WO2019015067A1 - Procédé de préparation d'urée résistante à l'humidité spécifiquement pour un engrais mélangé - Google Patents

Procédé de préparation d'urée résistante à l'humidité spécifiquement pour un engrais mélangé Download PDF

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Publication number
WO2019015067A1
WO2019015067A1 PCT/CN2017/102066 CN2017102066W WO2019015067A1 WO 2019015067 A1 WO2019015067 A1 WO 2019015067A1 CN 2017102066 W CN2017102066 W CN 2017102066W WO 2019015067 A1 WO2019015067 A1 WO 2019015067A1
Authority
WO
WIPO (PCT)
Prior art keywords
urea
moisture
proof
fertilizer
magnesium oxide
Prior art date
Application number
PCT/CN2017/102066
Other languages
English (en)
Chinese (zh)
Inventor
王仁宗
操素芬
刘裕
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.)
Filing date
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 MA47625A priority Critical patent/MA47625B1/fr
Publication of WO2019015067A1 publication Critical patent/WO2019015067A1/fr

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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
    • 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
    • C05G3/90—Mixtures of one or more fertilisers with additives not having a specially fertilising activity for affecting the nitrification of ammonium compounds or urea in the soil

Definitions

  • This invention relates to the field of blended fertilizer manufacture. It is mainly a preparation method of special moisture-proof urea for blending fertilizer.
  • China is a big agricultural country, and various fertilizers, especially fertilizers, play an indelible contribution to China's food security.
  • the acidic character of calcium is that it cannot be contacted with urea, because the residual sulfuric acid in the calcium will react with urea to form urea sulfate, which is liquid, which causes farmers to use common calcium as a phosphorus source and urea and potassium fertilizer to prepare.
  • urea sulfate which is liquid, which causes farmers to use common calcium as a phosphorus source and urea and potassium fertilizer to prepare.
  • the fertilizer becomes wet and becomes agglomerated and cannot be fertilized.
  • the invention provides a preparation method of special moisture-proof urea for blending fertilizer, wherein the urea obtained by the method can be stably mixed with an acidic fertilizer such as calcium phosphate, does not absorb moisture, does not change tide, and greatly broadens the blending fertilizer.
  • an acidic fertilizer such as calcium phosphate
  • the invention discloses a preparation method of special moisture-proof urea for blending fertilizer, which is characterized in that: granular urea is input into a front end of a coating drum, a disc or a mixer having a mixing function, and a special moisture-proof agent is sprayed on the surface of the granular urea; In the rear end of the coating drum, in the disc or in the mixer with mixing function, a layer of modified magnesium oxide powder is sprayed to prepare a special moisture-proof urea for the blending fertilizer.
  • the granular urea is one or a mixture of two or more of granular urea prepared by a high tower, granular urea prepared by a drum apparatus, granular urea prepared by fluidized bed granulation, and granular urea prepared by an extrusion process.
  • the special moisture-proofing agent is HISOFT FA 130 of Hubei Fubon Technology Co., Ltd., which is composed of 10-30% dextrin, 5-50% polyethylene glycol 4000 and 30-80% by weight. a mixture of water.
  • the modified magnesium oxide powder is prepared by uniformly mixing the original magnesia powder with a mixture of one or more of paraffin wax, vegetable oil or mineral oil having a mass of 0.5-10% by mass of magnesium oxide, and grinding to 200-2000 mesh, that is, the modified magnesium oxide powder is obtained.
  • the wax has a melting point of 20 ° C - 120 ° C.
  • the urea granules obtained by the method are loose, and no additional fertilizer anti-caking agent is needed;
  • the two-layer high-efficiency moisture-proof isolation treatment can completely avoid the contact of urea with calcium or other fertilizer medium with high water content to achieve the ideal isolation effect.
  • urea-coated drum On the front end of the urea-coated drum, 1 kg of urea granules were sprayed with 0.5 kg of HISOFT FA 130 produced by Hubei Fubon Technology Co., Ltd. (20% dextrin, 20% polyethylene glycol 4000 by weight percent) a mixture with 60% water). At the rear end of the coating drum, 10 kg of the prepared modified magnesium oxide powder is sprayed to obtain a special moisture-proof urea for the blended fertilizer.
  • the modified magnesium oxide powder formula: the original magnesium oxide powder, and the total amount of the original magnesium oxide powder A 5% amount of paraffin wax having a melting point of 60 ° C was ground to a mesh size of 600 mesh.
  • the mass ratio of calcium perphosphate is 1:1, and it is placed for 5 minutes.
  • the fertilizer mixture precipitates a large amount of water, the material becomes damp and viscous, and the fertilizer eventually agglomerates and becomes a whole piece.
  • the mass ratio of calcium perphosphate is 1:1, and it is placed for 5 minutes.
  • the fertilizer mixture precipitates a large amount of water, the material becomes damp and viscous, and the fertilizer eventually agglomerates and becomes a whole piece.
  • the modified magnesium oxide powder formula: the original powder of magnesia, the mixture of 3% of the total amount of the original magnesia powder, the paraffin wax having a melting point of 70 ° C: soybean vegetable oil: mineral oil (carbon chain in C16-C35 The mineral oil is prepared in a ratio of 1:1:1, and is ground and modified to a mesh size of 200 mesh.
  • the mass ratio of calcium perphosphate is 1:1, and it is placed for 5 minutes.
  • the fertilizer mixture precipitates a large amount of water, the material becomes damp and viscous, and the fertilizer eventually agglomerates and becomes a whole piece.
  • the modified magnesium oxide powder formula: magnesium oxide raw powder, adding 10% of the total amount of the original magnesium oxide powder, soybean vegetable oil: mineral oil (carbon chain in C16-C35 mineral oil) according to 1:1 The proportion is adjusted from time to time, and the modification is carried out until the powder has a mesh number of 1000 mesh.
  • the mass ratio of calcium perphosphate is 1:1, and it is completely loose after being left for 5 months;
  • the mass ratio of calcium perphosphate is 1:1, and it is placed for 5 minutes.
  • the fertilizer mixture precipitates a large amount of water, the material becomes damp and viscous, and the fertilizer eventually agglomerates and becomes a whole piece.

