE1108701B (es)
ES (1) ES238770A1 (es)
FR (1) FR1161863A (es)
GB (1) GB814934A (es)
IT (1) IT581068A (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3117969A (en) * 1964-01-14 Iwao arai
US3254081A (en) * 1966-05-31 Production op melamine from dicyandiamide

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE752869C (de) * 1938-01-30 1952-11-10 Ig Farbenindustrie Ag Verfahren zur Herstellung von 2, 4, 6-Triamino-1, 3, 5-triazin (Melamin)
DE943354C (de) * 1941-07-29 1956-05-17 Cassella Farbwerke Mainkur Ag Verfahren zur Herstellung von Melamin

Also Published As

Publication number Publication date
GB814934A (en) 1959-06-17
DE1108701B (de) 1961-06-15
BE562273A (es)
IT581068A (es)
CH362414A (fr) 1962-06-15
FR1161863A (fr) 1958-09-05

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