EP1404629A1 - Granules de fertilisant contenant du nitrate d'ammonium - Google Patents
Granules de fertilisant contenant du nitrate d'ammoniumInfo
- Publication number
- EP1404629A1 EP1404629A1 EP01965109A EP01965109A EP1404629A1 EP 1404629 A1 EP1404629 A1 EP 1404629A1 EP 01965109 A EP01965109 A EP 01965109A EP 01965109 A EP01965109 A EP 01965109A EP 1404629 A1 EP1404629 A1 EP 1404629A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fertilizer granules
- coating
- ammonium nitrate
- fertilizer
- weight
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000003337 fertilizer Substances 0.000 title claims abstract description 33
- 239000008187 granular material Substances 0.000 title claims abstract description 23
- PAWQVTBBRAZDMG-UHFFFAOYSA-N 2-(3-bromo-2-fluorophenyl)acetic acid Chemical compound OC(=O)CC1=CC=CC(Br)=C1F PAWQVTBBRAZDMG-UHFFFAOYSA-N 0.000 title claims abstract description 19
- 239000012188 paraffin wax Substances 0.000 claims abstract description 27
- 239000011248 coating agent Substances 0.000 claims abstract description 15
- 238000000576 coating method Methods 0.000 claims abstract description 15
- 239000012169 petroleum derived wax Substances 0.000 claims abstract description 12
- 235000019381 petroleum wax Nutrition 0.000 claims abstract description 12
- 150000001335 aliphatic alkanes Chemical class 0.000 claims abstract description 11
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 9
- 238000007711 solidification Methods 0.000 claims abstract description 8
- 230000008023 solidification Effects 0.000 claims abstract description 8
- 239000001993 wax Substances 0.000 claims abstract description 8
- 239000004215 Carbon black (E152) Substances 0.000 claims abstract description 7
- 229930195733 hydrocarbon Natural products 0.000 claims abstract description 7
- 150000002430 hydrocarbons Chemical class 0.000 claims abstract description 7
- 229910052799 carbon Inorganic materials 0.000 claims abstract description 3
- 239000000203 mixture Substances 0.000 claims description 18
- -1 phosphate ester Chemical class 0.000 claims description 10
- 229910019142 PO4 Inorganic materials 0.000 claims description 7
- 239000010452 phosphate Substances 0.000 claims description 7
- 150000003973 alkyl amines Chemical class 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 2
- 235000019271 petrolatum Nutrition 0.000 description 17
- 235000019809 paraffin wax Nutrition 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 150000001412 amines Chemical class 0.000 description 6
- 229910002651 NO3 Inorganic materials 0.000 description 5
- NHNBFGGVMKEFGY-UHFFFAOYSA-N Nitrate Chemical compound [O-][N+]([O-])=O NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 description 5
- NGLMYMJASOJOJY-UHFFFAOYSA-O azanium;calcium;nitrate Chemical compound [NH4+].[Ca].[O-][N+]([O-])=O NGLMYMJASOJOJY-UHFFFAOYSA-O 0.000 description 5
- 238000002474 experimental method Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 239000004033 plastic Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 150000001735 carboxylic acids Chemical class 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 238000009472 formulation Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000003921 oil Substances 0.000 description 2
- 150000002894 organic compounds Chemical class 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000001953 recrystallisation Methods 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- REYJJPSVUYRZGE-UHFFFAOYSA-N Octadecylamine Chemical compound CCCCCCCCCCCCCCCCCCN REYJJPSVUYRZGE-UHFFFAOYSA-N 0.000 description 1
- 239000004264 Petrolatum Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 150000001399 aluminium compounds Chemical class 0.000 description 1
- 150000008064 anhydrides Chemical class 0.000 description 1
- 229940077746 antacid containing aluminium compound Drugs 0.000 description 1
- 159000000007 calcium salts Chemical class 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 150000001924 cycloalkanes Chemical class 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 150000002191 fatty alcohols Chemical class 0.000 description 1
- 150000002193 fatty amides Chemical class 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 230000002209 hydrophobic effect Effects 0.000 description 1
- 159000000003 magnesium salts Chemical class 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000012184 mineral wax Substances 0.000 description 1
- 150000002823 nitrates Chemical class 0.000 description 1
- QJGQUHMNIGDVPM-UHFFFAOYSA-N nitrogen group Chemical group [N] QJGQUHMNIGDVPM-UHFFFAOYSA-N 0.000 description 1
- 229940066842 petrolatum Drugs 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05C—NITROGENOUS FERTILISERS
- C05C1/00—Ammonium nitrate fertilisers
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05G—MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENT SUBCLASSES OF CLASS C05; MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVING A SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES, SOIL-CONDITIONERS, WETTING AGENTS; FERTILISERS CHARACTERISED BY THEIR FORM
- C05G5/00—Fertilisers characterised by their form
- C05G5/30—Layered or coated, e.g. dust-preventing coatings
- C05G5/38—Layered or coated, e.g. dust-preventing coatings layered or coated with wax or resins
Definitions
- fertilizer granules containing ammonium nitrate especially ammonium nitrate (AN) and calcium ammonium nitrate (CAN)
- AN ammonium nitrate
- CAN calcium ammonium nitrate
- EP-A-0 113 687 there is disclosed a treatment of the nitrate containing fertilizer with a mixture of mineral oil, mineral wax, alkylamine and a phosphate ester resulting into a protection against moisture of more than 60% compared to the blank. Later on, several improvements of water repellence have been published. Most of the processes have been based on addition of a mixture of active polar components with oil and petroleum wax blends.
