NL6918083A - - Google Patents
Info
- Publication number
- NL6918083A NL6918083A NL6918083A NL6918083A NL6918083A NL 6918083 A NL6918083 A NL 6918083A NL 6918083 A NL6918083 A NL 6918083A NL 6918083 A NL6918083 A NL 6918083A NL 6918083 A NL6918083 A NL 6918083A
- Authority
- NL
- Netherlands
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
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Catalysts (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE1812120A DE1812120C3 (de) | 1968-12-02 | 1968-12-02 | Verfahren zur Herstellung von Melamin |
Publications (2)
Publication Number | Publication Date |
---|---|
NL6918083A true NL6918083A (de) | 1970-06-04 |
NL167693B NL167693B (nl) | 1981-08-17 |
Family
ID=5714933
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL6918083.A NL167693B (nl) | 1968-12-02 | 1969-12-02 | Werkwijze voor het bereiden van melamine. |
Country Status (6)
Country | Link |
---|---|
US (1) | US3657236A (de) |
AT (1) | AT292723B (de) |
DE (1) | DE1812120C3 (de) |
FR (1) | FR2024979A1 (de) |
GB (1) | GB1282298A (de) |
NL (1) | NL167693B (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3895007A (en) * | 1972-04-28 | 1975-07-15 | Basf Ag | Manufacture of melamine |
NL7903473A (nl) * | 1979-05-03 | 1980-11-05 | Stamicarbon | Werkwijze voor het bereiden van melamine. |
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 |
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1968
- 1968-12-02 DE DE1812120A patent/DE1812120C3/de not_active Expired
-
1969
- 1969-11-04 FR FR6937872A patent/FR2024979A1/fr active Pending
- 1969-11-19 US US878190A patent/US3657236A/en not_active Expired - Lifetime
- 1969-12-01 GB GB58506/69A patent/GB1282298A/en not_active Expired
- 1969-12-01 AT AT1121269A patent/AT292723B/de not_active IP Right Cessation
- 1969-12-02 NL NL6918083.A patent/NL167693B/xx not_active Application Discontinuation
Also Published As
Publication number | Publication date |
---|---|
GB1282298A (en) | 1972-07-19 |
DE1812120B2 (de) | 1973-05-30 |
AT292723B (de) | 1971-09-10 |
DE1812120C3 (de) | 1974-02-28 |
US3657236A (en) | 1972-04-18 |
FR2024979A1 (de) | 1970-09-04 |
DE1812120A1 (de) | 1970-06-11 |
NL167693B (nl) | 1981-08-17 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R1B | Notice of opposition during period of laying open | ||
R2W | Refused after publication |