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WO2025141411A1 - Engrais à base de calcium, d'azote, de potassium et de soufre complexe et durable à libération lente - Google Patents

Engrais à base de calcium, d'azote, de potassium et de soufre complexe et durable à libération lente Download PDF

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Publication number
WO2025141411A1
WO2025141411A1 PCT/IB2024/062904 IB2024062904W WO2025141411A1 WO 2025141411 A1 WO2025141411 A1 WO 2025141411A1 IB 2024062904 W IB2024062904 W IB 2024062904W WO 2025141411 A1 WO2025141411 A1 WO 2025141411A1
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WO
WIPO (PCT)
Prior art keywords
fertilizer
fertilizer composition
sulfate
aspects
potassium
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/IB2024/062904
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English (en)
Inventor
Aghaddin Mamedov
Mohamed AL-RABHI
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.)
SABIC Agri Nutrients Co
Original Assignee
SABIC Agri Nutrients Co
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 SABIC Agri Nutrients Co filed Critical SABIC Agri Nutrients Co
Publication of WO2025141411A1 publication Critical patent/WO2025141411A1/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
    • C05C5/00—Fertilisers containing other nitrates
    • C05C5/04—Fertilisers containing other nitrates containing calcium nitrate

Definitions

  • Soil nutrients such as nitrogen, phosphorus, potassium, and sulfur, as well as trace elements such as iron, zinc, copper, calcium, and magnesium, are useful for achieving fostering agriculture and growth of plants.
  • fertilizers have been developed to help replace the depleted vital nutrients.
  • Application of a fertilizer does not always provide the full amount of the nutrients in the fertilizer to the plant within a short period of time.
  • Plants such as crop plants, need nutrients at least over the entire growth and maturation period for the plant.
  • fertilizers when applied to a soil, disperse, are degraded, or are taken up within a short period of time after application.
  • fertilizers can be applied multiple times to the same plants or slow release fertilizers can be used.
  • Some approaches to slow release fertilizers include polymer coating a fertilizer core.
  • many polymer coatings are expensive and/or will undesirably build up in the soil over time after repeated applications.
  • Some approaches to slow the release of fertilizers include coating or mixing with insoluble metal oxides, such as MgO and CaO.
  • the solution resides in providing a fertilizer comprising calcium (Ca), nitrogen (N), potassium (K), and sulfur (S), present as calcium nitrate (Ca(NO 3 ) 2 ), urea sulfate (H 2 SO 4 ⁇ CO(NH 2 ) 2 ), and potassium sulfate (K 2 SO 4 ).
  • the calcium nitrate (Ca(NO 3 ) 2 ) at least partially binds and/or at least partially surrounds the urea sulfate (H2SO4 ⁇ CO(NH2)2) and/or the potassium sulfate (K2SO4).
  • the calcium nitrate forms a continuous phase in the fertilizer composition.
  • the binder containing compositions have additional advantages. For example, compositions that contain bentonite clay mechanically strengthen the composition, which can improve product quality during storage, transportation, and application. Further, these compositions that contain urea sulfate can be less hydroscopic than
  • the fertilizer composition further comprises a binder.
  • the binder comprise a clay.
  • the clay comprises bentonite.
  • the binder is homogenously distributed throughout the fertilizer composition.
  • the binder is at least partially surrounded and/or bound by the calcium nitrate (Ca(NO 3 ) 2 ).
  • the binder at least partially surrounds and/or binds the calcium nitrate (Ca(NO3)2), urea sulfate (H2SO4 ⁇ CO(NH2)2), and/or potassium sulfate (K2SO4).
  • the binder and the combination of calcium nitrate (Ca(NO3)2), urea sulfate (H 2 SO 4 ⁇ CO(NH 2 ) 2 ), and potassium sulfate (K 2 SO 4 ) are comprised at a weight ratio between approximately 0.1:10 to 5:10, such as 0.1:10, 0.2:10, 0.3:10, 0.4:10, 0.5:10, 0.6:10, 0.7:10, 0.8:10, 0.9:10, 1:10, 1.1:10, 1.2:10, 1.3:10, 1.4:10, 1.5:10, 2:10, 3:10, 4:10, or 5:10.
  • the composition further comprises urea (NH 2 CONH 2 ), calcium sulfate (CaSO4), sulfuric acid (H2SO4), potassium chloride (KCl), hydrochloric acid (HCl), and/or nitric acid (HNO3).
  • urea NH 2 CONH 2
  • CaSO4 calcium sulfate
  • sulfuric acid H2SO4
  • potassium chloride KCl
  • hydrochloric acid HCl
  • HNO3 nitric acid
  • at least a portion of the nitric acid is derived from a renewable energy source or a process that uses a renewable energy source.
