EP3440035A1 - Composition de traitement de surface écologique pour le traitement d'engrais solides pour prévenir l'agglutination et la pulvérisation, pour retarder l'absorption d'eau et en même temps pour améliorer la disponibilité de nutriments - Google Patents

Composition de traitement de surface écologique pour le traitement d'engrais solides pour prévenir l'agglutination et la pulvérisation, pour retarder l'absorption d'eau et en même temps pour améliorer la disponibilité de nutriments

Info

Publication number
EP3440035A1
EP3440035A1 EP17722848.3A EP17722848A EP3440035A1 EP 3440035 A1 EP3440035 A1 EP 3440035A1 EP 17722848 A EP17722848 A EP 17722848A EP 3440035 A1 EP3440035 A1 EP 3440035A1
Authority
EP
European Patent Office
Prior art keywords
eco
surface treatment
fertilizers
nutrients
organic matter
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Withdrawn
Application number
EP17722848.3A
Other languages
German (de)
English (en)
Inventor
József ANTAL
Zalán BIGE
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitrogenmuevek Zrt
Original Assignee
Nitrogenmuevek Zrt
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from HU1600497A external-priority patent/HU230852B1/hu
Application filed by Nitrogenmuevek Zrt filed Critical Nitrogenmuevek Zrt
Publication of EP3440035A1 publication Critical patent/EP3440035A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00—Other inorganic fertilisers
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
    • C05F11/00—Other organic fertilisers
    • C05F11/02—Other organic fertilisers from peat, brown coal, and similar vegetable deposits
    • 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
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • 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
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/20—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for preventing the fertilisers being reduced to powder; Anti-dusting additives
    • 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
    • C05G3/00—Mixtures of one or more fertilisers with additives not having a specially fertilising activity
    • C05G3/30—Anti-agglomerating additives; Anti-solidifying additives

