DE1244789B - Verfahren zum Reinigen von rohem Melamin - Google Patents

Verfahren zum Reinigen von rohem Melamin

Info

Publication number
DE1244789B
DE1244789B DEA44507A DEA0044507A DE1244789B DE 1244789 B DE1244789 B DE 1244789B DE A44507 A DEA44507 A DE A44507A DE A0044507 A DEA0044507 A DE A0044507A DE 1244789 B DE1244789 B DE 1244789B
Authority
DE
Germany
Prior art keywords
melamine
ammonia
carbon dioxide
aqueous ammonia
oxygen
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.)
Pending
Application number
DEA44507A
Other languages
German (de)
English (en)
Inventor
Ivan Christoffel
Elmer Lionel Nelson
Delbert Procter Schutz
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.)
Honeywell International Inc
Original Assignee
Allied Chemical Corp
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 Allied Chemical Corp filed Critical Allied Chemical Corp
Publication of DE1244789B publication Critical patent/DE1244789B/de
Pending 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
    • C07D251/62—Purification of melamine
    • 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
    • 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
    • C07D251/70—Other substituted melamines

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
DEA44507A 1963-05-29 1963-11-07 Verfahren zum Reinigen von rohem Melamin Pending DE1244789B (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US284023A US3250773A (en) 1963-05-29 1963-05-29 Purification of melamine

Publications (1)

Publication Number Publication Date
DE1244789B true DE1244789B (de) 1967-07-20

Family

ID=23088563

Family Applications (1)

Application Number Title Priority Date Filing Date
DEA44507A Pending DE1244789B (de) 1963-05-29 1963-11-07 Verfahren zum Reinigen von rohem Melamin

Country Status (5)

Country Link
US (1) US3250773A (OSRAM)
BE (1) BE639788A (OSRAM)
DE (1) DE1244789B (OSRAM)
GB (1) GB1004377A (OSRAM)
NL (1) NL300343A (OSRAM)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1315265B1 (it) * 1999-12-22 2003-02-03 Eurotecnica Dev And Licensing Processo per la produzione con altre rese di melammina ad elevatapurezza

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953876C (de) * 1953-04-15 1956-12-06 Stamicarbon Verfahren zur Herstellung von Harnstoff

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2647119A (en) * 1953-07-28 Office
US2918467A (en) * 1959-12-22 Production of melamine
CA503463A (en) * 1954-06-01 Alban J. Lobdell, Jr. Purification of melamine
US2863869A (en) * 1958-12-09 Melamine purification process

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE953876C (de) * 1953-04-15 1956-12-06 Stamicarbon Verfahren zur Herstellung von Harnstoff

Also Published As

Publication number Publication date
GB1004377A (en) 1965-09-15
US3250773A (en) 1966-05-10
NL300343A (OSRAM)
BE639788A (OSRAM)

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