NO131642C - - Google Patents

Info

Publication number
NO131642C
NO131642C NO4768/70A NO476870A NO131642C NO 131642 C NO131642 C NO 131642C NO 4768/70 A NO4768/70 A NO 4768/70A NO 476870 A NO476870 A NO 476870A NO 131642 C NO131642 C NO 131642C
Authority
NO
Norway
Application number
NO4768/70A
Other languages
Norwegian (no)
Other versions
NO131642B (fr
Inventor
P J C Kaasenbrood
Original Assignee
Stamicarbon
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 Stamicarbon filed Critical Stamicarbon
Publication of NO131642B publication Critical patent/NO131642B/no
Publication of NO131642C publication Critical patent/NO131642C/no

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
    • 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
    • C07D251/62—Purification of melamine

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treating Waste Gases (AREA)
NO4768/70A 1969-12-11 1970-12-10 NO131642C (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6918571A NL6918571A (fr) 1969-12-11 1969-12-11

Publications (2)

Publication Number Publication Date
NO131642B NO131642B (fr) 1975-03-24
NO131642C true NO131642C (fr) 1975-07-02

Family

ID=19808596

Family Applications (1)

Application Number Title Priority Date Filing Date
NO4768/70A NO131642C (fr) 1969-12-11 1970-12-10

Country Status (14)

Country Link
US (1) US3697519A (fr)
JP (1) JPS4917271B1 (fr)
AT (1) AT301561B (fr)
BE (1) BE760072A (fr)
CH (1) CH543523A (fr)
DE (1) DE2060929A1 (fr)
ES (1) ES386315A1 (fr)
FR (1) FR2073065A5 (fr)
GB (1) GB1275490A (fr)
NL (1) NL6918571A (fr)
NO (1) NO131642C (fr)
PL (1) PL73475B1 (fr)
SE (1) SE381658B (fr)
ZA (1) ZA708239B (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5146120B2 (fr) * 1973-08-22 1976-12-07
US4138560A (en) * 1975-06-10 1979-02-06 Basf Aktiengesellschaft Process for cooling melamine synthesis waste gases
DE102005023042B4 (de) * 2005-05-06 2007-10-31 Lurgi Ag Verfahren zur Herstellung von Melamin
EP2050740A1 (fr) * 2007-10-15 2009-04-22 Basf Se Procédé de fabrication de mélamine
US9863725B1 (en) 2012-02-29 2018-01-09 The United States Of America As Represented By The Secretary Of The Air Force Systems and methods for thermal management through use of ammonium carbamate
CN108465288A (zh) * 2018-05-07 2018-08-31 河南省中原大化集团有限责任公司 一种物料之间热能交换装置及应用方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3239522A (en) * 1963-03-12 1966-03-08 Chemical Construction Corp Synthesis of urea and melamine
US3544628A (en) * 1965-09-20 1970-12-01 Pullman Inc Urea synthesis
NL6809253A (fr) * 1968-06-29 1969-12-31

Also Published As

Publication number Publication date
NO131642B (fr) 1975-03-24
PL73475B1 (fr) 1974-10-30
NL6918571A (fr) 1971-06-15
DE2060929A1 (de) 1971-06-16
GB1275490A (en) 1972-05-24
US3697519A (en) 1972-10-10
CH543523A (de) 1973-10-31
FR2073065A5 (fr) 1971-09-24
SE381658B (sv) 1975-12-15
BE760072A (fr) 1971-06-09
JPS4917271B1 (fr) 1974-04-27
ES386315A1 (es) 1973-03-16
AT301561B (de) 1972-09-11
ZA708239B (en) 1971-09-29

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