Definitions

  • the invention relates to a surface-treatment composition which is a multifunctional additive comprising the mixture of organic and inorganic components of natural origin.
  • the surface-treatment composition according to the invention when applied to the surface of solid fertilizers used as plant nutrients, due to its surfactant properties has a positive influence on their properties being equally desirable in terms of handling, storage, distribution and use.
  • the surface treatment composition according to the invention is eco-friendly: it enhances the availability of the macro and micro nutrient elements of the treated fertilizer, making thereby possible to save material and energy, i.e. to achieve the same effect by using less composition and thus less energy will be required for the application, which is an important additional benefit.
  • a well-known example is the incorporation of strengthening additives to granular fertilizers and the surface treatment of fertilizers so as to prevent agglutination and pulverization and to reduce water uptake.
  • inorganic salts are used as strengthening additives and fatty amines and/or mineral oils or waxes are used for surface treatment.
  • a protective layer may be created on the surface of the particles by the application of inert powders (powdering), such as talk/bentonite/dolomite/diatomite (Gy. Almassy, F. Mate, Gy. Zador: Fertilizers, Technical Editors Budapest, 1977, page 236).
  • the more recent surface treatment preparations comprise, in lieu of hard-to-treat fatty amines, less toxic anionic/cationic or non-ionic surfactant materials, and, as water repellent component, oils or waxes or the mixture thereof.
  • Strengthening and agglutination inhibiting agents incorporated in fertilizers and/or applied on their surface usually are called in the Anglo-Saxon art as "anti-caking agents".
  • polyglycol ethers or the oxidized products thereof are used as surfactants for liquid or solid core fertilizers, thus they can be also the carriers of herbicide, insecticide, fungicide or other hydrophobic or hydrophilic biologically active materials.
  • the process according to EP2310342A1 comprises mixing a humate mineral suspended in water and having a particle size of from 20 to 400 microns (e.g. leonardite, lignite or humified peat) and a natural surfactant, for example alginic acid and an alkaline component (or alternatively sodium alginate) with solid or liquid fertilizers.
  • a natural surfactant for example alginic acid and an alkaline component (or alternatively sodium alginate) with solid or liquid fertilizers.
  • alginic acid and an alkaline component or alternatively sodium alginate
  • the known biological effect of a humate in the mixture is enhanced by alginic acid (polymannuronic acid), because saccharic acids are good microbial nutrients themselves.
  • alginic acid polymannuronic acid
  • the solution according to the description has the disadvantage that the composite preparations prepared by the described process are non-storable: they should be used immediately; consequently, they are not commercial formulations, since the property of the components changes quickly, due to the alkalinity mentioned. Chemical reactions cause deterioration and material loss in the case of both liquid and solid compositions, being thus unsuitable for surface treatment as well.
  • the preparation and dosing of alginic acid makes the production process more complicated, while its material and energy demand makes the process expensive, this is why no information concerning agricultural application has been provided.
  • alginate is digested by a base and then it is neutralized by acid treatment, resulting in the increased activity and nutrient-binding capacity of the humic acids precipitated on the surface of the residue of digestion.
  • the agent prepared according to this patent is a moderate humic acid nutrient complex which ensures a permanent and appropriate nutrient level; however, the production process is complicated and material- and energy-intensive: this is why no industrial implementation has taken place.
  • the inventors went on with researching and after five years they managed to obtain another patent protection for the utilization of the multipurpose soil conditioning mineral, alginite.
  • alginite is being used simultaneously for improving the physical properties, nutrient binding capacity of soils, for increasing water and pH buffer capacity (by the clay and calcite minerals of alginite), for increasing the organic matter and microelement content of the soil (volcanic tuff broils of alginite) as well as for liming, due to the calcium carbonate content thereof.
  • it has to be applied as a soil conditioner in a ratio of 10-100 t/ha.
  • the sphere of economic use (10 km) is limited to the areas neighbouring the mine.
  • the multipurpose usability as an additive would also be beneficial when mixed with fertilizers; however, the effect of small doses is uncertain, for example due to the extremely diverse organic matter (3-40 %) and calcite (5-50%) contents of alginite as a mineral.
  • alginite is admixed with peat and zeolite, whereby the multifunction effect can be improved; however, doses of several tons of this mixture have to be used, so that the soil improving effect detailed in connection with the Hungarian Patent 196,446 could be safely achieved.
  • HU 1200469 Al soil conditioning preparations comprising alginite and zeolite and having favourable effects on the growing conditions of plants are disclosed; the surface treatment of solid fertilizers, however, is not mentioned there.
  • the US publication document 2003/167811 Al mentions leonardite as the source of humic acid, the purpose of use being, however, to prepare a granular-pelleted fertilizer in admixture with Bacillus bacteria and decontaminated manure.
  • the preparation of compositions promoting plant growth, comprising leonardite and calcite powder are disclosed, without mentioning the surface treatment of solid fertilizers.
  • Our objective was to provide multifunctional compositions preventing the agglutination and pulverization of solid fertilizers, retarding water uptake and at the same time being suitable for surface treatment with a favourable effect on the availability of nutrients, which compositions equally show favourable effects in measurements made with regard to physical and chemical stability and agricultural efficacy; furthermore, which are eco-friendly products and transmit this property to the solid fertilizers treated by them.
  • Our further objective was to provide compositions which are effective and biologically efficient also in small quantities, so as not to dilute the fertilizer, i.e. to avoid burdening the environment with unnecessary ballast.
  • the particles of the surface treatment composition do not agglutinate.
  • positive (+) or negative (-) ions preferably fertilizer salts and water
  • the particles of the surface treatment composition do not agglutinate.
  • a plant nutrient, eco-friendly combination will be obtained, which does not comprise any substances being harmful or only undesired for the environment and at the same time protects the surface of solid fertilizers and makes possible the prolonged storage of the end-products prepared in this way.
