ES261878A1 - Un procedimiento, con su dispositivo correspondiente para preparar melamina de lata pureza a base de urea - Google Patents

Un procedimiento, con su dispositivo correspondiente para preparar melamina de lata pureza a base de urea

Info

Publication number
ES261878A1
ES261878A1 ES0261878A ES261878A ES261878A1 ES 261878 A1 ES261878 A1 ES 261878A1 ES 0261878 A ES0261878 A ES 0261878A ES 261878 A ES261878 A ES 261878A ES 261878 A1 ES261878 A1 ES 261878A1
Authority
ES
Spain
Prior art keywords
ammonia
reactor
carbon dioxide
melamine
stage
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
ES0261878A
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.)
Montedison SpA
Original Assignee
Montedison SpA
Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA
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 Montedison SpA, Montecatini Societa Generale per lIndustria Mineraria e Chimica SpA filed Critical Montedison SpA
Publication of ES261878A1 publication Critical patent/ES261878A1/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
    • 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
    • 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

Landscapes

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

Abstract

Un procedimiento con su dispositivo correspondiente para preparar melamina de alta pureza, a base de urea superior al 99 %, por conversión de urea en melamina, CO2 y NH3, caracterizado por el hecho de que la reacción convertidora se lleva a cabo en dos fases, la segunda de ellas en ausencia de CO2.
ES0261878A 1959-10-22 1960-10-21 Un procedimiento, con su dispositivo correspondiente para preparar melamina de lata pureza a base de urea Expired ES261878A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1761859 1959-10-22

Publications (1)

Publication Number Publication Date
ES261878A1 true ES261878A1 (es) 1961-04-01

Family

ID=11150511

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0261878A Expired ES261878A1 (es) 1959-10-22 1960-10-21 Un procedimiento, con su dispositivo correspondiente para preparar melamina de lata pureza a base de urea

Country Status (5)

Country Link
BE (1) BE596270A (es)
CH (1) CH409982A (es)
ES (1) ES261878A1 (es)
GB (1) GB949388A (es)
SE (1) SE300210B (es)

Also Published As

Publication number Publication date
CH409982A (de) 1966-03-31
GB949388A (en) 1964-02-12
BE596270A (fr) 1961-04-21
SE300210B (es) 1968-04-22

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