  • the renewable energy source comprises a solar, wind, hydro, tidal, geothermal, and/or biomass renewable energy.
  • the fertilizer is produced by the method of generating a fertilizer product disclosed herein.
  • the final product may contain a mixture of the above composition chemicals, including, but not limited to any one of Ca(NO3)2, H2SO4 ⁇ CO(NH2)2, and K2SO4.
  • the sulfuric acid produced in the production of calcium nitrate is at least partially used to produce the urea sulfate and/or the potassium sulfate.
  • the reactions are performed in one or more than one container. In some aspects, the reactions are performed simultaneously or sequentially or a mixture of both.
  • Embodiments of the disclosure are improvements to known fertilizer, including by involving the use of a slow-release agent in a fertilizer comprising nitrogen (N), sulfur (S), and metals such as calcium (Ca) and potassium (K).
  • Current slow-release fertilizer products often use physical intervention to slow the release of the fertilizer, such as by coating the fertilizer with a polymer insoluble material to slow the fertilizer’s release.
  • Current slow-release fertilizers may also employ enzymatic inhibitors, such as urease inhibitors or nitrification inhibitors, to slow the utilization of the fertilizer.
  • the fertilizers described herein may also contain physical interventions and/or inhibitors, the fertilizers described herein do not always require such measures to produce a slow-release nutrient fertilizer composition.
  • the mixture in some aspects, comprises a binder.
  • the binder can comprise a slow-release agent.
  • the binder in some aspects, comprises an immediate-release agent.
  • the immediate-release agent can comprise calcium nitrate, calcium sulfate, nitric acid, sulfuric acid, urea sulfate, potassium sulfate and/or potassium chloride.
  • the fertilizer contains at least any one of, at most any one of, equal to any one of, or between any two of 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, or 20 wt.% nitrogen (N), at least any one of, at most any one of, equal to any one of, or between any two of 9, 10, 11, 12, 13, 14, 15, 16, or 17 wt.% sulfur (S), at least any one of, at most any one of, equal to any one of, or between any two of 7, 8, 9, 10, 11, or 12 wt.% potassium (K), and/or 12, 13, 14, 15, 16, 17, or 18 wt.% calcium (Ca).
  • the fertilizer does not contain a polymer.
  • the fertilizer further comprises a polymer.
  • aspects 1 are a fertilizer composition comprising a calcium nitrate (Ca(NO 3 ) 2 ), urea sulfate (H2SO4 ⁇ CO(NH2)2), and potassium sulfate (K2SO4), wherein the calcium nitrate (Ca(NO3)2) at least partially binds and/or at least partially surrounds the urea sulfate (H 2 SO 4 ⁇ CO(NH 2 ) 2 ) and/or the potassium sulfate (K 2 SO 4 ).
  • Ca(NO 3 ) 2 calcium nitrate
  • H2SO4 ⁇ CO(NH2)2 urea sulfate
  • K2SO4 potassium sulfate
  • Aspect 2 is the fertilizer composition of aspect 1, wherein the calcium nitrate forms a continuous phase.
  • Aspect 3 is the fertilizer composition of any one of aspects 1 and 2, wherein the composition comprises 12 to 18 wt.% nitrogen (N), 10 to 15 wt.% sulfur (S), 8 to 10 wt.% potassium (K), and 14 to 17 wt.% calcium (Ca).
  • Aspect 4 is the fertilizer composition of any one of aspects 1 to 3, wherein the composition further comprises a binder.
  • Aspect 5 is the fertilizer composition of aspect 4, wherein the binder comprises a clay.
  • Aspect 6 is the fertilizer composition of aspect 5, wherein the clay comprises bentonite.
  • Aspect 7 is the fertilizer composition of any one of aspects 4 to 6, wherein the binder is homogenously distributed throughout the fertilizer composition.
  • Aspect 8 is fertilizer composition of any one of aspects 1 to 7, wherein the composition further comprises urea (NH2CONH2), calcium sulfate (CaSO4), sulfuric acid (H2SO4), potassium chloride (KCl), hydrochloric acid (HCl), and/or nitric acid (HNO3).
  • Aspect 9 is the fertilizer composition of aspect 8, wherein the calcium sulfate is in the form of a waste gypsum.
  • Aspect 10 is the fertilizer composition of aspect 9, wherein the waste gypsum is phosphogypsum or red gypsum.
  • Aspect 11 is the fertilizer composition of any one of aspects 8 to 10, wherein at least a portion of the nitric acid is derived from a renewable energy source and/or a process that uses a renewable energy source.
  • Aspect 12 is the fertilizer composition of aspect 11, wherein the renewable energy source comprises a solar, wind, hydro, tidal, geothermal, and/or biomass renewable energy.