  • the invention relates to an eco-friendly composition for the surface treatment of solid fertilizers, to prevent agglutination and pulverization, to retard water uptake and at the same time to increase nutrient availability, having a particle size not more than 400 microns, said composition comprising a mixture consisting of a mineral comprising organic matter and a kerogen, humified portion on the one part and a clay mineral comprising also organic matter on the other part, said mixture having hydrophobic and hydrophilic centres, and one or more known plant nutrients.
  • the mineral comprising organic matter and a kerogen, humified portion contains a kerogen, humified organic matter in 70-90 % by weight of its composition.
  • the definition of such minerals can be found in the following reference: Pettit, R. E., 2004: "Organic matter, humus, humate, humic acid, fulvic acid and humin: Their importance in soil fertility and plant health" [http://www.humate.info/main page.html].
  • the clay mineral comprising also organic matter contains a kerogen, humified portion in 3-40 % by weight and clay in 20-80 % by weight.
  • the definition of such minerals can be found in the following reference: Littke: “Deposition, Diagenesis and Weathering of Organic Matter-Rich Sediments", chapter 6 (Springer Verlag, 2006).
  • composition of minerals comprising organic matter and a kerogen, humified portion and that of clay minerals comprising also organic matter is extremely diverse, thus in the surface treatment compositions according to the invention the mixing ratio of for example leonardite used as a mineral comprising organic matter and a kerogen, humified portion (its definition can be found in the following reference: Julia A. Jackson, James P. Mehl, Klaus K. E.
  • ISBN 978-0-660-11905-2 is optimized to achieve 0.2-60 % by weight, preferably 1-40 % by weight total clay mineral content and 0.2-80 % by weight, preferably 0.5-50 % by weight total humic acid content and a suitable proportion of hydrophilic/hydrophobic centres for surface treatment.
  • the ratio of hydrophilic and hydrophobic centres can be regulated by the ratio of the two components (namely, the clay mineral is more hydrophilic, while the organic matter is more hydrophobic), but the hydrophilic and hydrophobic centres of both components are liberated in the end product obtained by particle size reduction.
  • the number of active centres may increase, in proportion to the size reduction, i.e.
  • the appropriate ratio of the two components can be decided by laboratory tests: when there are many hydrophilic centres, the mixture will feel damp and becomes clotted; when there are many hydrophobic centres, the mixture will exfoliate from the surface of the treated fertilizer.
  • These fertilizer components contain free acids (for example nitric acid, sulphuric acid or phosphoric acid with a pH-value between 1 and 5) and free bases (for example ammonium hydroxide, potassium hydroxide or calcium hydroxide with a pH-value between 8 and 14), which are neutralized at the end of the gelation process, if necessary.
  • free acids for example nitric acid, sulphuric acid or phosphoric acid with a pH-value between 1 and 5
  • free bases for example ammonium hydroxide, potassium hydroxide or calcium hydroxide with a pH-value between 8 and 14
  • the eco-friendly surface treatment composition according to the invention may contain a hydrophylic and/or hydrophobic excipient selected according to the intended use, preferably animal and/or plant oils, fats or waxes; lignin, lignocellulose or vinasse, in 0.1-40 % by weight, preferably 0.2-20 % by weight of the organic matter, and natural clay minerals, for example bentonite in 0-60 % by weight.
  • a hydrophylic and/or hydrophobic excipient selected according to the intended use, preferably animal and/or plant oils, fats or waxes; lignin, lignocellulose or vinasse, in 0.1-40 % by weight, preferably 0.2-20 % by weight of the organic matter, and natural clay minerals, for example bentonite in 0-60 % by weight.
  • the Cu and/or S (elementary sulphur) content of the fertilizer components in the eco-friendly surface treatment composition according to the invention can be increased to 0.5-50 % by weight, preferably to 1-40 % by weight, so as to obtain a fungicidal effect in addition to the secondary or micronutrient supplementation.
  • one or more pesticides in 0.1-50 % by weight can also be used in the eco- friendly surface treatment composition according to the invention, in addition to the fertilizer components.
  • bioactive compounds of natural origin such as phytohormones (preferably auxin or cytokinin) and/or vitamins can also be used in the eco-friendly surface treatment composition according to the invention.
  • the mechanical digestion carried out in the presence of the kerogen, humified organic matter results in a gel having hydrophilic and hydrophobic surface-active centres as a multifunctional surface treatment composition, which improves the storing properties of the fertilizer particles, increases its solidity, inhibits pulverization and agglutination; at the same time it can also be used in itself (for example as a foliar and/or seed fertilizer) or even as an additive admixed with known fertilizers, since due to its organic matter, clay mineral and calcite content as well as owing to the humic acids contained it has favourable (poorly soluble, slow-acting) micronutrient complexing/carrying properties.
  • the amount of the clay mineral and the humic acid can be adjusted in the ratio desired for surface treatment and the hydrophobic-hydrophylic character can be ensured.
  • the eco-friendly surface treatment composition according to the invention can be prepared in a known manner.
  • the organic matter comprising also a kerogen, humified portion and the clay mineral as well as the optional further additives are added to the solution or suspension of the plant nutrients intended for use as fertilizer component, or, if the fertilizer is liquid, are suspended in the fertilizer itself in a known manner.
  • the mixture obtained is then subjected to an operation to adjust the particle size of the suspension to not more than 400 microns, preferably to not more than 40 microns and more preferably to less than 10 microns, applying for example a disintegrating slurry pump or a colloidal and/or bead mill.
  • the composition obtained according to the invention can then be used either in itself or in admixture with known fertilizers for the stabilization and surface treatment thereof.
  • the weight ratio of the fertilizer : composition can range between 200 : 1 and 1 : 200.
  • the use of the new surface treatment composition according to the invention is beneficial not only for the production and storage of solid fertilizers, but also in agriculture, whereby the plants' nutrient uptake and utilization increases, which is reflected in the quantity and quality of the crop, and the same result can be obtained by using less fertilizer. Therefore, the composition according to the invention is eco-friendly compared to the usual well-known fertilizers, since it enhances the vitality, nutrient uptake and stress resistance of living beings.
