WO2018232479A1 - Composition liquide hautement concentrée comprenant du soufre élémentaire et procédé de revêtement d'engrais au moyen de cette composition liquide hautement concentrée - Google Patents

Composition liquide hautement concentrée comprenant du soufre élémentaire et procédé de revêtement d'engrais au moyen de cette composition liquide hautement concentrée Download PDF

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Publication number
WO2018232479A1
WO2018232479A1 PCT/BR2018/050104 BR2018050104W WO2018232479A1 WO 2018232479 A1 WO2018232479 A1 WO 2018232479A1 BR 2018050104 W BR2018050104 W BR 2018050104W WO 2018232479 A1 WO2018232479 A1 WO 2018232479A1
Authority
WO
WIPO (PCT)
Prior art keywords
sulfur
composition according
highly concentrated
sodium
microns
Prior art date
Application number
PCT/BR2018/050104
Other languages
English (en)
Portuguese (pt)
Inventor
Ubirajara PERON
Glauco Mariano TEIXEIRA
Juliana Da Silva GOMES
Camille Nunes LEITE
Original Assignee
Adfert Aditivos Indústria E Comércio Ltda.
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 Adfert Aditivos Indústria E Comércio Ltda. filed Critical Adfert Aditivos Indústria E Comércio Ltda.
Priority to MA47665A priority Critical patent/MA47665B1/fr
Publication of WO2018232479A1 publication Critical patent/WO2018232479A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B17/00—Sulfur; Compounds thereof
    • 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
    • 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

