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Antiblocking agent for macroelement water-dissolvable fertilizer, as well as preparation and application of the antiblocking agent

An anti-caking agent and fertilizer technology, applied in the direction of application, fertilizer mixture, fertilization device, etc., can solve the problems of difficult degradation of organic compounds, complicated adding process, soil pollution, etc., achieve good anti-caking effect, broad application prospects, Prepare simple effects

Active Publication Date: 2011-08-17
山东福川生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above several anti-caking agents have their own shortcomings: high cost, complicated adding process, organic compounds as anti-caking agents are not easy to degrade, and long-term use is easy to cause soil pollution, such as paraffin, polyethylene and fatty amine surface Active agent, etc.

Method used

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  • Antiblocking agent for macroelement water-dissolvable fertilizer, as well as preparation and application of the antiblocking agent
  • Antiblocking agent for macroelement water-dissolvable fertilizer, as well as preparation and application of the antiblocking agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Add 1000kg of water to the reaction kettle, heat to 76°C and add 180kg of sodium dodecylbenzenesulfonate and 20kg of cross-linked polyvinylpyrrolidone under stirring, keep warm at 76°C and stir for 20min, and obtain a solution containing anti-caking agent after filtration.

[0040] Application: Send the solution containing anti-caking agent to the dual-fluid nozzle or nozzle group, atomize it and spray it on the fertilizer particles at 70°C in the coating machine. The coating machine rotates at 50 rpm to prevent caking. The amount of block agent is 0.1%. At the same time, the fertilizer in the coating machine is heated to 80°C-100°C for heating and drying. After stopping spraying, continue to heat and dry for 5 minutes, and the surfactant and polymer in the anti-caking agent solution can be formed. Needle crystals are uniformly dispersed in fertilizer granules. After cooling, discharge and pack.

Embodiment 2

[0042] Add 1000kg of water to the reaction kettle, heat to 73°C and add 170kg of sodium tetradecylbenzenesulfonate and 20kg of cross-linked polyvinylpyrrolidone under stirring, keep warm at 73°C and stir for 22min, and obtain a solution of anti-caking agent after filtration.

[0043]Application: Send the anti-caking agent solution to the two-fluid nozzle and spray it on the fertilizer particles at 75°C in the coating machine, the coating machine rotates at 50 rpm, and the amount of anti-caking agent is 0.1% , At the same time, heat the fertilizer in the coating machine to 80 ℃ ~ 100 ℃ for heating and drying, stop spraying and continue heating and drying for 5 minutes. After cooling, discharge and pack.

Embodiment 3

[0045] Add 1000kg of water to the reaction kettle, heat to 70°C and add 165kg of sodium hexadecylbenzenesulfonate and 25kg of cross-linked polyvinylpyrrolidone under stirring, keep warm at 70°C and stir for 20min, and filter to obtain a solution containing an anti-caking agent.

[0046] Application: Send the anti-caking agent solution to the nozzle group, atomize it and spray it on the fertilizer particles at 65°C in the coating machine; the coating machine rotates at 60 rpm, and the amount of anti-caking agent is 0.1%. At the same time, heat the fertilizer in the coating machine to 80°C to 100°C for heating and drying, stop spraying and continue heating and drying for 5 minutes, and then discharge and pack after cooling.

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Abstract

The invention discloses an antiblocking agent for macroelement water-dissolvable fertilizer, as well as preparation and application of the antiblocking agent. The antiblocking agent is formed by the formulation of surfactant, polymer and water by the mass ratio of 12-20:2-4:100, wherein the surfactant is C12-C18 sodium salt or sylvite of alkylbenzene sulfonate, the polymer is cross-linked polyvinylpyrrolidone, and the antiblocking agent is used for preventing granular or bump macroelement water-dissolvable fertilizer from blocking. By utilizing the disintegration property of the biodegradablematerial, namely the cross-linked polyvinylpyrrolidone, the antiblocking agent improves the antiblocking property of the fertilizer, overcomes the defect that the common high-polymer antiblocking agent causes white pollution due to incapability of biodegradation, in addition, the price is low and the usage is saved.

Description

technical field [0001] The invention relates to an anti-caking agent for fertilizers and its preparation, in particular to an anti-caking agent for water-soluble fertilizers with a large number of elements and its preparation method. Background technique [0002] Water-soluble fertilizer with a large number of elements has the advantages of high nutrient content, easy crop absorption, quick effect, and convenient application. It can be applied with water or combined with water-saving facilities such as drip irrigation and sprinkler irrigation to save water, fertilizer, and labor. , The effect of increasing production can be widely used in various crops, and the application prospect is broad. However, water-soluble fertilizers with large amounts of elements are mainly composed of granular or powdery inorganic salts, which are very easy to agglomerate under the conditions of high temperature, high humidity and increased external pressure. The agglomerated fertilizer needs to ...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 沈玉文刘兆辉江丽华林海涛宋效宗石璟王梅谭德水高新昊郑福丽徐钰
Owner 山东福川生物科技有限公司
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