NL6805661A - - Google Patents
Info
- Publication number
- NL6805661A NL6805661A NL6805661A NL6805661A NL6805661A NL 6805661 A NL6805661 A NL 6805661A NL 6805661 A NL6805661 A NL 6805661A NL 6805661 A NL6805661 A NL 6805661A NL 6805661 A NL6805661 A NL 6805661A
- 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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Treating Waste Gases (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEB0092250 | 1967-04-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| NL6805661A true NL6805661A (en:Method) | 1968-10-28 |
| NL155313B NL155313B (nl) | 1977-12-15 |
Family
ID=6986285
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| NL6805661A NL155313B (nl) | 1967-04-26 | 1968-04-22 | Werkwijze voor het vermijden van korstvormingen in druppelafscheiders, die aan de gaszijde achter een inrichting voor het wassen met vloeibaar ureum geschakeld zijn. |
Country Status (6)
| Country | Link |
|---|---|
| AT (1) | AT273979B (en:Method) |
| BE (1) | BE714111A (en:Method) |
| DE (1) | DE1670216C3 (en:Method) |
| FR (1) | FR1560175A (en:Method) |
| GB (1) | GB1215836A (en:Method) |
| NL (1) | NL155313B (en:Method) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT202000010990A1 (it) * | 2020-05-14 | 2021-11-14 | Eurotecnica Melamine Ag | Metodo di lavaggio di un separatore per urea fusa e relativo apparato separatore |
-
1967
- 1967-04-26 DE DE19671670216 patent/DE1670216C3/de not_active Expired
-
1968
- 1968-04-22 NL NL6805661A patent/NL155313B/xx not_active IP Right Cessation
- 1968-04-23 FR FR1560175D patent/FR1560175A/fr not_active Expired
- 1968-04-24 BE BE714111D patent/BE714111A/xx not_active IP Right Cessation
- 1968-04-25 GB GB1958468A patent/GB1215836A/en not_active Expired
- 1968-04-26 AT AT410568A patent/AT273979B/de active
Also Published As
| Publication number | Publication date |
|---|---|
| DE1670216A1 (de) | 1971-01-21 |
| AT273979B (de) | 1969-09-10 |
| FR1560175A (en:Method) | 1969-03-14 |
| NL155313B (nl) | 1977-12-15 |
| BE714111A (en:Method) | 1968-10-24 |
| DE1670216B2 (de) | 1973-05-24 |
| GB1215836A (en) | 1970-12-16 |
| DE1670216C3 (de) | 1973-12-20 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| V1 | Lapsed because of non-payment of the annual fee | ||
| NL80 | Abbreviated name of patent owner mentioned of already nullified patent |
Owner name: BASF |