WO2019140723A1 - Procédé de revêtement d'engrais au phosphate anti-humidité, anti-adhérence et anti-pulvérisation contenant des micronutriments du milieu ajoutés - Google Patents

Procédé de revêtement d'engrais au phosphate anti-humidité, anti-adhérence et anti-pulvérisation contenant des micronutriments du milieu ajoutés Download PDF

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Publication number
WO2019140723A1
WO2019140723A1 PCT/CN2018/075528 CN2018075528W WO2019140723A1 WO 2019140723 A1 WO2019140723 A1 WO 2019140723A1 CN 2018075528 W CN2018075528 W CN 2018075528W WO 2019140723 A1 WO2019140723 A1 WO 2019140723A1
Authority
WO
WIPO (PCT)
Prior art keywords
fertilizer
powder
active liquid
granular
calcium
Prior art date
Application number
PCT/CN2018/075528
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English (en)
Chinese (zh)
Inventor
孙金艳
王仁宗
Original Assignee
湖北富邦科技股份有限公司
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.)
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Publication date
Application filed by 湖北富邦科技股份有限公司 filed Critical 湖北富邦科技股份有限公司
Priority to MA47632A priority Critical patent/MA47632B1/fr
Publication of WO2019140723A1 publication Critical patent/WO2019140723A1/fr

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05B—PHOSPHATIC FERTILISERS
    • C05B1/00—Superphosphates, i.e. fertilisers produced by reacting rock or bone phosphates with sulfuric or phosphoric acid in such amounts and concentrations as to yield solid products directly
    • C05B1/02—Superphosphates
    • 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
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D1/00—Fertilisers containing potassium
    • C05D1/005—Fertilisers containing potassium post-treatment
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05D—INORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C; FERTILISERS PRODUCING CARBON DIOXIDE
    • C05D3/00—Calcareous fertilisers
    • C05D3/02—Calcareous fertilisers from limestone, calcium carbonate, calcium hydrate, slaked lime, calcium oxide, waste calcium products
    • 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

