FR2241552B1 - - Google Patents

Info

Publication number
FR2241552B1
FR2241552B1 FR7428812A FR7428812A FR2241552B1 FR 2241552 B1 FR2241552 B1 FR 2241552B1 FR 7428812 A FR7428812 A FR 7428812A FR 7428812 A FR7428812 A FR 7428812A FR 2241552 B1 FR2241552 B1 FR 2241552B1
Authority
FR
France
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
FR7428812A
Other versions
FR2241552A1 (fr
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.)
Mitsui Toatsu Chemicals Inc
Original Assignee
Mitsui Toatsu Chemicals Inc
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 Mitsui Toatsu Chemicals Inc filed Critical Mitsui Toatsu Chemicals Inc
Publication of FR2241552A1 publication Critical patent/FR2241552A1/fr
Application granted granted Critical
Publication of FR2241552B1 publication Critical patent/FR2241552B1/fr
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
    • C07D251/62—Purification of melamine

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Treating Waste Gases (AREA)
  • Gas Separation By Absorption (AREA)
FR7428812A 1973-08-22 1974-08-22 Expired FR2241552B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48093284A JPS5146120B2 (fr) 1973-08-22 1973-08-22

Publications (2)

Publication Number Publication Date
FR2241552A1 FR2241552A1 (fr) 1975-03-21
FR2241552B1 true FR2241552B1 (fr) 1978-09-22

Family

ID=14078109

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7428812A Expired FR2241552B1 (fr) 1973-08-22 1974-08-22

Country Status (13)

Country Link
US (1) US3979392A (fr)
JP (1) JPS5146120B2 (fr)
AT (1) AT339325B (fr)
BE (1) BE819058A (fr)
CA (1) CA1014153A (fr)
CH (1) CH597203A5 (fr)
DE (1) DE2440315C3 (fr)
ES (1) ES429335A1 (fr)
FR (1) FR2241552B1 (fr)
GB (1) GB1437876A (fr)
IT (1) IT1020108B (fr)
NL (1) NL7410955A (fr)
RO (1) RO70480A (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4138560A (en) * 1975-06-10 1979-02-06 Basf Aktiengesellschaft Process for cooling melamine synthesis waste gases
DE3031124A1 (de) * 1980-08-18 1982-04-08 Basf Ag, 6700 Ludwigshafen Verfahren zur abtrennung von fluessigem harnstoff aus den abgasen der melaminsynthese
JPS57165375A (en) * 1981-04-02 1982-10-12 Yuka Meramin Kk Separation of liquid drop
NL8102391A (nl) * 1981-05-15 1982-12-01 Unie Van Kunstmestfab Bv Werkwijze voor het winnen van waardevolle bestanddelen uit de afvalstromen verkregen bij de ureumbereiding.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1770969C3 (de) * 1968-07-25 1978-08-24 Basf Ag, 6700 Ludwigshafen Verfahren zur Rückführung der Abgase der Melaminsynthese in die Hamstoffsynthese
BE760072A (fr) * 1969-12-11 1971-06-09 Stamicarbon Procede pour la separation de melamine a partir d'un melange gazeux de synthese comprenant de la vapeur de melamine
US3723430A (en) * 1970-10-28 1973-03-27 Nissan Chemical Ind Ltd Method for reclamation of melamine waste gas

Also Published As

Publication number Publication date
JPS5046683A (fr) 1975-04-25
NL7410955A (nl) 1975-02-25
IT1020108B (it) 1977-12-20
DE2440315C3 (de) 1980-10-02
US3979392A (en) 1976-09-07
ATA682674A (de) 1977-02-15
JPS5146120B2 (fr) 1976-12-07
CA1014153A (en) 1977-07-19
AT339325B (de) 1977-10-10
GB1437876A (en) 1976-06-03
DE2440315B2 (de) 1980-02-14
ES429335A1 (es) 1976-10-01
RO70480A (fr) 1980-06-15
FR2241552A1 (fr) 1975-03-21
CH597203A5 (fr) 1978-03-31
BE819058A (fr) 1974-12-16
DE2440315A1 (de) 1975-03-06

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Legal Events

Date Code Title Description
ST Notification of lapse