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Melt granulated polypeptide stable fertilizer and preparation method thereof

A technology of melt granulation and stability, which is applied in the direction of fertilizer mixture, fertilization device, agricultural gas emission reduction, etc., can solve the problems of increasing utilization difficulty, high technical difficulty, strong limitations, etc., and achieves significant effect of increasing production and good quality , the effect of promoting absorption

Active Publication Date: 2012-06-20
STANLEY AGRI GRP CO LTD
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  • Description
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  • Application Information

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Problems solved by technology

[0003] With the improvement of people's environmental awareness, people pay more and more attention to reducing fertilizer loss, improving fertilizer utilization rate, reducing or eliminating fertilizer pollution, and reducing fertilizer application is one of the most effective measures to reduce fertilizer pollution and improve fertilizer utilization rate , but due to the limitation of population growth and food demand, this method is difficult to practice
Through the improvement of agronomic measures, the optimization of fertilizer ratio, the improvement of agrochemical services and the promotion of balanced fertilization technology, pollution can be reduced and fertilizer utilization efficiency can be improved. It is more difficult to use under the decentralized operation mode

Method used

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  • Melt granulated polypeptide stable fertilizer and preparation method thereof
  • Melt granulated polypeptide stable fertilizer and preparation method thereof
  • Melt granulated polypeptide stable fertilizer and preparation method thereof

Examples

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example 1

[0066]465kg of solid urea was heated to 136°C together with 0.8 kg combined urease inhibitor, 0.6 kg combined nitrification inhibitor and 0.2 kg polypeptide synergist with a content of 40.0% to become a molten liquid, and 150 kg of monoammonium phosphate, 140 kg of potassium chloride, Add 133 kg of ammonium chloride and 110.4 kg of talcum powder to the above molten liquid respectively, stir and mix for 2 to 3 minutes, the temperature of the slurry is 110 to 115 °C, and the slurry containing suspended solids passes through the granulator to become droplets from a height of Falling in the 106-meter prilling tower, heat and mass transfer with the updraft, cool and solidify into small pellets of 1-4 mm, and obtain granular melt-granulated polypeptide stable fertilizer.

[0067] The total nutrient content of the above-mentioned melt granulation polypeptide stable fertilizer is ≥40%, of which nitrogen (N) is 26%, phosphorus pentoxide (P 2 o 5 ) 6%, Potassium Chloride (K 2 O) 8%. ...

example 2

[0069] Take 350 kg of urea solution or melt at the outlet of the second-stage evaporator of the urea plant, the concentration is greater than 99%, the temperature is about 140°C, add 1.0 kg of combined nitrification inhibitor, 0.8 kg of combined urease inhibitor, and a polypeptide synergist with a content of 40.0% 0.2 kg, stir and mix, then add powdered monoammonium phosphate 195kg, potassium chloride 180 kg, filler 93kg, stir and mix for about 2 minutes, the slurry temperature is 110~120°C, and the slurry containing solid suspended matter passes through the granulator to become The droplets fall from the prilling tower with a height of 106 meters, conduct heat and mass transfer with the updraft, cool and solidify into small pellets of 1 to 4 mm, which are granular melt granulated polypeptide stable fertilizers.

[0070] The total nutrient content of the above-mentioned melt granulation polypeptide stable fertilizer is ≥40%, of which nitrogen (N) is 22%, phosphorus pentoxide (P...

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Abstract

The invention discloses a melt granulated polypeptide stable fertilizer and a preparation method thereof, relating to the field of compound fertilizers. The preparation method comprises the following steps: proportionally preparing urea, monoammonium phosphate, ammonium chloride, potassium chloride, compound urease inhibitor, compound nitrification inhibitor, polypeptide synergist and talcum powder; and heating the raw materials, mixing, carrying out spray granulation, cooling, screening, measuring and packaging to obtain the finished product. The stable fertilizer disclosed by the invention has the advantages of high utilization ratio, no pollution and obvious yield increase effect, promotes absorption of microelements, improves the quality of the crops, and enhances the stress tolerance.

Description

[0001] technical field [0002] The invention relates to the field of compound fertilizers, in particular to a melt granulation polypeptide stable fertilizer and a preparation method thereof. Background technique [0003] With the improvement of people's environmental awareness, people pay more and more attention to reducing fertilizer loss, improving fertilizer utilization rate, reducing or eliminating fertilizer pollution, and reducing fertilizer application is one of the most effective measures to reduce chemical fertilizer pollution and improve fertilizer utilization rate , but due to the limitations of population growth and food demand, this method is difficult to practice. Through the improvement of agronomic measures, the optimization of fertilizer ratio, the improvement of agrochemical services and the promotion of balanced fertilization technology, pollution can be reduced and fertilizer utilization efficiency can be improved. It is more difficult to use under the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/08C05G3/90
CPCY02P60/21
Inventor 高进华赵玉平高苏茂解学仕孙士俊
Owner STANLEY AGRI GRP CO LTD
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