Definitions

  • the invention relates to the technical field of coating films, in particular to a moisture-proof anti-caking and powder-proof phosphate fertilizer coating method for adding medium and trace elements.
  • Phosphate fertilizer is often used as a cost-effective fertilizer for phosphorus and calcium in blended fertilizers.
  • phosphate fertilizer contains a small amount of free inorganic acid.
  • inorganic acid can promote the reuse of fixed nutrients in the soil, the crop grows better, but the free inorganic acid reacts with urea to form urea phosphate.
  • the urea phosphate has a low moisture absorption point and is easy to absorb moisture and even mud in the air. Therefore, when the phosphate fertilizer and the urea are used to prepare the blended fertilizer, the obtained fertilizer is easy to absorb moisture and form a mass, which cannot be used normally.
  • the object of the present invention is to provide a moisture-proof, anti-knot and anti-powder type phosphate fertilizer coating method for adding medium and trace elements, and the granular phosphate fertilizer treated by the method provides various kinds of medium and trace elements which can promote crop production.
  • the product after mixing does not absorb moisture, does not agglomerate, does not powder, completely solves the problem of blending phosphate fertilizer and urea, and promotes the development of the blended fertilizer industry.
  • a moisture-proof anti-caking and anti-micronized phosphate fertilizer coating method for adding medium and trace elements which is characterized by the following steps: placing blank granular fertilizer on the front end of the coating drum, in the disc or a mixer with mixing function Firstly, the active liquid which accounts for 10%-30% of the total mass of the granular fertilizer is sprayed on the surface of the granular fertilizer.
  • the powder reacts with the active liquid, and then sprays a layer of active liquid which accounts for 10%-60% of the total mass of the granular fertilizer on the surface of the granular fertilizer, so that the active liquid and the surface of the granular fertilizer are not reacted.
  • the body reacts again, and then the powder can be sprayed on the surface of the fertilizer again for reaction.
  • the number of coatings of the active liquid + powder can be adjusted by itself to make the barrier layer more solid and the coating effect is better. .
  • the phosphate fertilizer is heavy calcium, calcium magnesium phosphate fertilizer, superphosphate, calcium or heavy superphosphate.
  • the active liquid is phosphoric acid or sulfuric acid having a mass content of 40% to 85%.
  • the active liquid is a hydrogen phosphate, hydrogen sulfate or hydrogencarbonate having a mass content of 40% to 85%.
  • the powder comprises a calcium-containing magnesium phosphate fertilizer, a potassium silicon calcium fertilizer, a hydroxide, a carbonate, a basic carbonate and/or a nitrate;
  • sulfur-containing material natural gypsum, phosphogypsum, hemihydrate gypsum, anhydrite, magnesium sulfate, potassium sulfate, potassium magnesium sulfate, ammonium sulfate, zinc sulfate, and/or copper sulfate;
  • inorganic salts containing iron, manganese, boron, zinc, copper, molybdenum, silicon, and/or selenium including inorganic salts containing iron, manganese, boron, zinc, copper, molybdenum, silicon, and/or selenium.
  • the powder active ingredient has a mass content of 40% to 100%.
  • the powder has a mesh number of 200-2000 mesh.
  • the phosphate fertilizer obtained by the method has good moisture-proof, anti-knot and powder-proofing effects, and at the same time provides various kinds of medium and trace elements required for crop growth for the fertilizer, and enhances the fertilizer value.
  • 1 ton of blank granular superphosphate is placed at the front end of the coating drum.
  • 25% of the total mass of the superphosphate calcium fertilizer is sprayed on the surface of the particulate superphosphate, and the phosphoric acid is used in the particulate superphosphate fertilizer.
  • a layer of oxides containing 55% of the total mass of the superphosphate calcium fertilizer is sprayed on the surface of the granular superphosphate fertilizer to react the oxide with the phosphoric acid, and then sprayed on the surface of the granular superphosphate fertilizer.
  • the layer accounts for 35% of the total amount of particulate superphosphate fertilizer, and the coating is loose to the particles without obvious dust, that is, the treated moisture-proof granular fertilizer is obtained.
  • the oxide is magnesium oxide having an active ingredient content of 85% by mass, and the powder has a mesh number of 400 mesh; the phosphoric acid is phosphoric acid having a mass concentration of 64%.
  • the granular super-calcium phosphate fertilizer particles treated with the above-mentioned treatment are mixed with the granular urea by mass 1:1, and are left for 4 months without moisture absorption; the mass ratio of the super-calcium phosphate fertilizer to the granular urea without the above treatment is 1:1, and 2 is placed. Hours, the surface of the particulate superphosphate fertilizer mixture began to react to moisture absorption, and the particulate superphosphate fertilizer eventually agglomerated into agglomerates.
  • 1 ton of white granular calcium fertilizer is placed in the coated disc, firstly, the phosphoric acid on the surface of the granular calcium is 20% of the total mass of the granular calcium fertilizer, and the phosphoric acid is uniformly coated on the surface of the granular fertilizer.
  • the surface of the calcium fertilizer is sprayed with a layer of oxides which account for 50% of the total mass of the granular calcium fertilizer, so that the oxide reacts with the phosphoric acid, and then a layer of the total mass of the granular calcium fertilizer is sprayed on the surface of the granular monoammonium phosphate fertilizer.
  • the coating to the particles is loose and no obvious dust, that is, the treated moisture-proof granular fertilizer is obtained.
  • the oxide is calcium oxide having an active ingredient content of 85% by mass, and the powder has a mesh number of 600 mesh; and the phosphoric acid is a phosphoric acid having a mass concentration of 56%.
  • the granular calcium fertilizer and the granular urea which have been treated as described above are blended by mass 2:1, and are not absorbed for 3 months; the mass ratio of the granular calcium fertilizer to the granular urea which has not been treated as above is 2:1, and it is left for 2 hours.
  • the surface of the calcium fertilizer mixture began to react and absorb moisture, and the granular monoammonium phosphate fertilizer finally agglomerated into a mass.
  • 1 ton of blank granules of heavy superphosphate fertilizer is placed at the front end of the coating drum.
  • 15% of the total mass of the granular fertilizer is sprayed on the surface of the granule heavy superphosphate fertilizer, and the sulphuric acid is in the granular ammonium ammonium nitrate.
  • a layer of calcium magnesium phosphate fertilizer containing 70% of the total weight of the particulate heavy superphosphate fertilizer is sprayed on the surface of the granular heavy superphosphate to react the oxide in the calcium magnesium phosphate fertilizer with sulfuric acid, and then in the particle.
  • the surface of the heavy superphosphate fertilizer is sprayed with a layer of sulfuric acid which accounts for 50% of the total weight of the particulate heavy superphosphate fertilizer, and the coated film is loose and has no obvious dust, that is, the treated moisture-proof granular fertilizer is obtained.
  • the calcium magnesium phosphate fertilizer has an active ingredient content of 78% by mass of the oxide and 300 mesh of the powder; the sulfuric acid is sulfuric acid having a mass concentration of 60%.
  • the granules of the super-calcium phosphate and the granulated urea which have been treated as described above are blended in a mass ratio of 2:1 and left for 4 months without moisture absorption; the mass ratio of the super-superphosphated calcium phosphate fertilizer to the granular urea which has not been subjected to the above treatment is 2:1, and is placed 2 Hours, the surface of the particulate heavy superphosphate fertilizer mixture began to react to moisture absorption, and the granular fertilizer eventually agglomerated into agglomerates.
  • 1 ton of blank granular calcium magnesium phosphate fertilizer is placed at the front end of the coating drum.
  • the phosphoric acid on the surface of the granular calcium magnesium phosphate fertilizer is sprayed with 25% of the total mass of the calcium, magnesium and phosphorus fertilizer, and the phosphoric acid is coated on the surface of the granular calcium magnesium phosphate fertilizer.
  • After evenly spraying a layer of hydroxide on the surface of the fertilizer which accounts for 45% of the total mass of calcium, magnesium and phosphorus fertilizer, reacts the hydroxide with phosphoric acid, and then sprays a layer of calcium, magnesium and phosphate on the surface of the granular calcium, magnesium and phosphate fertilizer.
  • the hydroxide magnesium hydroxide having a mesh number of 500 mesh and an active component mass content of 85%, and the phosphoric acid is phosphoric acid having a mass concentration of 70%.
  • the granular calcium magnesium phosphate fertilizer treated with the above treatment is mixed with the granular urea by mass 1:2, and is not absorbed for 5 months; the mass ratio of the granular calcium magnesium phosphate fertilizer to the granular urea without the above treatment is 1:2, and the particles are placed for 2 hours.
  • the surface of the calcium magnesium phosphate fertilizer mixture began to react and absorb moisture, and the granular potassium fertilizer eventually agglomerated into a mass.

