AT335485B - Verfahren zur herstellung eines harnstoff-formaldehyd-dungers - Google Patents
Verfahren zur herstellung eines harnstoff-formaldehyd-dungersInfo
- Publication number
- AT335485B AT335485B AT352875A AT352875A AT335485B AT 335485 B AT335485 B AT 335485B AT 352875 A AT352875 A AT 352875A AT 352875 A AT352875 A AT 352875A AT 335485 B AT335485 B AT 335485B
- Authority
- AT
- Austria
- Prior art keywords
- dunger
- formaldehyde
- urea
- producing
- formaldehyde dunger
- Prior art date
Links
- 229920001807 Urea-formaldehyde Polymers 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 title 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G12/00—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08G12/02—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes
- C08G12/04—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds
- C08G12/10—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with acyclic or carbocyclic compounds with acyclic compounds having the moiety X=C(—N<)2 in which X is O, S or —N
- C08G12/12—Ureas; Thioureas
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C9/00—Fertilisers containing urea or urea compounds
- C05C9/02—Fertilisers containing urea or urea compounds containing urea-formaldehyde condensates
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Fertilizers (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742422238 DE2422238C2 (de) | 1974-05-08 | 1974-05-08 | Verfahren zur Herstellung eines Harnstoff-Formaldehyd-Düngers |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| ATA352875A ATA352875A (de) | 1976-07-15 |
| AT335485B true AT335485B (de) | 1977-03-10 |
Family
ID=5914975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AT352875A AT335485B (de) | 1974-05-08 | 1975-05-07 | Verfahren zur herstellung eines harnstoff-formaldehyd-dungers |
Country Status (5)
| Country | Link |
|---|---|
| AT (1) | AT335485B (enrdf_load_stackoverflow) |
| CH (1) | CH610288A5 (enrdf_load_stackoverflow) |
| DE (1) | DE2422238C2 (enrdf_load_stackoverflow) |
| FR (1) | FR2270221B1 (enrdf_load_stackoverflow) |
| NL (1) | NL181362C (enrdf_load_stackoverflow) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1152197B (it) * | 1982-05-27 | 1986-12-31 | Montedison Spa | Procedimento per la preparazione di fertilizzanti a lenta cessione di azoto |
| DE3539631C2 (de) * | 1985-11-08 | 1997-07-31 | Basf Ag | Verfahren zur Herstellung von Oligomethylenharnstoffgemischen |
| IT1301970B1 (it) * | 1998-07-30 | 2000-07-20 | Sadepan Chimica S A S Di Savio | Procedimento per la formulazione di un fertilizzante azotato stabilein forma liquida per un rilascio dell'azoto protratto nel tempo. |
| EP1195365A1 (de) | 2000-09-21 | 2002-04-10 | Agra Dünger GmbH | Verfahren zur Herstellung von Methylenharnstoff-Polymeren |
| AU2003233412B2 (en) * | 2002-03-26 | 2008-12-11 | Koch Agronomic Services, Llc | Slow release nitrogen fertilizer |
| CN115024188B (zh) * | 2022-01-21 | 2024-02-23 | 江苏省农业科学院 | 一种氮缓释型秸秆育秧基质盘的制备方法 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE528582C (de) * | 1929-10-08 | 1931-07-09 | I G Farbenindustrie Akt Ges | Verfahren zur Herstellung von kristallisierten Kondensationsprodukten aus Formaldehyd und Harnstoffen |
-
1974
- 1974-05-08 DE DE19742422238 patent/DE2422238C2/de not_active Expired
-
1975
- 1975-05-07 AT AT352875A patent/AT335485B/de not_active IP Right Cessation
- 1975-05-07 CH CH587875A patent/CH610288A5/xx not_active IP Right Cessation
- 1975-05-07 NL NL7505402A patent/NL181362C/xx not_active IP Right Cessation
- 1975-05-09 FR FR7514527A patent/FR2270221B1/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR2270221B1 (enrdf_load_stackoverflow) | 1981-10-09 |
| NL181362C (nl) | 1987-08-03 |
| DE2422238C2 (de) | 1987-03-26 |
| ATA352875A (de) | 1976-07-15 |
| FR2270221A1 (enrdf_load_stackoverflow) | 1975-12-05 |
| CH610288A5 (en) | 1979-04-12 |
| DE2422238A1 (de) | 1975-11-27 |
| NL7505402A (nl) | 1975-11-11 |
| NL181362B (nl) | 1987-03-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| ELJ | Ceased due to non-payment of the annual fee | ||
| ELJ | Ceased due to non-payment of the annual fee |