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WO2025088357A1 - Composition d'engrais à base de soufre en suspension, à base de solution d'urée-nitrate d'ammonium - Google Patents

Composition d'engrais à base de soufre en suspension, à base de solution d'urée-nitrate d'ammonium Download PDF

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Publication number
WO2025088357A1
WO2025088357A1 PCT/IB2023/060705 IB2023060705W WO2025088357A1 WO 2025088357 A1 WO2025088357 A1 WO 2025088357A1 IB 2023060705 W IB2023060705 W IB 2023060705W WO 2025088357 A1 WO2025088357 A1 WO 2025088357A1
Authority
WO
WIPO (PCT)
Prior art keywords
sulphur
ammonium nitrate
nitrate solution
urea
composition
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.)
Pending
Application number
PCT/IB2023/060705
Other languages
English (en)
Inventor
Mariusz SZYMANOWSKI
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.)
Sklad Rolny Spolka Z Ograniczona Odpowiedzialnoscia
Original Assignee
Sklad Rolny Spolka Z Ograniczona Odpowiedzialnoscia
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
Application filed by Sklad Rolny Spolka Z Ograniczona Odpowiedzialnoscia filed Critical Sklad Rolny Spolka Z Ograniczona Odpowiedzialnoscia
Publication of WO2025088357A1 publication Critical patent/WO2025088357A1/fr
Pending legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C05C9/005—Post-treatment
    • 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
    • C05C—NITROGENOUS FERTILISERS
    • C05C1/00—Ammonium nitrate fertilisers
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • 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
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D9/00—Other inorganic fertilisers
    • C05D9/02—Other inorganic fertilisers containing trace elements
    • 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
    • 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
    • C05G3/50—Surfactants; Emulsifiers
    • 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
    • C05G5/20—Liquid fertilisers
    • C05G5/23—Solutions
    • 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
    • C05G5/20—Liquid fertilisers
    • C05G5/27—Dispersions, e.g. suspensions or emulsions

Definitions

  • the subject of the invention is a new composition of suspended nitrogen-sulphur fertilizer based on urea-ammonium nitrate solution. Due to its properties, it will be possible to obtain a stabilised sulphur suspension, which will be used by farmers as an addition to liquid UAN fertilizer.
  • Sulphur is a very important component of soil. Sulphur increases protein and fat content in seeds, and also increases plant resistance to diseases, drought, temperature variations and pathogens. Any disturbances in availability of this element affect photosynthetic reactions. In the plant, sulphur is also responsible for capture and detoxification of heavy metal ions, and it is a component of mustard and essential oils, which provide natural protection against pathogens and pests. Additionally, elemental sulphur acts as a pesticide and/or fungicide against some soil pests and microorganisms. A good way to supply sulphur to the soil is to use liquid suspension fertilizers. Suspension fertilizers can be applied both to the soil and to the leaves. High fragmentation of a solid means better absorption of an ingredient by plants.
  • suspension fertilizers The main disadvantage of suspension fertilizers is a sedimentation process that occurs in two-phase systems.
  • practical knowledge of their properties is important.
  • Each product must be stable during use.
  • the ambient temperature drops, long-term storage of liquid fertilizers becomes problematic and accurate knowledge of the saturation temperature is necessary.
  • a tendency to phase separation is also dangerous.
  • Liquid nitrogen fertilizers with added sulphur are known. In many of them, sulphur appears as a supplement to the main components (N, P, K). These are mainly sulphate fertilizers, which are a direct source of this nutrient for plants. Sulphate sulphur most often occurs as ammonium sulphate, but it can also occur as potassium, calcium or magnesium sulphate. Sulphate sulphur is found in most mineral fertilizers in amounts ranging from several percent to between ten and twenty percent [5], Solid ammonium sulphate contains about 24% of sulphur. Liquid fertilizers available on the market contain 6 and 3% of sulphur, respectively. These are fertilizers for soil application and are applied using coarse spraying or pouring into the ground.
  • the purpose of the invention is to obtain a fertilizer concentrate that does not sediment.
  • the subject of the invention is a fertilizer concentrate containing 10-45% (w/w) of milled sulphur, 55-90% (w/w) of urea-ammonium nitrate solution, 0.1-2% (w/w) of sodium lignosulphonate, 0.01-1% (w/w) of xanthan gum, 0.1-1% (w/w) of clay material, preferably in a form of powdered attapulgite with particle size d90 ⁇ 30 pm, wherein 90% of the attapulgite particles are smaller than 30 pm.
  • sodium lignosulphonate is an additive that allows wetting of sulphur particles, protecting against sulphur caking in contact with an aqueous urea-ammonium nitrate solution
  • xanthan gum is a viscosity regulator that slows down the falling motion of sulphur particles in suspension
  • clay material, bonding with sulphur particles, is responsible for reducing their density and preventing sedimentation. Binding with sulphur occurs as a result of swelling in an environment of high ionic strength and formation of gel structures.
  • Fig. 1 shows samples of fertilizer concentrates after 3 weeks of sedimentation test
  • Fig. 2 shows sample solutions diluted 1 : 1 with an aqueous solution of 32% urea-ammonium nitrate after 3 days.
  • Two other samples of fertilizer concentrate were also prepared, in which a lower content of clay material was used, from two different producers: sample no. 50b with a content of 0.27% (w/w) clay material in the form of powdered attapulgite and sample no. 51b with a content of 0.27% (w/w) clay material in the form of modified natural smectic clay (magnesium-aluminum silicate).
  • sample no. 50b with a content of 0.27% (w/w) clay material in the form of powdered attapulgite
  • sample no. 51b with a content of 0.27% (w/w) clay material in the form of modified natural smectic clay (magnesium-aluminum silicate).
  • the produced fertilizer concentrates No. 9d, 50b and 51b were analyzed and kept for observation for 3 weeks (Fig. 1). After 3 weeks, no changes in the appearance or sedimentation of the samples were observed.

