BE531929A - - Google Patents
Info
- Publication number
- BE531929A BE531929A BE531929DA BE531929A BE 531929 A BE531929 A BE 531929A BE 531929D A BE531929D A BE 531929DA BE 531929 A BE531929 A BE 531929A
- Authority
- BE
- Belgium
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)
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 |
|---|---|
| BE531929A true BE531929A (lt) | 1958-01-03 |
Family
ID=31980755
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE516995D BE516995A (lt) | 1952-01-17 | 1953-01-17 | |
| BE531929D BE531929A (lt) | 1952-01-17 | 1954-09-18 |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE516995D BE516995A (lt) | 1952-01-17 | 1953-01-17 |
Country Status (6)
| Country | Link |
|---|---|
| BE (2) | BE516995A (lt) |
| CH (1) | CH317446A (lt) |
| DE (2) | DE942991C (lt) |
| FR (1) | FR1112418A (lt) |
| GB (2) | GB718934A (lt) |
| NL (1) | NL87214C (lt) |
Families Citing this family (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3095416A (en) * | 1963-06-25 | Urea to melamine process | ||
| US3152128A (en) * | 1964-10-06 | Preparation of melamine | ||
| US3093644A (en) * | 1963-06-11 | Preparation of melamine | ||
| US3179664A (en) * | 1965-04-20 | Processes for preparing melamine | ||
| US3210352A (en) * | 1965-10-05 | Preparation of melamine | ||
| US3009914A (en) * | 1961-11-21 | Melamine process | ||
| 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)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2566224A (en) * | 1951-08-28 | Production of melamine | ||
| US2550659A (en) * | 1951-04-24 | Process for producing melamine | ||
| US2615018A (en) * | 1952-10-21 | Preparation of melamine | ||
| US2649446A (en) * | 1953-08-18 | Peocess for producing melamine | ||
| US2566228A (en) * | 1951-08-28 | Production of melamine | ||
| GB639962A (en) * | 1946-03-27 | 1950-07-12 | Du Pont | Process for the production of melamine |
-
1953
- 1953-01-13 GB GB989/53A patent/GB718934A/en not_active Expired
- 1953-01-16 NL NL175337A patent/NL87214C/xx active
- 1953-01-16 CH CH317446D patent/CH317446A/de unknown
- 1953-01-17 BE BE516995D patent/BE516995A/xx unknown
- 1953-01-18 DE DEA17296A patent/DE942991C/de not_active Expired
-
1954
- 1954-09-17 GB GB26988/54A patent/GB767344A/en not_active Expired
- 1954-09-18 DE DEA21161A patent/DE1028126B/de active Pending
- 1954-09-18 BE BE531929D patent/BE531929A/xx unknown
- 1954-09-18 FR FR1112418D patent/FR1112418A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE516995A (lt) | 1954-11-26 |
| NL87214C (lt) | 1958-01-15 |
| GB767344A (en) | 1957-01-30 |
| DE942991C (de) | 1956-05-09 |
| FR1112418A (fr) | 1956-03-14 |
| CH317446A (de) | 1956-11-30 |
| DE1028126B (de) | 1958-04-17 |
| GB718934A (en) | 1954-11-24 |