  • Aspect 16 is the fertilizer composition of any one of aspects 1 to 15, wherein the fertilizer composition is a granular fertilizer.
  • Aspect 17 is a method of producing the fertilizer composition of any one of aspects 1 to 16, the method comprising the steps of: (a) contacting calcium sulfate with nitric acid to generate a first reaction product comprising calcium nitrate and sulfuric acid; (b) contacting the first reaction product with urea to generate a second reaction product comprising urea sulphate;
  • fertilizer is defined as a material applied to soils or to plant tissues to supply one or more plant nutrients essential or beneficial to the growth of plants and/or stimulants or enhancers to increase or enhance plant growth.
  • granule can include a solid material.
  • a granule can have a variety of different shapes, non-limiting examples of which include a spherical, a puck, an oval, a rod, an oblong, or a random shape.
  • particle can include a solid material less than a millimeter in its largest dimension.
  • the terms “particulate” or “powder” can include a plurality of particles.
  • A, B, and/or C includes: A alone, B alone, C alone, a combination of A and B, a combination of A and C, a combination
  • FIG.1 a schematic of a system and method for producing a fertilizer according to a non-limiting example of a system and method disclosed herein.
  • FIG.2 a schematic of a system and method for producing a fertilizer according to another non-limiting example of a system and method disclosed herein.
  • DETAILED DESCRIPTION OF THE INVENTION Certain aspects of the present disclosure provide benefits over existing fertilizers, including by having slow-release characteristics for nutrients comprising the fertilizer. Certain
  • the fertilizer comprises a urea sulfate (H2SO4 ⁇ CO(NH2)2), calcium nitrate (Ca(NO3)2), and/or potassium sulfate (K2SO4) which may be one composition and/or one homogenous mixture.
  • the calcium nitrate may act as a binder for the other components in the fertilizer.
  • the fertilizer my include a different or an additional binder.
  • the binder may include bentonite. Applicant has determined that the method reduces the process steps to generate the fertilizer product, which may minimizes the capital and/or operational expenditure. Moreover, there is an environmental benefits associated with this process due to the ability to utilize CaSO4 waste from phosphoric acid plant and/or use of SO4 ion from CaSO4.
  • the binder containing compositions have additional advantages. For example, compositions that contain bentonite clay mechanically strengthen the composition, which can improve product quality during storage, transportation, and application. Further, these compositions that contain urea sulfate can be less hydroscopic than a urea containing composition.
  • compositions herein with NO3 and/or calcium ions may provide NO3 and/or calcium to crops and/or regulate the pH of soil.
  • Fertilizer Certain embodiments herein concern a complex fertilizer comprising: a urea compound, such as a urea sulfate (H2SO4 ⁇ CO(NH2)2); a potassium compound such as potassium sulfate (K2SO4); and a calcium compound, such as Ca(NO3)2.
  • a complex fertilizer comprising: a urea compound, such as a urea sulfate (H2SO4 ⁇ CO(NH2)2); a potassium compound such as potassium sulfate (K2SO4); and a calcium compound, such as Ca(NO3)2.
  • Certain aspects involve synthesis of the nutrient complex using natural sources of ingredients of the fertilizer, such as CaSO4, HNO3, Ca(NO3)2, H2SO4, KCl, and NH2CONH2.
  • the complex fertilizer is a mixture that is a homogene
  • the fertilizer is a multiphase complex.
  • the fertilizer comprises amorphous phases made of components of the fertilizer.
  • the complex fertilizer further comprises a binder.
  • the fertilizer which may be a fertilizer granule, can contain a mixture containing calcium (Ca), potassium (K), sulfur (S) present as a sulfate, nitrogen (N) present as a nitrate and/or urea compound. The ratio of elements present in the fertilizer may be tailored to specific applications.
  • At least a portion of Ca can be present as calcium nitrate.
  • at least 90 wt. %, or at least 95 wt. %, or 90 wt. % to 100 wt. %, or at least any one of, at most any one of, equal to any one of, or between any two of 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 99.5, and 100 wt. % of the Ca in the mixture can be present as calcium nitrate, based on the total weight of Ca in the mixture.
  • the (H2SO4 ⁇ CO(NH2)2),, (K2SO4), and Ca(NO3)2 are formed at a temperature of at least, at most, equal to, or between any two of 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105, 106,