  • 10-100 t/ha see: Hungarian Patent No. 196,446 and Dr. Gabor Solti: "Agricultural exploitation of the alginite and oil shale resources of Hungary", MAFI edition. Budapest, 1987) 10-20 kg/ha, in the form of surface treatment, exerts an adequate biological effect.
  • Main types of the fertilizers useful in the eco-friendly surface treatment compositions according to the invention are: urea (U), ammonium nitrate (AN), dolomitic ammonium nitrate, ammonium sulphate (AS), ammonium thiosulphate, monoammonium phosphate (MAP), diammonium phosphate (DAP), dipotassium phosphate, potassium- monophosphate/phosphate, potassium sulphate, potassium nitrate, potassium chloride, calcium nitrate, calcium magnesium nitrate, mono/dicalcium phosphate, superphosphates, urea phosphate, nitrate, sulphate and chloride salts and organic chelates of micronutrients.
  • U ammonium nitrate
  • AS ammonium sulphate
  • MAP monoammonium phosphate
  • DAP diammonium phosphate
  • dipotassium phosphate potassium- monophosphate/phosphate
  • potassium sulphate potassium nitrate
  • Dr. Gabor Solti "Agricultural exploitation of the alginite and oil shale resources of Hungary", MAFI edition. Budapest, 1987.
  • Other known components that optionally can be used in the eco-friendly surface treatment compositions according to the invention include inter alia the following substances: hydrophilic and/or hydrophobic nutrients, e.g. animal and/or plant oils or fats, waxes, lignin, lignocelluloses or vinasse; known anti-caking agents, dolomite, powders of clay minerals, for example bentonite; pesticides (see for example in the above reference 2); bioactive compounds of natural origin, such as phytohormones (preferably auxin or cytokinin), or vitamins (see for example in the above reference 2).
  • Water uptake, solidity, pulverization and temperature tolerance measurements have been performed by methods typically used in the fertilizer industry.
  • Water uptake volume of water taken up in a Binder KFB 240 climatic chamber
  • Measurement of pulverization 100 g sample is vibrated on EML 200 laboratory vibrating screen for 10 minutes and the fine particle fraction of less than 100 microns is measured with mg accuracy.
  • Dynamic hardness test 100 mg granular-pelleted fertilizer is weighed in a self- produced container and by using compressed air 2 bar pressure is set in the container. The air expanding through the lower opening makes the particles hit the wall. The weight of crushed particles is measured and the ratio of the particles which remained intact is calculated in the percent of the weighed portion.
  • Suspensions a), b) and c) were separately gelated in a Dyno bead mill (manufacturer: Willy A. Bachofen AG, Switzerland) by milling 90 % to a particle size of less than 40 microns and 50 % to a particle size of less than 50 microns. 7 g of each of gels a), b) and c) were separately sprayed onto the surface of 100 g NPK (10: 15: 15) fertilizer each and then with 2 g of each of the gels the surface of each of 100 g H4N03 + CaMg(C03)2 was treated in a similar manner with 2 g of each of the gels.
  • the water uptake, dynamic hardness, pulverization and temperature tolerance of the samples prepared were measured and summarized in the following table.
  • the favourable parameters have been confirmed by the practice, too, i.e. the storage life increased (the degree of caking did not hinder the spreading), and the product of trial manufacture could be spread with the centrifugal spinner broadcasters evenly, without drifting dust.
  • the two main constituent mixtures of the composition were used, investigating the effect of various fertilizers and other additives; the results and the biological efficacy are illustrated by further examples.
  • urea/ammonium nitrate solution density: 1.3 g/cm 3 , N content: 30 % by weight, Zn content: 0.02 % by weight
  • a Cavitron slurry pump manufactured by Warman International Limited, Great-Britain
  • the thixotropic gel produced in this manner was like a tooth paste, containing sufficient surfactant centre, humic acid and clay mineral for the surface treatment of fertilizers with similar consistency.
  • the NPK fertilizer treated according to this example increased the amount of green mass in the initial phase of growth by 10-20 % and in large plot trials it increased the amount of crop by 5-10 % in the case of maize and wheat, compared to the control (the same NPK without surface treatment).
  • a gel was prepared from 50 g of air-dry and ground (less than 1 mm of particle size) alginite from Gerce (with an organic matter content of 6 % by weight) and 50 g of dudarite (with an organic matter content of 60 % by weight) in 220 g of ammonium sulphate (AS) solution saturated at ambient temperature. 2 g of the gel was sprayed onto 100 g of granulated (without Galoril surface treatment substance) particles of NH4N03 + CaMg(C03)2 stirred in a rolling drum. The fertilizer, the surface of which was treated in this manner, was dried at ambient temperature for one day, spread in a thin layer in the laboratory.
  • AS ammonium sulphate
  • the gel was used for surface treatment according to example 4.
  • the water uptake (amount of water taken at 25 °C, with 80 % relative humidity, in 72 hours) decreased to 5-6 %, which is better (less) than the water uptake of the sample of example 2, because U+AS are less water- absorbing than U+AN (Nitrosol). Particle hardness increased by 10% and water uptake decreased, compared to example 3. Agricultural measurements (see for example the above reference 4) of identical NPK doses showed 10-20 % surplus compared to the usual harvest in the case of wheat and rape as well.
  • Suspension was prepared by adding 8 g of dudarite and 8 g of alginite from Pula to 80 g of the AS+U solution of example 5, followed by gelation by the aid of a Dyno bead mill, while adding 16 g of sulphur dust.
  • the thus obtained composition can be used for the surface treatment of NPK, and a secondary nutrient, i.e. sulphur (S) substitute can also be used as a suspension-type foliar fertilizer either with the NPK fertilizer or alone.
  • S secondary nutrient
  • the agricultural activity shown in the previous examples is completed with plant protecting activity, since the powdery mildew killing ability of colloidal sulphur is well-known (see for example the above reference 2).
  • 20 g of air-dry, ground (less than 1 mm particle size) alginite (with 6 % organic matter content) and 20 g of dudarite (with 60 % organic matter content) are mixed during grinding with 6 g of boric acid, 5 g of iron sulphate pentahydrate, 6 g of manganic sulphate, 2 g of zinc sulphate monohydrate, 14 g of ammonium sulphate and 27 g of urea in a disintegrator (for example in a size reduction and dispersion equipment with rotating hammers (manufacturer: the firm Hosokawa Micron, Osaka, Japan) and then the mixture is finely ground in an air-jet mill, in gas flow at a pressure of 2 bar and at a temperature of 40 °C.
  • the fine fraction of less than 40 microns is separated from the gas flow and an aliquot of 5 g is mixed with 95 g of NPK fertilizer, followed by the preparation of premium quality fertilizer by pressing or by particle forming in a drum granulator, which fertilizer contains, in addition to the primary nutrients, micro-nutrients as well and its quality is better than it is usual, even without surface treatment.