Landscapes

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

Abstract

L'invention concerne un procédé de revêtement d'engrais au phosphate anti-humidité, anti-adhérence et anti-pulvérisation contenant des micronutriments du milieu ajoutés Le procédé comprend les étapes suivantes consistant à: placer un engrais au phosphate vierge au niveau d'une extrémité avant d'un rouleau de revêtement, dans un disque ou un mélangeur ayant une fonction de mélange; une première pulvérisation d'une couche d'un liquide actif sur la surface de l'engrais; en premier lieu, pulvériser une couche d'un liquide actif sur la surface de l'engrais; et après que la surface de l'engrais granulaire est uniformément revêtue du liquide actif, pulvériser la surface de l'engrais granulaire avec une couche d'une poudre, faire réagir la poudre avec le liquide actif pour générer une couche d'une membrane barrière qui est insoluble dans l'eau ou légèrement soluble dans l'eau sur la surface de l'engrais granulaire, puis pulvériser une autre couche du liquide actif sur la surface de l'engrais granulaire, faire réagir le liquide actif avec la poudre à la surface de l'engrais granulaire, puis pulvériser la poudre sur la surface de l'engrais à nouveau pour créer une réaction, et ainsi de suite, le nombre de revêtements par ajout du liquide actif et de la poudre étant auto-ajusté en fonction de différentes conditions de revêtement d'engrais, de telle sorte que la couche barrière est plus solide, et l'effet de revêtement est meilleur. L'engrais au phosphate traité par le procédé présente des caractéristiques anti-humidité, anti-adhérence et anti-pulvérisation et fournit des micronutriments du milieu pour favoriser la croissance des cultures.
PCT/CN2018/075528 2018-01-19 2018-02-07 Procédé de revêtement d'engrais au phosphate anti-humidité, anti-adhérence et anti-pulvérisation contenant des micronutriments du milieu ajoutés WO2019140723A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MA47632A MA47632B1 (fr) 2018-01-19 2018-02-07 Procédé de revêtement d'engrais au phosphate anti-humidité, anti-adhérence et anti-pulvérisation contenant des micronutriments du milieu ajoutés