Definitions

  • the rate of chemical reaction with the phosphates is increased, which may reduce plant availability of some micronutrients because the micronutrients remain in the phosphate granules.
  • US4377406 or US4762546 have the disadvantage that the sulfates are very mobile in the soil and therefore leachable.
  • the elemental sulfur however, is not leached, as are sulfates. It is, therefore, more advantageous to have the sulfur present in the elemental form.
  • sulfur incorporation in the form of elemental sulfur is advantageous to fertilizers containing or not sulfur.
  • the sulfur is melted by the heat provided by the preheated particles of the fertilizer, producing a poorly homogeneous coating on the fertilizer particles.
  • the homogeneous coating is visually observed in the granules of fertilizers found in the field, due to temperature gradients observed during the coating process, poor anchoring of the sulfur on the surface of the granules and low malleability of the sulfur, ie these facts provide heterogeneity in fertilizer granules and / or losses by handling and transport.
  • US 3333939 teaches a process for the preparation of sulfur-containing fertilizer particles in which the sulfur is dispersed throughout the particles.
  • the ammonia and the phosphoric acid are allowed to react to form the ammonium phosphate.
  • the ammonium phosphate formed is fed to a granulator in which it is mixed with urea and dry sulfur.
  • the granules thus obtained are dried in a drier.
  • the second process has the disadvantage of requiring the handling of solid sulfur, and the handling and grinding of solid sulfur are highly dangerous due to the formation of dust and the risk of explosions.
  • US5571303 relates to a process for the manufacture of fertilizers in which they are first reacted with ammonia, water and phosphoric acid to form ammonium phosphate. Thereafter, the ammonium / water phosphate mixture is mixed with molten sulfur. The mixture thus obtained and is maintained at temperatures of 120-150 2 C until granulation.
  • One disadvantage of this process is that, because of the previous formation of the ammonium phosphate, a lot of water is required to keep the salt dissolved, in addition to a solid ammonium phosphate being formed when relatively small amounts of water are used. Another point is the high temperature of the mixture during the process, which generates energy costs and the same risks shown previously.
  • WO 2008/024007 discloses a sulfur fertilizer, either in the form of globular granules or in the form of pellets which constitute solid liquid sulfur mixtures, bentonite, additional components and microelements favorable fertilizers, i.e. characterized by their content of 60-95% sulfur, 4-20% bentonite and 1-8% lignosulfonate.
  • Lignosulfonate is incorporated into the sulfur fertilizer molecules in order to allow the formation of granules or pellets that facially disperse in contact with soil moisture into the sulfur molecules, which have a particle size much smaller than fertilizers of this type.
  • GB2292140 also discloses sulfur / bentonite fertilizer compositions in which 1-30% by weight of a binder material, such as a lignosulfonate, may be added for the purpose of forming granules suitable for application of the sulfur in the soil.
  • a binder material such as a lignosulfonate
  • WO90 / 03350 discloses a sulfur-based chemical soil broker in the form of pellets for agricultural use, said product comprising airborne sulfur powder, at least 3% by weight of an inert product selected from the group consisting of clay , bentonite, kaolin and mixtures thereof, at least 5% of a wetting agent, said components being mixed with one another and subjected to wet extrusion and subsequent drying to obtain the pellets.
  • Said wetting agent may be a lignin sulfonate.
  • WO 90/03350 relates to the handling of sulfur powder which is extruded, which shows the same risks of accidents.
  • the aim of the present invention is to address the need for a product with a lower risk of sulfur handling problems in powder for incorporation into mineral, organic, inorganic and organomineral fertilizers.
  • the present invention describes a product (formula and process) and an application technology for producing fertilizers coated with elemental sulfur or in other forms containing or not in their composition macronutrients primary and / or secondary or micronutrients, essentially free non-greasy, free-flowing or non-blocking, friction-resistant or abrasion-resistant coatings which have no type of polymeric or non-polymeric top coat, thus having a gradual and proportional release depending on the soil conditions.
  • the present invention provides a product having a reduced particle size, less than 50 microns, which in turn has a favored conversion and, consequently, provides greater plant availability.
  • a formula, process for manufacturing the highly concentrated solution and a system for applying this solution to the surface of the fertilizer granule which may or may not contain an initial amount of sulfur in its formulation, production and application.
  • the highly concentrated liquid composition containing elemental sulfur comprises:
