HUP0204128A2 - Method for producing a urea-formaldehyde fertilizer - Google Patents
Method for producing a urea-formaldehyde fertilizerInfo
- Publication number
- HUP0204128A2 HUP0204128A2 HU0204128A HUP0204128A HUP0204128A2 HU P0204128 A2 HUP0204128 A2 HU P0204128A2 HU 0204128 A HU0204128 A HU 0204128A HU P0204128 A HUP0204128 A HU P0204128A HU P0204128 A2 HUP0204128 A2 HU P0204128A2
- Authority
- HU
- Hungary
- Prior art keywords
- urea
- producing
- acid
- added
- formaldehyde fertilizer
- Prior art date
Links
- 229920001807 Urea-formaldehyde Polymers 0.000 title abstract 2
- 239000003337 fertilizer Substances 0.000 title abstract 2
- 238000004519 manufacturing process Methods 0.000 title abstract 2
- ODGAOXROABLFNM-UHFFFAOYSA-N polynoxylin Chemical compound O=C.NC(N)=O ODGAOXROABLFNM-UHFFFAOYSA-N 0.000 title abstract 2
- 239000002253 acid Substances 0.000 abstract 2
- KIDHWZJUCRJVML-UHFFFAOYSA-N putrescine Chemical compound NCCCCN KIDHWZJUCRJVML-UHFFFAOYSA-N 0.000 abstract 2
- VGGLHLAESQEWCR-UHFFFAOYSA-N N-(hydroxymethyl)urea Chemical compound NC(=O)NCO VGGLHLAESQEWCR-UHFFFAOYSA-N 0.000 abstract 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 abstract 1
- 239000007864 aqueous solution Substances 0.000 abstract 1
- 239000004202 carbamide Substances 0.000 abstract 1
- 235000013877 carbamide Nutrition 0.000 abstract 1
- 239000007795 chemical reaction product Substances 0.000 abstract 1
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 229920000642 polymer Polymers 0.000 abstract 1
Classifications
-
- 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)
- Fertilizers (AREA)
- Phenolic Resins Or Amino Resins (AREA)
Abstract
A találmány tárgya eljárás karbamid formaldehid műtrágyaelőállítására, amelynél egy előkondenzátumot, amely monomer ésalacsony molekulasúlyú polimer alakú formaldehidet, karbamidot és/vagymetilol karbamidokat tartalmazó vizes oldatból áll, egy savhozzákeverésével egy 4-nél kisebb pHértékre állítanak be, és areakciótermékként kapott kondenzátumot semlegesítik és szárítják,mimellett az előkondenzátumhoz a sav hozzáadása előtt hexanetilén-tetramint és/vagy tetrametilén-diamint kevernek hozzá. ÓThe subject of the invention is a process for the production of urea formaldehyde fertilizer, in which a precondensate consisting of an aqueous solution containing monomeric and low molecular weight polymer formaldehyde, urea and/or methylol ureas is adjusted to a pH value of less than 4 by mixing with an acid, and the condensate obtained as a reaction product is neutralized and dried, and hexaneethylenetetramine and/or tetramethylenediamine is added to the precondensate before the acid is added. HE
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19923525A DE19923525A1 (en) | 1999-05-21 | 1999-05-21 | Urea-formaldehyde fertilizer preparation, including addition of hexamethylene tetramine and/or tetramethylene diamine to precondensate before final condensation to release ammonia for neutralization in situ |
| PCT/DE2000/001561 WO2000071488A1 (en) | 1999-05-21 | 2000-05-18 | Method for producing a urea-formaldehyde fertilizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| HUP0204128A2 true HUP0204128A2 (en) | 2003-03-28 |
Family
ID=7908862
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| HU0204128A HUP0204128A2 (en) | 1999-05-21 | 2000-05-18 | Method for producing a urea-formaldehyde fertilizer |
Country Status (7)
| Country | Link |
|---|---|
| EP (1) | EP1198439A1 (en) |
| JP (1) | JP2003500320A (en) |
| AU (1) | AU5521300A (en) |
| CA (1) | CA2372684A1 (en) |
| DE (1) | DE19923525A1 (en) |
| HU (1) | HUP0204128A2 (en) |
| WO (1) | WO2000071488A1 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1195365A1 (en) * | 2000-09-21 | 2002-04-10 | Agra Dünger GmbH | Process for preparing methylene-urea polymers |
| JP4966455B2 (en) * | 2001-03-26 | 2012-07-04 | 三菱レイヨン株式会社 | Method for producing urea-formaldehyde condensate super slow release nitrogen fertilizer |
| US6900162B2 (en) * | 2002-03-26 | 2005-05-31 | Georgia-Pacific Resins, Inc. | Slow release nitrogen coating |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| NL6907509A (en) * | 1969-05-16 | 1970-11-18 | ||
| NO148744C (en) * | 1977-09-19 | 1983-12-07 | Norsk Hydro As | PROCEDURE FOR MANUFACTURING UREA WITH HIGH MECHANICAL STRENGTH |
| DD149209A1 (en) * | 1980-02-20 | 1981-07-01 | Bodo Auraeth | METHOD FOR PRODUCING LIQUID, WATER-SOLUBLE, STORAGE-STABLE AMMONIA-UREA FORMALDEHYDE PRODUCTS |
| US5266097A (en) * | 1992-12-31 | 1993-11-30 | The Vigoro Corporation | Aminoureaformaldehyde fertilizer method and composition |
-
1999
- 1999-05-21 DE DE19923525A patent/DE19923525A1/en not_active Withdrawn
-
2000
- 2000-05-18 CA CA002372684A patent/CA2372684A1/en not_active Abandoned
- 2000-05-18 AU AU55213/00A patent/AU5521300A/en not_active Abandoned
- 2000-05-18 WO PCT/DE2000/001561 patent/WO2000071488A1/en not_active Application Discontinuation
- 2000-05-18 JP JP2000619749A patent/JP2003500320A/en not_active Withdrawn
- 2000-05-18 HU HU0204128A patent/HUP0204128A2/en unknown
- 2000-05-18 EP EP00940193A patent/EP1198439A1/en not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| DE19923525A1 (en) | 2000-11-23 |
| AU5521300A (en) | 2000-12-12 |
| JP2003500320A (en) | 2003-01-07 |
| EP1198439A1 (en) | 2002-04-24 |
| CA2372684A1 (en) | 2000-11-30 |
| WO2000071488A1 (en) | 2000-11-30 |
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