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FR1112418A - Improvements relating to the preparation of melamine and cyanamide - Google Patents

Improvements relating to the preparation of melamine and cyanamide

Info

Publication number
FR1112418A
FR1112418A FR1112418DA FR1112418A FR 1112418 A FR1112418 A FR 1112418A FR 1112418D A FR1112418D A FR 1112418DA FR 1112418 A FR1112418 A FR 1112418A
Authority
FR
France
Prior art keywords
cyanamide
melamine
preparation
improvements relating
relating
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.)
Expired
Application number
Other languages
French (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.)
Wyeth Holdings LLC
Original Assignee
American Cyanamid Co
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
Priority claimed from US381128A external-priority patent/US2760961A/en
Application filed by American Cyanamid Co filed Critical American Cyanamid Co
Application granted granted Critical
Publication of FR1112418A publication Critical patent/FR1112418A/en
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
    • C07D251/56—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)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
  • Phenolic Resins Or Amino Resins (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Catalysts (AREA)
  • Silicon Compounds (AREA)
FR1112418D 1952-01-17 1954-09-18 Improvements relating to the preparation of melamine and cyanamide Expired FR1112418A (en)

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
FR1112418A true FR1112418A (en) 1956-03-14

Family

ID=31980755

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1112418D Expired FR1112418A (en) 1952-01-17 1954-09-18 Improvements relating to the preparation of melamine and cyanamide

Country Status (6)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3009914A (en) * 1961-11-21 Melamine process
US3179664A (en) * 1965-04-20 Processes for preparing melamine

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3152128A (en) * 1964-10-06 Preparation of melamine
US3095416A (en) * 1963-06-25 Urea to melamine process
US3210352A (en) * 1965-10-05 Preparation of melamine
US3093644A (en) * 1963-06-11 Preparation of melamine
DE1216316B (en) * 1960-07-14 1966-05-12 Stamicarbon Improved process for the continuous production of melamine
US3054796A (en) * 1960-07-18 1962-09-18 Grace W R & Co Melamine process
DE1138785B (en) * 1960-09-27 1962-10-31 Suddeutsche Kalkstickstoff Werke Aktiengesellschaft, Trostberg (Obb ) Process for the production of melamine.
DE1215722B (en) * 1961-02-09 1966-05-05 Stamicarbon Process for the continuous production of melamine
DE1294386B (en) * 1961-09-29 1969-05-08 Lentia Gmbh Chem Und Pharm Erz Process for the production of melamine
DE1209570B (en) * 1964-03-28 1966-01-27 Basf Ag Process for the production of melamine
NL8400717A (en) * 1984-03-06 1985-10-01 Stamicarbon PROCESS FOR PREPARING CYANAMIDE.
FR2852011B1 (en) * 2003-03-07 2006-07-07 PROCESS FOR THE PRODUCTION OF MELAMINE FROM CYANURIC ACID AND APPLICATION FOR THE PURIFICATION OF MELAMINE CONTAINING CYANURIC ACID AS IMPURITY
CN107840811A (en) * 2017-12-15 2018-03-27 黄河三角洲京博化工研究院有限公司 A kind of preparation method of dicyandiamide
CN115944942B (en) * 2022-12-06 2024-04-12 四川金象赛瑞化工股份有限公司 Preparation method of cyanamide substance

Family Cites Families (6)

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

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3009914A (en) * 1961-11-21 Melamine process
US3179664A (en) * 1965-04-20 Processes for preparing melamine

Also Published As

Publication number Publication date
BE531929A (en) 1958-01-03
NL87214C (en) 1958-01-15
CH317446A (en) 1956-11-30
BE516995A (en) 1954-11-26
GB767344A (en) 1957-01-30
DE1028126B (en) 1958-04-17
GB718934A (en) 1954-11-24
DE942991C (en) 1956-05-09

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