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An anti-caking agent, urea technology, applied in the direction of fertilizer mixture, fertilization device, application, etc., can solve the problems of powder increase, large amount of addition, dust, etc.
Active Publication Date: 2012-10-24
SICHUAN LUTIANHUA
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[0004] The above-mentioned anti-caking agents all have certain disadvantages in use: although the cost of inert powder anti-caking agents is not high, the effect is poor, and the dust in use will pollute the environment. Larger pulverization phenomenon, the powder in the bag increases significantly; the paste-like organic hydrophobic anti-caking agent needs to take heating and heat preservation measures in the anti-caking addition project, which not only brings great inconvenience to the process operation, but also the
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Embodiment 1
[0041] Water-soluble polymer: polyvinyl alcohol
[0042] Surfactant: Sodium Lauryl Sulfate
[0043] Sulfate: Zinc Sulfate
[0044] Polyol: Ethylene Glycol
[0045] 9% water-soluble polymer, 6% surfactant, 0.5% sulfate, 1% polyol, and the balance is water.
[0046] The method of adding the anti-caking agent is to directly add the anti-caking agent solution to the urea granules after atomizing, and the added amount is 0.05% of the urea mass.
Embodiment 2
[0048] Water-soluble polymer: polyacrylamide
[0049] Surfactant: sodium octadecylamine acetate
[0050] Sulfate: Zinc Sulfate
[0051] Polyol: Propylene Glycol
[0052] Water-soluble polymer 15%, surfactant 10%, sulfate 2%, polyol 3%, and the balance is water.
[0053] The method of adding the anti-caking agent is to directly add the anti-caking agent solution to the urea granules after atomizing, and the added amount is 0.15% of the urea mass.
Embodiment 3
[0055] Water-soluble polymer: polyvinylamine
[0056] Surfactant: sodium dodecylbenzenesulfonate
[0057] Sulfates: Zinc Sulfate, Potassium Sulfate
[0058] Polyol: Glycerol
[0059] 10% water-soluble polymer, 8% surfactant, 1% sulfate, 2% polyol, and the balance is water.
[0060] The method of adding the anti-caking agent is to directly add the anti-caking agent solution to the urea granules after atomizing, and the added amount is 0.08% of the urea mass.
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Abstract
The invention relates to an externally added anticaking agent for inhibiting urea caking. The effective ingredient of the externally added anticaking agent comprises a water-soluble high polymer, a polyol, a surfactant and a sulfate. The anticaking agent is excellent in effects of inhibiting urea moisture-absorption caking and powdering and high in urea caking prevention rate, and simultaneously has the characteristics of simple and convenient addition process, low dosage, low cost, green and environment-friendly raw materials and the like.
Description
technical field [0001] The invention relates to an additive, in particular to a urea anti-caking agent. Background technique [0002] Due to the low critical relative humidity of urea, it is easy to cause agglomeration and pulverization due to moisture absorption in the humid weather in the south, which not only brings difficulties to product storage and transportation, but also seriously affects sales and use. Therefore, how to prevent urea agglomeration, improve product quality, reduce additive costs, and make urea products more acceptable to users and more competitive in the market has become a problem that manufacturers at home and abroad must solve. [0003] In order to prevent urea caking, in addition to taking preventive measures during production, packaging and storage, it is the most effective and effective method to add anti-caking agents to urea finished products. At present, the four types of anti-caking agents commonly used at home and abroad are: 1. Inert powd...
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Application Information
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