  • macronutrients and micronutrients that may be present in the formulation we have as macronutrients: phosphorus, potassium, calcium, sulfur, nitrogen and magnesium; and as micronutrients: iron, zinc, copper, manganese, selenium, chromium, iodine, fluorine, arsenic, boron, molybdenum, cobalt, tin, nickel, vanadium and silicon which may be associated depending on the need.
  • said formulation may further comprise macronutrients, micronutrients, surfactants, biocides, pH adjusters, dispersants, defoamers, thickeners, among others.
  • macronutrients there may be at least one of: phosphorus, potassium, calcium, sulfur, nitrogen and magnesium, which may be associated depending on the need.
  • Fig. 1 shows view 1 of the application plant of the highly concentrated solution.
  • Fig. 2 shows view 2 of the application plant of the highly concentrated solution.
  • Fig. 3 shows a first detailed view of the highly concentrated solution delivery system.
  • Fig. 4 shows a second detailed view of the highly concentrated solution delivery system.
  • Fig. 6 is a photograph of the highly concentrated solution application system in a second view.
  • micronutrients there may be at least one of iron, zinc, copper, manganese, selenium, chromium, iodine, fluorine, arsenic, boron, molybdenum, cobalt, tin, nickel, vanadium and silicon, which may be associated depending on the need.
  • Said surfactant is at least one of: 6 EO isodecyl alcohol, 6 EO isotridecyl alcohol, 8 EO isotridecyl alcohol, 9 EO isotridecyl alcohol, 10 EO isotridecyl alcohol, 12 EO isotridecyl alcohol, 6 EO lauryl alcohol, lauryl alcohol 7 EO, lauryl alcohol 9 EO 13.4, lauryl alcohol 10 EO, castor oil 30, castor oil 36 EO, castor oil 40 EO, hydrogenated castor oil 40 EO, ethoxylated nonylphenol 8 EO, nonylphenol ethoxylated 9.5 EO , ethoxylated nonylphenol 10 EO, among others.
  • Said pH adjuster is at least one of: sodium hydroxide, potassium hydroxide, ammonium hydroxide, monoethanolamine, diethanolamine, triethanolamine, among others.
  • Said biocide is at least one of: compounds and / or compositions of 5-chloro-2-methyl-4-isothiazolin- 3-one, 2-methyl-4-isothiazolin-3-one, 1,2-benzoisothiazolinone, isoinolinone, aldehydes, among others.
  • Said thickener is at least one of: carboxymethylcellulose, pectin, gellan gum, konjac gum, gum arabic, xanthan gum, clay, modified clay, sodium bentonite, calcium bentonite, guar gum, alginate, agar agar, among others.
  • said thickener is sodium bentonite, among others.
  • Said dispersant is at least one of: sodium sulfonate, sodium naphthalene sulfonate, sodium polynaphthalene sulfonate, sulfonated polymelamines, aromatic polymers, organic polymers, sodium lignosulfonate, condensate alkyl naphthalene sulfonate and sodium lignosulfonate, condensed sodium naphthalene sulfonate, acrylic polymer solution, among others.
  • Said antifoam is at least one of: emulsified copolymer organosiloxane, polydimethylsiloxane, silicone emulsion, among others.
  • formulation claimed by the present invention is comprised of:
  • Regulators of pH 0,1 - 2,0% The formulation requires particle size control to have the maximum particle diameter in microns of approximately 5 microns and a maximum of approximately 250 microns.
  • particles from about 5 microns to about 100 microns are preferred, particles of approximately 0.5 microns to about 20 microns are still more particularly preferred.
  • the formulation intended by the present invention has the following characteristics:
  • Exemplifying compounds include phosphates, such as:
  • MAP monoammonium phosphate
  • DAP diammonium phosphate
  • - nitrates such as: ammonium nitrate and potassium nitrate
  • - sulfates such as: ammonium sulphate, magnesium sulphate and potassium sulphate
  • chlorides such as: potassium chloride, limestone, dolomite
  • the step of adding all the components of the formulation to produce a highly concentrated suspension of elemental sulfur, whether or not containing other macronutrients or micronutrients in the composition is presented in a reduction system of the particle size, which is capable of guaranteeing a greater stability to the formulation and a greater efficiency of conversion and, consequently, absorption by the plants.
  • a high shear system should be used, in which it is possible to reduce the particle size on the nanoparticle scale, depending on the need. In this case, it would be necessary to adjust the process time to obtain the desired particle size.
  • the present invention further describes an innovative system for applying said formulation to the surface of the fertilizer granules.
  • drying takes place throughout the spraying process, said drying consisting of an air flow tangential to the rotation of the fertilizer,
  • drying can be carried out by means of heat associated with or not at a reduction of the ambient pressure during the application.
  • the process of applying the highly concentrated liquid solution of elemental sulfur containing or not in the composition other macronutrients or micronutrients maintains its final efficiency and quality due to the fact that it is atomized and applied tangentially at high speed, which causes a penetration in porosity and natural roughness of substrates having similarity to electrostatic painting processes.

