AT240371B - Process for the recovery of melamine obtained from urea by pyrolysis under pressure - Google Patents

Process for the recovery of melamine obtained from urea by pyrolysis under pressure

Info

Publication number
AT240371B
AT240371B AT929062A AT929062A AT240371B AT 240371 B AT240371 B AT 240371B AT 929062 A AT929062 A AT 929062A AT 929062 A AT929062 A AT 929062A AT 240371 B AT240371 B AT 240371B
Authority
AT
Austria
Prior art keywords
urea
recovery
under pressure
pyrolysis under
melamine obtained
Prior art date
Application number
AT929062A
Other languages
German (de)
Inventor
Mario Fogagnolo
Giuseppe Rinaudo
Enrico Bondi
Umberto Soldano
Massimo Tardani
Original Assignee
Montedison 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 filed Critical Montedison Spa
Application granted granted Critical
Publication of AT240371B publication Critical patent/AT240371B/en

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)
AT929062A 1961-12-01 1962-11-27 Process for the recovery of melamine obtained from urea by pyrolysis under pressure AT240371B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT2173661 1961-12-01

Publications (1)

Publication Number Publication Date
AT240371B true AT240371B (en) 1965-05-25

Family

ID=11186137

Family Applications (1)

Application Number Title Priority Date Filing Date
AT929062A AT240371B (en) 1961-12-01 1962-11-27 Process for the recovery of melamine obtained from urea by pyrolysis under pressure

Country Status (8)

Country Link
AT (1) AT240371B (en)
BE (1) BE625578A (en)
CH (1) CH423797A (en)
DE (1) DE1470032A1 (en)
ES (1) ES282992A1 (en)
GB (1) GB958633A (en)
LU (1) LU42783A1 (en)
SE (1) SE309422B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3455659A (en) * 1967-09-06 1969-07-15 American Cyanamid Co Superheating ammonia
ITMI20080861A1 (en) 2008-05-13 2009-11-14 Eurotecnica Melamine Luxembourg IMPROVED PROCESS FOR THE PURIFICATION OF MELAMINE AND ITS EQUIPMENT
RU2417992C2 (en) * 2009-07-20 2011-05-10 Открытое акционерное общество "Научно-исследовательский и проектный институт карбамида и продуктов органического синтеза" (ОАО "НИИК") Method of producing melamine and method of removing dissolved gases from aqueous solution of crude melamine

Also Published As

Publication number Publication date
GB958633A (en) 1964-05-21
BE625578A (en) 1963-05-30
CH423797A (en) 1966-11-15
SE309422B (en) 1969-03-24
ES282992A1 (en) 1963-06-01
LU42783A1 (en) 1963-11-30
DE1470032A1 (en) 1969-05-29

Similar Documents

Publication Publication Date Title
CH442733A (en) Process for the production of moldings from a crosslinkable mixture
CH375901A (en) Process for the production of polymers from olefinically unsaturated hydrocarbons
AT254515B (en) Process for the production of moldings from nonwoven-forming particles
AT257566B (en) Process for the production of methacrylonitrile from isobutene
CH386405A (en) Process for the production of pure methanol from synthetic raw methanol
AT267886B (en) Process for the production of foams from polyepoxy compounds
AT278019B (en) PROCESS FOR SEPARATION OF MELAMINE PRODUCED FROM UREA FROM REACTION PRODUCT GASES
AT240371B (en) Process for the recovery of melamine obtained from urea by pyrolysis under pressure
AT283379B (en) Process for the production of melamine from urea
CH379756A (en) Process for the production of pipes from synthetic resin foam
AT248678B (en) Process for the production of moldings from thermoplastics
CH543523A (en) Process for the separation of melamine from a hot synthesis gas mixture containing melamine vapor
CH456552A (en) Process for the separation of ammonia from a gaseous mixture
AT256117B (en) Process for the catalytic production of melamine from gaseous cyanic acid
CH414163A (en) Process for the production of modified melamine resins
AT291953B (en) Process for the separation of acetylene from carrier gases, which result from the pyrolysis of hydrocarbons
AT250371B (en) Process for the recovery of urea from the waste gases from the melamine synthesis from urea carried out in the gas phase, from which melamine has been removed
AT257621B (en) Process for the production of melamine from urea
AT280316B (en) Process for the production of a low-cyanuric acid-ammonia gas mixture from urea
CH416584A (en) Process for the production of cyanic acid from urea
AT250369B (en) Process for the production of melamine from cyanic acid
CH446364A (en) Process for the production of melamine from urea
AT263733B (en) Process for the separation of hydrocarbon pyrolysis gases
CH398625A (en) Process for the production of melamine
AT239811B (en) Process for the production of synthesis gas for the ammonia synthesis