Landscapes

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

Abstract

L'invention concerne une composition de concentré d'engrais azote-soufre contenant 10-45 % (p/p) de soufre broyé, 90-55 % de solution d'urée-nitrate d'ammonium (p/p), 0,1-2 % (p/p) de lignosulfonate de sodium, 0,01-1 % (p/p) de gomme xanthane, 0,1-1 % (p/p) de matière argileuse, de préférence sous forme d'attapulgite pulvérulente de granulométrie d90 < 30 μm, dans laquelle 90 % (p/p) de particules ont une taille inférieure à 30 μm. L'invention concerne également une composition de concentré d'engrais azote-soufre contenant 39 % (p/p) de soufre broyé de granulométrie inférieure à 100 μm, 60 % de solution aqueuse d'urée-nitrate d'ammonium 28-32 %, 0,5% (p/p) de lignosulfonate de sodium, 0,1 % (p/p) de gomme xanthane, 0,3 % (p/p) de matière argileuse sous forme d'attapulgite pulvérulente (silicate de magnésium et d'aluminium), la granulométrie étant d90 < 30 μm (90 % (p/p) des particules ont une taille inférieure à 30 μm).
PCT/IB2023/060705 2023-10-23 2023-10-24 Composition d'engrais à base de soufre en suspension, à base de solution d'urée-nitrate d'ammonium Pending WO2025088357A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL446473A PL248313B1 (pl) 2023-10-23 2023-10-23 Kompozycja koncentratu nawozu azotowo-siarkowego
PLP.446473 2023-10-23

Publications (1)

Publication Number Publication Date
WO2025088357A1 true WO2025088357A1 (fr) 2025-05-01

Family

ID=89222361

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2023/060705 Pending WO2025088357A1 (fr) 2023-10-23 2023-10-24 Composition d'engrais à base de soufre en suspension, à base de solution d'urée-nitrate d'ammonium

Country Status (2)

Country Link
PL (1) PL248313B1 (fr)
WO (1) WO2025088357A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014009326A1 (fr) * 2012-07-09 2014-01-16 Shell Internationale Research Maatschappij B.V. Procédé pour la préparation d'une émulsion de particules de soufre élémentaire
CN107001165A (zh) * 2014-12-19 2017-08-01 国际壳牌研究有限公司 用于制备含硫土壤改进剂的方法
CN107344903A (zh) * 2017-06-29 2017-11-14 新疆慧尔农业集团股份有限公司 一种喷滴灌桑莄草的专用套餐肥及其施用方法
CN107922281A (zh) * 2015-09-04 2018-04-17 国际壳牌研究有限公司 尿素硝酸铵肥料

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4762546A (en) * 1987-04-13 1988-08-09 Tennessee Valley Authority Production of high-grade nitrogen-sulfur suspension fertilizers
RO121734B1 (ro) * 2002-06-17 2008-03-28 Norsk Hydro Asa Îngrăşământ pe bază de uree şi sulf elementar, şi procedeu de obţinere a acestuia
EP3245177B1 (fr) * 2015-01-16 2020-11-18 Stoller Enterprises, Inc. Mélange fluide comprenant du soufre élémentaire et de l'argile hydratée et son procédé de production
PL242853B1 (pl) * 2021-11-02 2023-05-02 Kopalnie Dolomitu Spolka Akcyjna W Sandomierzu Sposób wytwarzania nawozu siarkowego dolistnego

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014009326A1 (fr) * 2012-07-09 2014-01-16 Shell Internationale Research Maatschappij B.V. Procédé pour la préparation d'une émulsion de particules de soufre élémentaire
CN107001165A (zh) * 2014-12-19 2017-08-01 国际壳牌研究有限公司 用于制备含硫土壤改进剂的方法
CN107922281A (zh) * 2015-09-04 2018-04-17 国际壳牌研究有限公司 尿素硝酸铵肥料
CN107344903A (zh) * 2017-06-29 2017-11-14 新疆慧尔农业集团股份有限公司 一种喷滴灌桑莄草的专用套餐肥及其施用方法

Also Published As

Publication number Publication date
PL446473A1 (pl) 2025-04-28
PL248313B1 (pl) 2025-11-24

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