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Fertilizers (AREA)

Abstract

L'invention concerne un engrais contenant un mélange contenant du nitrate de calcium (Ca(NO3)2), du sulfate d'urée (H2SO4·CO(NH2)2) et/ou du sulfate de potassium (K2SO4). L'invention concerne également des procédés de fabrication et d'utilisation de l'engrais.
PCT/IB2024/062904 2023-12-27 2024-12-19 Engrais à base de calcium, d'azote, de potassium et de soufre complexe et durable à libération lente Pending WO2025141411A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US202363615133P 2023-12-27 2023-12-27
US63/615,133 2023-12-27

Publications (1)

Publication Number Publication Date
WO2025141411A1 true WO2025141411A1 (fr) 2025-07-03

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2024/062904 Pending WO2025141411A1 (fr) 2023-12-27 2024-12-19 Engrais à base de calcium, d'azote, de potassium et de soufre complexe et durable à libération lente

Country Status (1)

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WO (1) WO2025141411A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106748306A (zh) * 2017-02-21 2017-05-31 山东康德源农业科技有限公司 一种多功能药肥及其制备方法与应用
WO2021144193A2 (fr) * 2020-01-16 2021-07-22 Basf Se Mélanges comprenant un support solide comprenant un inhibiteur d'uréase et un autre support solide comprenant un inhibiteur de nitrification
WO2021144195A1 (fr) * 2020-01-16 2021-07-22 Basf Se Mélanges comprenant des inhibiteurs de nitrification et des supports

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106748306A (zh) * 2017-02-21 2017-05-31 山东康德源农业科技有限公司 一种多功能药肥及其制备方法与应用
WO2021144193A2 (fr) * 2020-01-16 2021-07-22 Basf Se Mélanges comprenant un support solide comprenant un inhibiteur d'uréase et un autre support solide comprenant un inhibiteur de nitrification
WO2021144195A1 (fr) * 2020-01-16 2021-07-22 Basf Se Mélanges comprenant des inhibiteurs de nitrification et des supports

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