Preparation method of naturally-degradable compound fertilizer anti-blocking agent and application thereof

An anti-caking agent and compound fertilizer technology, applied in the application, fertilization device, fertilizer mixture and other directions, can solve the problems of soil and surrounding environment pollution, large dosage, etc., achieve rich gloss, improve particle strength, and prevent compound fertilizer from caking. block effect

CN102070373AInactive Publication Date: 2011-05-25福建达安能源实业有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2011-05-25
Estimated Expiration
Not applicable · inactive patent
Patent Text Reader

Abstract

The invention discloses a preparation method of a naturally-degradable compound fertilizer anti-blocking agent and an application thereof. The naturally-degradable compound fertilizer anti-blocking agent comprises the following components in percentage by mass: 10-20 percent of fatty amine or salt thereof, 20-25 percent of stearic acid, 15-20 percent of oleic acid, 5-15 percent of refined glycerin and 20-50 percent of waste edible oil and fat, and the sum of all the components is 100 percent according to the percentage. The preparation method comprises the following steps of: mixing all the components according to the proportion, heating to be 70 DEG C -85 DEG C, and stirring and reacting for 15 minutes-30 minutes. The used amount of the compound fertilizer anti-blocking agent is 05-2.0kg / t (compound fertilizer), and a granulation mode of a high air-cooling crystallization tower of an all-molten compound fertilizer is adopted to mix the naturally-degradable compound fertilizer anti-blocking agent with the compound fertilizer. In the preparation method and the application thereof, the processing is simple, the use cost is low, the anti-blocking performance is good, the purely natural and environmentally-friendly performances are achieved, the absorption of crops is convenient, the fertilizer effect is enhanced, and the soil is protected.
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Description

technical field

[0001] The invention relates to the technical field of anti-caking of compound fertilizers, in particular to a preparation method and application of a natural degradable anti-caking agent for compound fertilizers. Background technique

[0002] The caking problem of compound fertilizers has been paid more and more attention by manufacturers. Most fertilizer manufacturers have explored and discussed the mechanism and causes of granular fertilizer caking, and have adopted different anti-caking measures to reduce fertilizer caking. block to ensure the looseness of the granular fertilizer.

[0003] There are three types of existing anti-caking agents: 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 oily substances at the same time during use. Adheres to inert powders. Although this method has an anti...

Examples

Embodiment 1

[0019] Take 17kg of stearyl primary amine, 20kg of stearic acid, 18kg of oleic acid, 5kg of refined glycerin, and 40kg of waste edible oil, mix these raw materials in proportion, heat to 75°C and stir for 30min to react. After the reaction, the natural degradable compound fertilizer is obtained. Caking agent. The amount of anti-caking agent is 0.6kg / t compound fertilizer, and it is mixed with the compound fertilizer by air-cooled crystallization high-tower granulation method of full-melt compound fertilizer.

Embodiment 2

[0021] Take 20kg of docosylamine, 25kg of stearic acid, 15kg of oleic acid, 15kg of refined glycerin, and 25kg of waste edible oil, mix these raw materials in proportion, heat to 85°C and stir for 20 minutes to react. After the reaction, a natural degradable compound fertilizer is obtained. Anti-caking agent. The dosage of the anti-caking agent is 1.5kg / t of compound fertilizer, and the granulation method of the compound fertilizer is the same as in Example 1.

Embodiment 3

[0023] Take 12kg of stearylamine acetate, 22kg of stearic acid, 18kg of oleic acid, 8kg of refined glycerin, and 40kg of waste edible oil. Mix these raw materials in proportion, heat to 80°C and stir for 30 minutes. After the reaction, the natural degradable Compound fertilizer anti-caking agent. The dosage of the anti-caking agent is 1.0 kg / t of compound fertilizer, and the granulation method of the compound fertilizer is the same as in Example 1.