Abstract

La présente invention concerne le mode de revêtement de grains d'engrais avec une solution de soufre hautement concentrée en élément d'intérêt. L'invention concerne également une méthode d'application innovante pour ajouter la solution de soufre en doses variées pour présenter la teneur nécessaire pour le client, ainsi que l'utilisation de ces engrais contenant du soufre pour cultiver des produits agricoles dans des sols pauvres en soufre. En outre, la présente invention concerne des produits agricoles à appliquer sur des sols, notamment sur des sols pauvres en soufre nécessitant un traitement avec des engrais contenant du soufre selon la présente invention. La présente invention permet l'utilisation associée de soufre élémentaire, ou provenant d'autres sources, en combinaison avec d'autres éléments qui peuvent être des macronutriments ou des micronutriments.
PCT/BR2018/050104 2017-06-22 2018-04-16 Composition liquide hautement concentrée comprenant du soufre élémentaire et procédé de revêtement d'engrais au moyen de cette composition liquide hautement concentrée WO2018232479A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MA47665A MA47665B1 (fr) 2017-06-22 2018-04-16 Composition liquide hautement concentrée comprenant du soufre élémentaire et procédé de revêtement d'engrais au moyen de cette composition liquide hautement concentrée

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BR102017013603-5A BR102017013603A2 (pt) 2017-06-22 2017-06-22 composição líquida altamente concentrada compreendendo enxofre elementar, e processo de recobrimento de fertilizantes por meio da composição líquida altamente concentrada
BRBR1020170136035 2017-06-22

Publications (1)

Publication Number Publication Date
WO2018232479A1 true WO2018232479A1 (fr) 2018-12-27

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PCT/BR2018/050104 WO2018232479A1 (fr) 2017-06-22 2018-04-16 Composition liquide hautement concentrée comprenant du soufre élémentaire et procédé de revêtement d'engrais au moyen de cette composition liquide hautement concentrée

Country Status (3)

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BR (1) BR102017013603A2 (fr)
MA (1) MA47665B1 (fr)
WO (1) WO2018232479A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4196440A4 (fr) * 2020-08-17 2024-03-20 Hiteshkumar Anilkant Doshi Composition agricole organique

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372872A (en) * 1981-02-17 1983-02-08 Union Oil Company Of California Sulfur suspensions
US5152821A (en) * 1988-02-01 1992-10-06 Hi-Fert Pty. Ltd. Addition of supplemental macro & micro nutrients to granular phosphatic fertilizers
CA1336137C (fr) * 1988-02-01 1995-07-04 Karl Heinrich Walter Addition d'un supplement de macro-et de micronutriments a des engrais phosphates granules
CA2164547A1 (fr) * 1994-12-26 1996-06-27 Shmuel Stern Methode pour l'obtention de fertilisants sulfures
WO2002090294A1 (fr) * 2001-05-09 2002-11-14 Summit-Quinphos (Nz) Limited Particules d'uree enrobees de soufre au moyen de soufre provenant d'un sol humide
BR0316161A (pt) * 2002-11-14 2005-09-27 Shell Int Research Processo para fabricação de fertilizantes contendo enxofre, fertilizantes contendo enxofre, uso de fertilizantes contendo enxofre, e, produtos agrìcolas
BRPI1011638A2 (pt) * 2009-05-07 2016-03-22 Shell Int Research processo para preparar um fertilizante contendo enxofre elementar
CN106045684A (zh) * 2016-05-31 2016-10-26 湖北富邦科技股份有限公司 一种自备防结功能的含硫磷铵肥料及其生产方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4372872A (en) * 1981-02-17 1983-02-08 Union Oil Company Of California Sulfur suspensions
US5152821A (en) * 1988-02-01 1992-10-06 Hi-Fert Pty. Ltd. Addition of supplemental macro & micro nutrients to granular phosphatic fertilizers
CA1336137C (fr) * 1988-02-01 1995-07-04 Karl Heinrich Walter Addition d'un supplement de macro-et de micronutriments a des engrais phosphates granules
CA2164547A1 (fr) * 1994-12-26 1996-06-27 Shmuel Stern Methode pour l'obtention de fertilisants sulfures
WO2002090294A1 (fr) * 2001-05-09 2002-11-14 Summit-Quinphos (Nz) Limited Particules d'uree enrobees de soufre au moyen de soufre provenant d'un sol humide
BR0316161A (pt) * 2002-11-14 2005-09-27 Shell Int Research Processo para fabricação de fertilizantes contendo enxofre, fertilizantes contendo enxofre, uso de fertilizantes contendo enxofre, e, produtos agrìcolas
BRPI1011638A2 (pt) * 2009-05-07 2016-03-22 Shell Int Research processo para preparar um fertilizante contendo enxofre elementar
CN106045684A (zh) * 2016-05-31 2016-10-26 湖北富邦科技股份有限公司 一种自备防结功能的含硫磷铵肥料及其生产方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4196440A4 (fr) * 2020-08-17 2024-03-20 Hiteshkumar Anilkant Doshi Composition agricole organique

Also Published As

Publication number Publication date
BR102017013603A2 (pt) 2019-01-15
MA47665B1 (fr) 2021-02-26
MA47665A1 (fr) 2020-08-31

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