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Pest Control & Pesticides (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Inorganic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

L'invention concerne une composition de traitement de surface écologique constituée par un mélange ajusté à une grosseur micrométrique en présence d'un constituant d'engrais, comprenant des ions positifs et négatifs, présentant des centres de surface hydrophobes et hydrophiles et comprenant une matière organique contenant un kérogène, une partie humidifiée et un minéral argileux, et d'un ou de plusieurs constituants utilisés de manière caractéristique pour la préparation de compositions de nutriments. La composition est un additif multifonctionnel comprenant le mélange de constituants organiques et inorganiques d'origine naturelle, qui est écologique en lui-même, ou, lorsqu'il est combiné à d'autres nutriments, les rend également écologiques. D'une part, en raison de ses propriétés tensioactives, il a une influence positive en tant que tensioactif sur les propriétés des engrais, lesdites propriétés étant souhaitables de la même manière en termes de manipulation, de stockage, de distribution et d'utilisation ; d'autre part, il améliore la disponibilité des macronutriments et des micronutriments présents dans la combinaison, ce qui permet d'économiser de la matière et de l'énergie ; troisièmement, il s'agit un nutriment spécial en lui-même pour les bactéries et les plantes du sol.
EP17722848.3A 2016-04-06 2017-03-30 Composition de traitement de surface écologique pour le traitement d'engrais solides pour prévenir l'agglutination et la pulvérisation, pour retarder l'absorption d'eau et en même temps pour améliorer la disponibilité de nutriments Withdrawn EP3440035A1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
HUP1600240 2016-04-06
HU1600497A HU230852B1 (hu) 2016-08-25 2016-08-25 Természetbarát felületkezelõ kompozíció szilárd mûtrágyák összetapadást és porlódást gátló, valamint vízfelvételt retardáló, egyidejûleg tápelem-hasznosulást növelõ hatású kezelésére
PCT/HU2017/050008 WO2017175017A1 (fr) 2016-04-06 2017-03-30 Composition de traitement de surface écologique pour le traitement d'engrais solides pour prévenir l'agglutination et la pulvérisation, pour retarder l'absorption d'eau et en même temps pour améliorer la disponibilité de nutriments

