BE516995A - - Google Patents

Info

Publication number
BE516995A
BE516995A BE516995DA BE516995A BE 516995 A BE516995 A BE 516995A BE 516995D A BE516995D A BE 516995DA BE 516995 A BE516995 A BE 516995A
Authority
BE
Belgium
Application number
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 filed Critical
Priority claimed from US381128A external-priority patent/US2760961A/en
Publication of BE516995A publication Critical patent/BE516995A/xx

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
    • C01—INORGANIC CHEMISTRY
    • C01C—AMMONIA; CYANOGEN; COMPOUNDS THEREOF
    • C01C3/00—Cyanogen; Compounds thereof
    • C01C3/16—Cyanamide; Salts thereof

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Catalysts (AREA)
  • Silicon Compounds (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
BE516995D 1952-01-17 1953-01-17 BE516995A (ja)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US317446XA 1952-01-17 1952-01-17
US381128A US2760961A (en) 1953-09-18 1953-09-18 Preparation of melamine

Publications (1)

Publication Number Publication Date
BE516995A true BE516995A (ja) 1954-11-26

Family

ID=31980755

Family Applications (2)

Application Number Title Priority Date Filing Date
BE516995D BE516995A (ja) 1952-01-17 1953-01-17
BE531929D BE531929A (ja) 1952-01-17 1954-09-18

Family Applications After (1)

Application Number Title Priority Date Filing Date
BE531929D BE531929A (ja) 1952-01-17 1954-09-18

Country Status (6)

Country Link
BE (2) BE516995A (ja)
CH (1) CH317446A (ja)
DE (2) DE942991C (ja)
FR (1) FR1112418A (ja)
GB (2) GB718934A (ja)
NL (1) NL87214C (ja)

Families Citing this family (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3210352A (en) * 1965-10-05 Preparation of melamine
US3095416A (en) * 1963-06-25 Urea to melamine process
US3179664A (en) * 1965-04-20 Processes for preparing melamine
US3009914A (en) * 1961-11-21 Melamine process
US3093644A (en) * 1963-06-11 Preparation of melamine
US3152128A (en) * 1964-10-06 Preparation of melamine
DE1216316B (de) * 1960-07-14 1966-05-12 Stamicarbon Verbessertes Verfahren zur kontinuierlichen Herstellung von Melamin
US3054796A (en) * 1960-07-18 1962-09-18 Grace W R & Co Melamine process
DE1138785B (de) * 1960-09-27 1962-10-31 Suddeutsche Kalkstickstoff Werke Aktiengesellschaft, Trostberg (Obb ) Verfahren zur Herstellung von melamin.
DE1215722B (de) * 1961-02-09 1966-05-05 Stamicarbon Verfahren zur kontinuierlichen Herstellung von Melamin
DE1294386B (de) * 1961-09-29 1969-05-08 Lentia Gmbh Chem Und Pharm Erz Verfahren zur Herstellung von Melamin
DE1209570B (de) * 1964-03-28 1966-01-27 Basf Ag Verfahren zur Herstellung von Melamin
NL8400717A (nl) * 1984-03-06 1985-10-01 Stamicarbon Werkwijze voor het bereiden van cyanamide.
FR2852011B1 (fr) * 2003-03-07 2006-07-07 Procede de fabrication de la melamine a partir de l'acide cyanurique et application a la purification de la melamine contenant de l'acide cyanurique comme impurete
CN107840811A (zh) * 2017-12-15 2018-03-27 黄河三角洲京博化工研究院有限公司 一种双氰胺的制备方法
CN115944942B (zh) * 2022-12-06 2024-04-12 四川金象赛瑞化工股份有限公司 一种氰胺类物质的制备方法

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2649446A (en) * 1953-08-18 Peocess for producing melamine
US2566224A (en) * 1951-08-28 Production of melamine
US2615018A (en) * 1952-10-21 Preparation of melamine
US2566228A (en) * 1951-08-28 Production of melamine
US2550659A (en) * 1951-04-24 Process for producing melamine
GB639962A (en) * 1946-03-27 1950-07-12 Du Pont Process for the production of melamine

Also Published As

Publication number Publication date
GB767344A (en) 1957-01-30
FR1112418A (fr) 1956-03-14
DE1028126B (de) 1958-04-17
GB718934A (en) 1954-11-24
CH317446A (de) 1956-11-30
BE531929A (ja) 1958-01-03
DE942991C (de) 1956-05-09
NL87214C (ja) 1958-01-15

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