Landscapes

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

Abstract

La présente invention concerne un procédé de préparation d'urée résistante à l'humidité spécifiquement pour un engrais mélangé, caractérisé par : l'ajout d'urée granulaire dans une extrémité avant d'un tambour d'enduction, un disque, ou un mélangeur ayant une fonction de mélange et l'enduction par pulvérisation de l'urée granulaire avec une couche d'un agent résistant à l'humidité dédié ; et l'enduction par pulvérisation de l'urée granulaire avec une couche de poudre d'oxyde de magnésium modifiée dans une extrémité arrière du cylindre d'enduction, du disque, ou du mélangeur ayant une fonction de mélange pour obtenir l'urée résistante à l'humidité spécifiquement pour un engrais mélangé. L'urée préparée par le procédé peut être mélangée de façon stable avec un engrais acide tel que le superphosphate de calcium sans absorber l'humidité, devenir humide ou s'agglomérer.
PCT/CN2017/102066 2017-07-18 2017-09-18 Procédé de préparation d'urée résistante à l'humidité spécifiquement pour un engrais mélangé WO2019015067A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
MA47625A MA47625B1 (fr) 2017-07-18 2017-09-18 Procédé de préparation d’urée résistante à l’humidité spécifiquement pour un engrais mélangé

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201710587757.9 2017-07-18
CN201710587757.9A CN107586189A (zh) 2017-07-18 2017-07-18 一种掺混肥专用防潮型尿素的制备方法

Publications (1)

Publication Number Publication Date
WO2019015067A1 true WO2019015067A1 (fr) 2019-01-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2017/102066 WO2019015067A1 (fr) 2017-07-18 2017-09-18 Procédé de préparation d'urée résistante à l'humidité spécifiquement pour un engrais mélangé

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CN (1) CN107586189A (fr)
MA (1) MA47625B1 (fr)
WO (1) WO2019015067A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108203350A (zh) * 2018-01-19 2018-06-26 湖北富邦科技股份有限公司 一种添加中微量的防潮防结防粉化型颗粒肥料包膜方法
CN111825421A (zh) * 2020-07-29 2020-10-27 襄阳市政建设集团有限公司 一种基于保温材料的活性磷石膏微粉制备方法

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CN1263905A (zh) * 2000-03-07 2000-08-23 苏笑海 植物淀粉全降解家电产品内包装衬垫
CN1342628A (zh) * 2001-10-26 2002-04-03 蔡剑斌 用于制备长贮存期松散性复合肥的防结块松散剂
CN102311296A (zh) * 2011-08-08 2012-01-11 殷海权 高稳定性不破乳结晶硝铵用抗硬化剂
CN104355824A (zh) * 2014-11-03 2015-02-18 领先生物农业股份有限公司 一种包膜控释肥料及其生产方法
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CN106083281A (zh) * 2016-05-31 2016-11-09 湖北富邦科技股份有限公司 一种含有机质的新型硝态氮肥或硝基复合肥的制备方法

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CN100506757C (zh) * 2006-09-05 2009-07-01 河南农业大学 大田专用缓/控释肥料及其生产方法
CN102001887B (zh) * 2010-11-23 2013-05-15 中盐安徽红四方股份有限公司 一种高效环保型缓释肥料及其制备方法
CN102093144B (zh) * 2011-01-19 2012-11-21 施可丰化工股份有限公司 可生物降解包膜尿素
CN102336617B (zh) * 2011-09-02 2013-09-25 史丹利化肥股份有限公司 高塔造粒缓释长效氯基复合肥料及其制备方法
CN104649826A (zh) * 2015-02-09 2015-05-27 山西大学 利用镁渣制备具有防结块和缓释性能肥料的方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN1161317A (zh) * 1997-02-24 1997-10-08 郑州工业大学 一种生产缓效多营养包膜尿素的方法
CN1263905A (zh) * 2000-03-07 2000-08-23 苏笑海 植物淀粉全降解家电产品内包装衬垫
CN1342628A (zh) * 2001-10-26 2002-04-03 蔡剑斌 用于制备长贮存期松散性复合肥的防结块松散剂
CN102311296A (zh) * 2011-08-08 2012-01-11 殷海权 高稳定性不破乳结晶硝铵用抗硬化剂
CN104355824A (zh) * 2014-11-03 2015-02-18 领先生物农业股份有限公司 一种包膜控释肥料及其生产方法
CN105565974A (zh) * 2015-12-16 2016-05-11 湖北富邦科技股份有限公司 一种环保高效的化肥多功能包裹剂、制备方法及应用
CN106045792A (zh) * 2016-05-31 2016-10-26 湖北富邦科技股份有限公司 一种快速制备含有中微量元素的新型尿素的方法
CN106083281A (zh) * 2016-05-31 2016-11-09 湖北富邦科技股份有限公司 一种含有机质的新型硝态氮肥或硝基复合肥的制备方法

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Publication number Publication date
MA47625B1 (fr) 2020-11-30
CN107586189A (zh) 2018-01-16
MA47625A1 (fr) 2020-02-28

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