- fatty amines and fatty alcohol's are fatty amines and fatty alcohol's (EP-A-0 574 306), carboxylic acid (or anhydride) and alcohol's or amines (EP-A-0 692 468), carboxylic acid (or corresponding metal salts) and fatty amide (EP-A-0 768 287), and mixtures of amine phosphate esters and amine sulphonates (EP-A-0 341 102).
- the invention relates to fertilizer granules containing ammonium nitrate and provided with a coating as protection against moisture uptake characterized in that the granules are coated with a petroleum wax which contains : alkanes with a carbon chain length between 18 and 40, with a linearity of the carbon chains higher than 40 %, solidification range being between 50 and 15 ° C and in that the petroleum wax is a paraffin or a hydrocarbon wax.
- paraffin and hydrocarbon waxes can improve the performance up to 60% compared to the blank, which is almost equal with blends from amines and phosphate esters.
- the paraffin waxes have to possess alkanes with a defined carbon chain length (C18-C40) as well as a specific linearity. A high amount (>55%) of normal alkanes is necessary to obtain a good performance.
- the solidification range of the paraffin mixture is of great importance: the best results have been obtained with blends, which have a solidification range between 50 and 15 °C.
- the efficiency of the coating can further be improved by adding a mixture of active polar organic compounds, preferably containing an alkylamine with a surface-active compound, more preferably containing a phosphate ester.
- the amount of active polar organic compounds added to the blend is preferably 0,01 - 15
- the amount of the paraffin wax added is 0,01 - 0,30 % by weight, based upon the total weight of the fertilizer granules and the coating, more preferably 0,06-0,15 % by weight. These small amounts of coating blend have proven to give satisfactory results.
- the invention will now further be described based upon data collected by means of experiments.
- the experiments have shown that the active components mainly contribute to the quality of the top layer. Both the appearance and the hardness improve substantially, especially after addition of a mixture of amine and phosphate ester.
- the different data were measured in the following way, and the experiments were carried out based upon 5 materials and procedures as described below.
- the fertilizers used stabilised calcic ammonium nitrate (27 % nitrogen) or ammonium nitrate (33.5 % nitrogen), has been purchased from Hydro Sluiskil, The Netherlands.
- the fertilizer 1.0 kilogram per sample is stored in sealed plastic jars in an oven at 35 °C for 16 hours. The treatment occurs as follows. The fertilizer is placed in a rotating coating drum, which has a
- Two 200-ml plastic beakers are both filled with 160 grams of (blank or treated) fertilizer. The weight of both the plastic beaker and the fertilizer are measured on an analytical balance. The combined weight is registered. The beakers are placed into a climatic chamber under the following conditions: relative humidity 80%, temperature 20 °C. After
- MP (MUb - MVs) * 100 % in which :
- the hardness of the top layer has been defined as follows :
- the hardness of the top layer has been inspected.
- the hardness can be determined by measuring the power (in Newton) necessary to penetrate the top layer.
- ammonium nitrate (33.5 % N) has been sprayed with 1000 ppm of paraffin (1-10).
- the performance of the individual petroleum waxes is:
- Example 4 The experiments in Example 4 have demonstrated that the addition of amine and/or phosphate ester towards paraffin 3 hardly affects the performance towards water repellence on ammonium nitrate containing fertilisers. However, the active components contribute strongly to the quality of the top layer: the appearance as well as the hardness improves substantially.
- paraffin waxes with a high amount of linear alkanes (>55%) and a solidification range between 50 and 10 °C are able to protect ammonium nitrate containing fertilisers from moisture very efficiently.