Publications (1)

Publication Number Publication Date
EP3440035A1 true EP3440035A1 (fr) 2019-02-13

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EP17722848.3A Withdrawn EP3440035A1 (fr) 2016-04-06 2017-03-30 Composition de traitement de surface écologique pour le traitement d'engrais solides pour prévenir l'agglutination et la pulvérisation, pour retarder l'absorption d'eau et en même temps pour améliorer la disponibilité de nutriments

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EP (1) EP3440035A1 (fr)
WO (1) WO2017175017A1 (fr)

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CN107721603B (zh) * 2017-11-10 2020-11-03 安徽辉隆集团五禾生态肥业有限公司 一种环保型复合肥防结块剂粉剂及其制备方法和应用
CN107739245B (zh) * 2017-11-10 2020-11-03 安徽辉隆集团五禾生态肥业有限公司 一种环保型复合肥防结块剂水剂及其制备方法和使用方法
RU2672402C1 (ru) * 2018-01-17 2018-11-14 Федеральное государственное бюджетное образовательное учреждение высшего образования "Кабардино-Балкарский государственный аграрный университет им. В.М. Кокова" (ФГБОУ ВО Кабардино-Балкарский ГАУ) Комплексное органоминеральное удобрение с микроэлементами
WO2022257115A1 (fr) * 2021-06-11 2022-12-15 Rhodia Operations Composition d'engrais anti-agglomérant et son procédé de préparation

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