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201810053037.9 2018-01-19
CN201810053037.9A CN108358680A (zh) 2018-01-19 2018-01-19 一种添加中微量元素的防潮防结防粉化型磷酸盐肥料包膜方法

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WO2019140723A1 true WO2019140723A1 (fr) 2019-07-25

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CN (1) CN108358680A (fr)
MA (1) MA47632B1 (fr)
WO (1) WO2019140723A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112159277A (zh) * 2020-10-13 2021-01-01 辽宁拓展农业发展有限公司 一种具有无机肥隔离层的有机肥及其生产方法
CN114478128B (zh) * 2022-03-30 2023-02-21 深圳市芭田生态工程股份有限公司 包裹式防粉化添加剂和防粉化肥料及其制备方法

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CN1040781A (zh) * 1989-04-12 1990-03-28 郑州工学院 缓效包裹肥料
WO1994026680A1 (fr) * 1993-05-07 1994-11-24 The University Of New England Procede ameliore d'enrobage de granules d'engrais
CN1246840A (zh) * 1997-02-07 2000-03-08 卡吉尔公司 用于颗粒无机物的减尘剂
CN1974493A (zh) * 2006-09-05 2007-06-06 河南农业大学 大田专用缓/控释肥料及其生产方法
CN103724062A (zh) * 2012-10-10 2014-04-16 刘书起 一种大颗粒无机包膜肥料及其生产方法
CN105110890A (zh) * 2015-07-31 2015-12-02 深圳市芭田生态工程股份有限公司 一种防结块肥料及其制备方法
CN107500879A (zh) * 2017-09-05 2017-12-22 湖北富邦科技股份有限公司 一种阻隔颗粒过磷酸盐与颗粒尿素接触的方法

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CN1221495C (zh) * 2004-01-12 2005-10-05 山东新红日新肥业有限公司 喷浆造粒生产高氮多彩复合肥的方法
CN101445400B (zh) * 2007-11-26 2013-04-24 南京理工大学 含硝酸铵颗粒肥料抗爆改性的表面处理方法
CN103204731A (zh) * 2012-01-13 2013-07-17 南京理工大学 无机包膜型缓释化肥及其制备方法
CN103073356B (zh) * 2013-02-06 2014-03-12 辽宁施壮肥业有限公司 含有多种元素的缓释螯合复合肥料生产方法

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1040781A (zh) * 1989-04-12 1990-03-28 郑州工学院 缓效包裹肥料
WO1994026680A1 (fr) * 1993-05-07 1994-11-24 The University Of New England Procede ameliore d'enrobage de granules d'engrais
CN1246840A (zh) * 1997-02-07 2000-03-08 卡吉尔公司 用于颗粒无机物的减尘剂
CN1974493A (zh) * 2006-09-05 2007-06-06 河南农业大学 大田专用缓/控释肥料及其生产方法
CN103724062A (zh) * 2012-10-10 2014-04-16 刘书起 一种大颗粒无机包膜肥料及其生产方法
CN105110890A (zh) * 2015-07-31 2015-12-02 深圳市芭田生态工程股份有限公司 一种防结块肥料及其制备方法
CN107500879A (zh) * 2017-09-05 2017-12-22 湖北富邦科技股份有限公司 一种阻隔颗粒过磷酸盐与颗粒尿素接触的方法

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CN108358680A (zh) 2018-08-03
MA47632B1 (fr) 2021-01-29
MA47632A1 (fr) 2020-06-30

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