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Anti-caking water-soluble fertilizer and preparation method thereof

A water-soluble fertilizer and anti-caking technology, applied in phosphate fertilizers, fertilization devices, fertilizer mixtures, etc., can solve the problems of small particle agglomeration, unsuitable anti-caking agents, reducing the fertilizer efficiency of water-soluble fertilizers, etc., to achieve consistent crystal structure and granularity. Uniform distribution and enhanced anti-caking properties

Inactive Publication Date: 2019-10-25
安徽康坶国际化肥股份有限公司
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the forms of water-soluble fertilizers are mainly divided into liquid and solid. The storage and transportation of liquid water-soluble fertilizers are inconvenient. Solid water-soluble fertilizers are mainly in powder form. Since the raw materials of water-soluble fertilizers are mainly crystalline substances, solid water-soluble fertilizers are prone to reaction agglomeration. , reducing the fertilizer efficiency of water-soluble fertilizers. Water-soluble fertilizers are particularly prone to agglomeration problems during production, storage and transportation. The main reason is that fertilizer grains absorb moisture, dissolve and evaporate on the surface, and recrystallize, thereby forming crystal bridges, causing small particles to become large. Granular and agglomerated
Due to the limited amount of water-insoluble matter required by water-soluble fertilizers, anti-caking agents added to conventional fertilizers are not suitable for water-soluble fertilizers

Method used

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  • Anti-caking water-soluble fertilizer and preparation method thereof

Examples

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Effect test

Embodiment 1

[0020] A method for preparing an anti-caking water-soluble fertilizer, comprising the following steps: heating 32 parts of urea to a molten state, adding 13 parts of 100-mesh ammonium dihydrogen phosphate, 6 parts of 100-mesh potassium nitrate and 2.4 parts of 100-mesh potassium sulfate , after stirring evenly, cool down and solidify, and pulverize to obtain 16-mesh water-soluble fertilizer crystals.

Embodiment 2

[0022] A method for preparing an anti-caking water-soluble fertilizer, comprising the following steps: heating 31 parts of urea to a molten state, adding 12 parts of 80-mesh ammonium dihydrogen phosphate, 8 parts of 80-mesh potassium nitrate and 2.8 parts of 80-mesh potassium sulfate , after stirring evenly, cool down and solidify, and pulverize to obtain 14-mesh water-soluble fertilizer crystals.

Embodiment 3

[0024] A method for preparing an anti-caking water-soluble fertilizer, comprising the following steps: heating 34 parts of urea to a molten state, adding 11 parts of 90-mesh ammonium dihydrogen phosphate, 9 parts of 90-mesh potassium nitrate and 1.7 parts of 90-mesh potassium sulfate , after stirring evenly, cool down and solidify, and pulverize to obtain 20-mesh water-soluble fertilizer crystals.

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Abstract

The invention discloses an anti-caking water-soluble fertilizer and preparation method thereof. The preparation method comprises the steps that carbamide is heated to a molten state, ammonium dihydrogen phosphate, nitrate of potash and potassium sulphate are added, after evenly stirring, cooling and solidification are conducted, and the water-soluble fertilizer is obtained through crushing. According to the water-soluble fertilizer, the water solubility is good, dissolution is fast, the water-soluble fertilizer has the good anti-caking performance, and the use ratio of the fertilizer efficiency is high.

Description

technical field [0001] The invention relates to the field of water-soluble fertilizer preparation, in particular to an anti-caking water-soluble fertilizer and a preparation method thereof. Background technique [0002] Water-soluble fertilizer is a multi-component compound fertilizer that can be dissolved in water. It can be quickly dissolved in water and is more easily absorbed by crops. Compared with traditional solid granular compound fertilizer and slow-release fertilizer, water-soluble fertilizer has instant solubility and high absorption rate. , quick effect, no residue, convenient application and other significant advantages. In addition, water-soluble fertilizers can be dissolved in water, and can save water, fertilizer, and labor through drip irrigation and fertilization that integrate water and fertilizer. Therefore, the application of water-soluble fertilizers in the field of high-efficiency agriculture has gradually become popular. Moreover, the absorption and...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G1/00
CPCC05B7/00C05G5/30C05G3/20
Inventor 房晓涛夏飞
Owner 安徽康坶国际化肥股份有限公司
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