MA47625B1 - Method for preparing moisture resistant urea specifically for mixed fertilizer - Google Patents
Method for preparing moisture resistant urea specifically for mixed fertilizerInfo
- Publication number
- MA47625B1 MA47625B1 MA47625A MA47625A MA47625B1 MA 47625 B1 MA47625 B1 MA 47625B1 MA 47625 A MA47625 A MA 47625A MA 47625 A MA47625 A MA 47625A MA 47625 B1 MA47625 B1 MA 47625B1
- Authority
- MA
- Morocco
- Prior art keywords
- urea
- mixed fertilizer
- specifically
- moisture resistant
- moisture
- Prior art date
Links
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
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.The present invention relates to a method for preparing moisture resistant urea specifically for a mixed fertilizer, characterized by: adding granular urea to a front end of a coating drum, disc, or mixer having a mixing function and spray coating the granular urea with a layer of a dedicated moisture resistant agent; and spray coating the granular urea with a layer of modified magnesium oxide powder in a rear end of the coating cylinder, disc, or mixer having a mixing function to obtain the urea resistant to moisture specifically for a mixed fertilizer. The urea prepared by the process can be stably mixed with an acidic fertilizer such as calcium superphosphate without absorbing moisture, becoming wet, or clumping.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201710587757.9A CN107586189A (en) | 2017-07-18 | 2017-07-18 | A kind of preparation method of the special damp-proof urea of Blending Fertilizer |
PCT/CN2017/102066 WO2019015067A1 (en) | 2017-07-18 | 2017-09-18 | Method of preparing moisture-proof urea specifically for blended fertilizer |
Publications (2)
Publication Number | Publication Date |
---|---|
MA47625A1 MA47625A1 (en) | 2020-02-28 |
MA47625B1 true MA47625B1 (en) | 2020-11-30 |
Family
ID=61042598
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
MA47625A MA47625B1 (en) | 2017-07-18 | 2017-09-18 | Method for preparing moisture resistant urea specifically for mixed fertilizer |
Country Status (3)
Country | Link |
---|---|
CN (1) | CN107586189A (en) |
MA (1) | MA47625B1 (en) |
WO (1) | WO2019015067A1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108203350A (en) * | 2018-01-19 | 2018-06-26 | 湖北富邦科技股份有限公司 | The anti-dusting type granulated fertilizer coating method of micro moisture-proof anti-caking in a kind of addition |
CN111825421A (en) * | 2020-07-29 | 2020-10-27 | 襄阳市政建设集团有限公司 | Preparation method of active phosphogypsum micro powder based on heat insulation material |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1161317A (en) * | 1997-02-24 | 1997-10-08 | 郑州工业大学 | Method for prodn. of multi-nutrient slow releasing coated urea |
CN1125848C (en) * | 2000-03-07 | 2003-10-29 | 苏笑海 | Full-degradable internal packing pad of plant starch for household electric appliances |
CN1342628A (en) * | 2001-10-26 | 2002-04-03 | 蔡剑斌 | Anti-blocking loosening agent for preparing loose composite fertilizer with long storage period |
CN100506757C (en) * | 2006-09-05 | 2009-07-01 | 河南农业大学 | Slowly/control released fertilizer special for field and its production process |
CN102001887B (en) * | 2010-11-23 | 2013-05-15 | 中盐安徽红四方股份有限公司 | Efficient environmental-friendly slow-release fertilizer and preparation method thereof |
CN102093144B (en) * | 2011-01-19 | 2012-11-21 | 施可丰化工股份有限公司 | Biodegradable coated urea |
CN102311296B (en) * | 2011-08-08 | 2013-06-12 | 太原海力丰科技发展有限公司 | Anti-hardener for high-stability crystal ammonium nitrate without demulsification |
CN102336617B (en) * | 2011-09-02 | 2013-09-25 | 史丹利化肥股份有限公司 | High-tower granulation slow release long-effect chlorine base compound fertilizer and preparation method thereof |
CN104355824B (en) * | 2014-11-03 | 2016-08-24 | 领先生物农业股份有限公司 | A kind of film-coated controlled release fertilizer and production method thereof |
CN104649826A (en) * | 2015-02-09 | 2015-05-27 | 山西大学 | Method for preparing anti-caking slow-release fertilizer from magnesium slag |
CN105565974A (en) * | 2015-12-16 | 2016-05-11 | 湖北富邦科技股份有限公司 | Environment-friendly efficient multifunctional fertilizer wrapping agent as well as preparation method and application |
CN106083281A (en) * | 2016-05-31 | 2016-11-09 | 湖北富邦科技股份有限公司 | A kind of preparation method containing organic Novel nitrate nitrogen fertilizer or nitro-compound fertilizer |
CN106045792A (en) * | 2016-05-31 | 2016-10-26 | 湖北富邦科技股份有限公司 | Method for rapidly preparing novel urea containing medium-trace elements |
-
2017
- 2017-07-18 CN CN201710587757.9A patent/CN107586189A/en active Pending
- 2017-09-18 WO PCT/CN2017/102066 patent/WO2019015067A1/en active Application Filing
- 2017-09-18 MA MA47625A patent/MA47625B1/en unknown
Also Published As
Publication number | Publication date |
---|---|
WO2019015067A1 (en) | 2019-01-24 |
CN107586189A (en) | 2018-01-16 |
MA47625A1 (en) | 2020-02-28 |
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