- active polar components such as alkylamines and alkyl phosphate esters
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Pest Control & Pesticides (AREA)
- Fertilizers (AREA)
Abstract
La présente invention concerne de granulés de fertilisant contenant du nitrate d'ammonium avec un enrobage de protection contre l'absorption d'humidité, dans lesquels les granulés sont enrobés d'une cire de pétrole qui contient : des alcanes avec une longueur de chaîne carbonée entre 18 et 40 présentant une linéarité des chaînes carbonée supérieure à 40 %, la plage de solidification se situant entre 50 et 15 °C, et la cire de pétrole est une cire de paraffine ou d'hydrocarbure.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/EP2001/007969 WO2003006399A1 (fr) | 2001-07-10 | 2001-07-10 | Granules de fertilisant contenant du nitrate d'ammonium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1404629A1 true EP1404629A1 (fr) | 2004-04-07 |
Family
ID=8164502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01965109A Withdrawn EP1404629A1 (fr) | 2001-07-10 | 2001-07-10 | Granules de fertilisant contenant du nitrate d'ammonium |
Country Status (2)
| Country | Link |
|---|---|
| EP (1) | EP1404629A1 (fr) |
| WO (1) | WO2003006399A1 (fr) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB0502337D0 (en) * | 2005-02-04 | 2005-03-16 | Univ York | Isolation and fractionation of waxes from plants |
| WO2015170217A1 (fr) | 2014-05-05 | 2015-11-12 | Sabic Global Technologies B.V. | Engrais granulaires enrobés, procédés de fabrication de ceux-ci, et utilisations associées |
| US11104618B2 (en) | 2015-07-20 | 2021-08-31 | Sabic Global Technologies B.V. | Fertilizer composition and methods of making and using same |
| WO2017087264A1 (fr) | 2015-11-16 | 2017-05-26 | Sabic Global Technologies B.V. | Engrais granulaires enrobés, procédés de fabrication de ceux-ci, et utilisations associées |
| WO2017087265A1 (fr) | 2015-11-16 | 2017-05-26 | Sabic Global Technologies B.V. | Procédés de fabrication d'engrais granulaires enrobés |
| WO2017137902A1 (fr) | 2016-02-08 | 2017-08-17 | Sabic Global Technologies B.V. | Procédé de fabrication de noyau d'ensemencement d'engrais |
| US11306037B2 (en) | 2017-04-19 | 2022-04-19 | Sabic Global Technologies B.V. | Enhanced efficiency fertilizer with urease inhibitor and nitrification separated within the same particle |
| CN110770194A (zh) | 2017-04-19 | 2020-02-07 | 沙特基础工业全球技术公司 | 具有在单独颗粒中的尿素酶抑制剂和硝化抑制剂的增效肥料 |
| WO2018193345A1 (fr) | 2017-04-20 | 2018-10-25 | Sabic Global Technologies B.V. | Engrais à efficacité améliorée comportant une composition de poudre enrobée |
| US11021409B2 (en) | 2017-08-09 | 2021-06-01 | Sabic Global Technologies B.V. | Extruded fertilizer granules with urease and/or nitrification inhibitors |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1312314A (en) * | 1970-04-27 | 1973-04-04 | Armour Hess Chem Ltd | Coating compositions |
| NL167607B (nl) * | 1977-04-28 | 1981-08-17 | Azote Sa Cie Neerlandaise | Ammoniumnitraat bevattende meststofkorrels en werkwijze ter vervaardiging daarvan. |
| NL8300043A (nl) | 1983-01-06 | 1984-08-01 | Azote Sa Cie Neerlandaise | Ammoniumnitraat bevattende meststofkorrels en bekledingsmengsel daarvoor. |
| FR2629815B1 (fr) | 1988-04-07 | 1991-10-18 | Produits Ind Cie Fse | Produits, compositions et traitements antimottants pour sels, engrais simples et complexes |
| FR2692166B1 (fr) | 1992-06-11 | 1994-07-22 | Ceca Sa | Procede de traitement d'engrais par compositions hydrophobantes en vue de leur stockage en vrac. |
| US5567910A (en) | 1994-05-25 | 1996-10-22 | Ici Canada Inc. | Coating for ammonium nitrate prills |
| FR2722427B1 (fr) | 1994-07-13 | 1997-01-24 | Francais Prod Ind Cfpi | Procede de traitement d'engrais pour lutter contrela reprise d'humidite |
| US5917110A (en) | 1996-10-18 | 1999-06-29 | Tetra Technologies, Inc. | Moisture-resistant calcium containing particles |
-
2001
- 2001-07-10 EP EP01965109A patent/EP1404629A1/fr not_active Withdrawn
- 2001-07-10 WO PCT/EP2001/007969 patent/WO2003006399A1/fr not_active Ceased
Non-Patent Citations (1)
| Title |
|---|
| See references of WO03006399A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2003006399A1 (fr) | 2003-01-23 |
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Legal Events
| Date | Code | Title | Description |
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17P | Request for examination filed |
Effective date: 20030211 |
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| AK | Designated contracting states |
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| AX | Request for extension of the european patent |
Extension state: AL LT LV MK RO SI |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20080201 |