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A kind of anti-caking agent for compound fertilizer and its preparation and use method

An anti-caking agent and compound fertilizer technology, which is applied in application, fertilization equipment, fertilizer mixture, etc., can solve the problems of poor moisture-proof and waterproof overall effect, poor slow-release performance of fertilizer, pollution of soil and surrounding environment, etc. Achieve the effect of improving moisture-proof and waterproof ability, biodegradability, and improving moisture-proof and waterproof effects

Active Publication Date: 2019-06-21
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that it brings in moisture, which is the direct cause of fertilizer caking
3. The oil-solvent anti-caking agent avoids the shortcomings of the above two methods, and has the advantages of convenient use and good effect. However, the traditional method needs to add mineral oil (such as engine oil) as a solvent, and the amount of mineral oil is large. The amount of mineral oil in a ton of compound fertilizer reaches 2-3kg. These mineral oils enter the soil with the fertilizer and are difficult to degrade, causing a certain degree of pollution to the soil and surrounding environment.
[0010] However, the anti-caking agent in the above-mentioned prior art still mainly depends on the film-forming effect of fatty acid (ester) and fatty (amide) amide for its moisture-proof and waterproof function and conjunctiva, although other organic substances added have certain hydrophobicity, but The overall effect of moisture-proof and waterproof is not ideal
In addition, the slow-release performance of the fertilizer mixed with the above-mentioned anti-caking agent is not ideal.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A compound fertilizer anti-caking agent, the mass percent of each component is:

[0037] Rapeseed Oil: 65.0%; Solid Paraffin: 13.0%; Stearic Acid: 5.0%; Stearylamine: 9.0%; Span-80: 3.45%; Vinyl Acetate: 4.5%; Benzoyl Peroxide: 0.05% . The sum of the above components is 100%.

[0038] The preparation method of described compound fertilizer anti-caking agent is as follows:

[0039] (1) Melting: Take the solid paraffin, stearic acid and octadecylamine in the stated ratio, add them to the reaction kettle with a stirring device, heat them with steam to 65°C, make them fully melt and react, and obtain the melted mixture ;

[0040] (2) Fusion: continue to heat the above melted mixture to 70°C, add the vegetable oil and Span-80 in the stated proportion, and after mixing, add the vinyl acetate in the stated proportion, and then add the stated proportion benzoyl peroxide, and stirred at 75°C for 40 min to obtain an anti-caking agent for compound fertilizer.

[0041] The using...

Embodiment 2

[0046] A compound fertilizer anti-caking agent, the mass percent of each component is:

[0047] Palm oil: 20.0%, rapeseed oil 25.0%; solid paraffin: 5.0%, liquid paraffin: 15.0%; stearic acid: 10.0%; octadecylamine: 9.0%; Span-60: 8.4%; vinyl acetate: 7.5%; Benzoyl Peroxide: 0.10%. The sum of the above components is 100%.

[0048] The preparation method of described compound fertilizer anti-caking agent is as follows:

[0049] (1) Melting: Take the paraffin wax, stearic acid and octadecylamine in the stated ratio, add them into a reaction kettle with a stirring device, heat them with steam to 60°C, make them fully melt and react, and obtain a melted mixture;

[0050] (2) Fusion: continue to heat the above melted mixture to 70°C, add the vegetable oil and Span-60 in the stated proportion, and after mixing, add the vinyl acetate in the stated proportion, and then add the stated proportion benzoyl peroxide, and stirred at 75°C for 35 minutes to obtain an anti-caking agent for ...

Embodiment 3

[0056] A compound fertilizer anti-caking agent, the mass percent of each component is:

[0057] Palm Oil: 35%, Rapeseed Oil 15.0%; Liquid Paraffin: 13.0%; Solid Paraffin: 13.0%; Stearic Acid: 5.0%; Stearylamine: 5.0%; Tween-80: 7%; Vinyl Acetate: 6.85%; Benzoyl Peroxide: 0.15%. The sum of the above components is 100%.

[0058] The preparation method of described compound fertilizer anti-caking agent is as follows:

[0059] (1) Melting: Take the paraffin wax, stearic acid and octadecylamine in the stated proportions, add them into a reaction kettle with a stirring device, heat them with steam to 65°C, make them fully melt and react, and obtain a melted mixture;

[0060] (2) Fusion: continue to heat the above melted mixture to 70°C, add the vegetable oil and Span-80 in the stated proportion, and after mixing, add the vinyl acetate in the stated proportion, and then add the stated proportion benzoyl peroxide, and stirred at 80°C for 30 minutes to obtain an anti-caking agent fo...

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PUM

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Abstract

The invention discloses a compound fertilizer antiblocking agent which comprises the following components in percentage by mass: 40.0-70.0% of vegetable oil, 10.0-30.0% of paraffin, 1.0-10.0% of octadecylamine, 1.0-10.0% of vinyl acetate, 1.0-10.0% of surfactant and 0.02-0.20% of benzoperoxide. After being mixed with a compound fertilizer, the compound fertilizer antiblocking agent can form a compound film with higher moisture and water resistance than the existing antiblocking agent on the compound fertilizer; and the film can effectively prevent ambient moisture from invasion, thereby preventing the compound fertilizer granules from mutual binding and agglomeration. Besides, the mixed compound fertilizer has obviously higher slow-release property, thereby finally, enhancing the fertilizer efficiency of the compound fertilizer. The invention also discloses a preparation method of the compound fertilizer antiblocking agent and an application method of the compound fertilizer antiblocking agent.

Description

technical field [0001] The invention belongs to the technical field of compound fertilizer anti-caking treatment, and in particular relates to a compound fertilizer anti-caking agent and a preparation and use method thereof. Background technique [0002] Affected by environmental factors such as moisture, temperature, and stacking pressure, compound fertilizers tend to agglomerate easily, which is not only inconvenient for the storage and transportation of compound fertilizers, but also causes great troubles for fertilization. Therefore, whether compound fertilizer can effectively prevent caking has become an important indicator for people to evaluate the quality of fertilizer. [0003] Existing compound fertilizer anti-caking agents have three types: powder type, water-solvent type and oil-soluble type: 1. The powder type anti-caking agent uses inert powder to block the formation of crystal bridges between fertilizer particles, but it needs to be sprayed into the oily type ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00
CPCC05G3/00
Inventor 赵莹汤静芳王洁张银洪赵起袁遥
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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