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Special environmental-friendly anti-blocking agent for producing urea-based compound fertilizer by high-tower granulation and preparation method thereof

A technology for urea-based compound fertilizer and high-tower granulation, which is applied in the application, fertilization device, fertilizer mixture, etc., can solve the problem of no anti-caking agent, etc., and achieve the effects of preventing caking, easily obtaining raw materials, and inhibiting caking.

Active Publication Date: 2011-03-16
HUBEI FORBON TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For high-tower granulated compound fertilizers, there is currently no special anti-caking agent in China

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A. Vegetable oil acidified oil pretreatment: each component is calculated by weight percentage, and 70% rapeseed oil acidified oil is added in a vacuum drying pot to heat and carry out vacuum drying, so that its water content is less than 0.5%;

[0021] B. Decolorization: Add the dried acidified rapeseed oil into the decolorization pot, add 0.5% activated carbon accounting for the weight of the acidified rapeseed oil under the condition of stirring, and react for 3 hours at a temperature of 800° C.;

[0022] C. Add the decolorized rapeseed acidified oil into the blending tank, and add 30% C under the condition of stirring 6 Fatty alcohol, after stirring evenly, the product is packaged.

Embodiment 2

[0024] A. Vegetable oil acidified oil pretreatment: each component is calculated by weight percentage, and 45% rapeseed oil acidified oil and 45% soybean oil acidified oil are added in a vacuum drying pot to heat and carry out vacuum drying, so that the water content is less than 0.5%. ;

[0025] B. Decolorization: Add the dried mixed acidified oil into the decolorized pot, add 1.0% activated carbon accounting for the weight of the mixed acidified oil while stirring, and react at 900°C for 2 hours;

[0026] C. Add the decolorized rapeseed acidified oil into the blending tank, and add 10% C under the condition of stirring 7 Fatty alcohol, after stirring evenly, the product is packaged.

Embodiment 3

[0028] A. Vegetable oil acidified oil pretreatment: each component is calculated by weight percentage, 30% rapeseed oil acidified oil, 30% soybean oil acidified oil, 20% cottonseed oil acidified oil are added to the vacuum drying pot and heated to vacuum Dried so that its moisture content is less than 0.5%;

[0029] B. Decolorization: Add the dried mixed acidified oil into the decolorized pot, add 0.8% activated carbon accounting for the weight of the mixed acidified oil while stirring, and react at a temperature of 850° C. for 2.5 hours;

[0030] C. Add the decolorized rapeseed acidified oil into the blending tank, and add 20% C under the condition of stirring 10 Fatty alcohol, after stirring evenly, the product is packaged.

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Abstract

The invention relates to a special environmental-friendly anti-blocking agent for producing urea-based compound fertilizer by high-tower granulation and a preparation method thereof. The special environmental-friendly anti-blocking agent comprises the following components in percentage by weight: 90% of acidification oil for vegetable oil and 10% of low-carbon alcohol. The preparation method comprises the following steps: adding 90% of the acidification oil for vegetable oil to a vacuum drying pot for vacuum drying by heating until water content is less than 0.5%; adding the dried acidification oil for vegetable oil to a decoloring pot, adding active carbon which accounts for 0.5%-1% of the weight of the acidification oil for vegetable oil while stirring, and reacting at the temperature of 800-900 DEG C for 2-3 hours; and adding the decolored acidification oil for vegetable oil to a blending tank, adding 10% of C6-C10 low-carbon alcohol while stirring evenly to finally obtain the anti-blocking agent. The anti-blocking agent in the invention has the advantages of excellent anti-blocking effect and less resource consumption, is pure natural, renewable and environmental friendly, and is capable of reducing agricultural production cost and increasing income of farmers.

Description

technical field [0001] The invention belongs to the field of chemical fertilizer additives, and in particular relates to an environment-friendly anti-caking agent specially used for high-tower granulation urea-based compound fertilizers and a preparation method thereof. Background technique [0002] Compound fertilizer is a fertilizer variety that has developed rapidly in recent years in China. The compound fertilizer must be stored during the period from production to application to the soil. The storage time ranges from one month to one year. It is not easy to keep the fertilizer loose during the storage period, especially the high-tower granulated urea-based compound fertilizer. Therefore, the caking problem of compound fertilizers during storage has always been a common concern of the fertilizer industry. [0003] The main raw materials for the production of compound fertilizers in my country are: urea, ammonium chloride, ammonium nitrate, ammonium sulfate, diammonium...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/08C05G3/00C05G3/90
Inventor 阮自斌王仁宗刘裕
Owner HUBEI FORBON TECH
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