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High-concentration major element liquid water-soluble fertilizer and preparation method thereof

A technology with a large amount of elements and high concentration, applied in fertilizer mixtures, fertilization devices, applications, etc., can solve the problems of increasing fertilizer, increasing the risk of production process, etc., and achieve the effect of increasing stability, significantly increasing production, and improving resistance.

Active Publication Date: 2014-11-19
中化(临沂)作物营养有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This patent uses the amino acid produced by acid hydrolysis of feathers as a chelating agent to increase the slow release of the fertilizer, and the use of acid increases the risk of the production process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] (1) Add 340Kg of pure water to the enamel reaction kettle, turn on the stirring, control the temperature in the reaction kettle at 80°C, add 87Kg of potassium pyrophosphate, 300Kg of potassium formate and 93Kg of potassium dihydrogen phosphate, and stir rapidly for 2 hours.

[0035] (2) Adjust the temperature to 45°C and stir for 0.5h, and add 132Kg of dipotassium hydrogen phosphate to it.

[0036] (3) Add 267Kg of urea into the reaction kettle until the dipotassium hydrogen phosphate dissolves completely.

[0037] (4) Add 22Kg of EDTA-Zn and 10Kg of instant boron into the reaction kettle after the solid in the kettle dissolves completely.

[0038] (5) After all the solids in the kettle are completely dissolved, stop heating and cool to room temperature to obtain a high-concentration macroelement liquid water-soluble fertilizer.

Embodiment 2

[0040] (1) Add 350Kg of pure water to the enamel reaction kettle, turn on the stirring, control the temperature in the reaction kettle at 80°C, add 53Kg of potassium pyrophosphate, 297Kg of potassium formate and 97Kg of potassium dihydrogen phosphate, and stir rapidly for 2 hours.

[0041] (2) Adjust the temperature to 40°C and stir for 0.5h, and add 183Kg of dipotassium hydrogen phosphate to it.

[0042] (3) Add 267Kg of urea into the reaction kettle until the dipotassium hydrogen phosphate dissolves completely.

[0043] (4) Add 22Kg of EDTA-Zn and 10Kg of instant boron into the reaction kettle after the solid in the kettle dissolves completely.

[0044] (5) After all the solids in the kettle are completely dissolved, stop heating and cool to room temperature to obtain a high-concentration macroelement liquid water-soluble fertilizer.

Embodiment 3

[0046] (1) Add 340Kg of pure water to the enamel reaction kettle, turn on the stirring, control the temperature in the reaction kettle at 80°C, add 93Kg of potassium pyrophosphate, 313Kg of potassium formate and 97Kg of potassium dihydrogen phosphate, and stir rapidly for 2 hours.

[0047] (2) Adjust the temperature to 35°C and stir for 0.5h, and add 104Kg of dipotassium hydrogen phosphate to it.

[0048] (3) Add 267Kg of urea into the reaction kettle until the dipotassium hydrogen phosphate dissolves completely.

[0049] (4) Add 22Kg of EDTA-Zn and 10Kg of instant boron into the reaction kettle after the solid in the kettle dissolves completely.

[0050] (5) After all the solids in the kettle are completely dissolved, stop heating and cool to room temperature to obtain a high-concentration macroelement liquid water-soluble fertilizer.

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Abstract

The invention discloses a high-concentration major element liquid water-soluble fertilizer and a preparation method thereof. The fertilizer comprises the materials in parts by weight: 7-10 parts of dipotassium hydrogen phosphate, 18-20 parts of urea, 8-11 parts of potassium dihydrogen phosphate, 5-8 parts of potassium permangenate, 24-28 parts of potassium formate, 1-3 parts of EDTA-Zn, 0.5-2 parts of instant boron, and the balance water. The method comprises the steps: under the ordinary pressure and in a reaction kettle, firstly stirring potassium permangenate, potassium formate and potassium dihydrogen phosphate for 2 h according to the formula ratio under the condition of the temperature of 80 DEG C, adjusting the temperature to 45 DEG C, stirring for 0.5 h, then dissolving dipotassium hydrogen phosphate and urea in the solution according to the set formula, after the materials are dissolved completely, adding a proper amount of instant boron and EDTA-Zn, heating to dissolve, after reaction dissolution of the materials according to the formula ratio is completed, cooling to the room temperature, packaging, and thus obtaining the major element liquid water-soluble fertilizer product. The process is simple, the raw material cost is low, and the product is suitable for requirements of current dropper devices and can be widely popularized.

Description

technical field [0001] The invention belongs to the field of water-soluble fertilizer production, and relates to a large-element liquid water-soluble fertilizer, in particular to a high-concentration large-element liquid water-soluble fertilizer and a preparation method thereof. Background technique [0002] Water-soluble fertilizers are part of water-saving agricultural technology. As liquid water-soluble fertilizers, they should conform to the development trend of water-soluble fertilizers. As a part of water-saving agricultural technology, it should conform to the development direction of water-saving technology. In addition, factors such as the environment and energy conservation must be taken into consideration. Compounding (mixing) water-soluble fertilizers can save labor, especially in today's rising domestic labor costs, compounding water-soluble fertilizers can reduce the frequency of topdressing. The high concentration of water-soluble fertilizer can reduce stora...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/06
Inventor 孙忠鹏王岩张弘梁志杰
Owner 中化(临沂)作物营养有限公司
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