A kind of potassium nitrate anti-caking agent and its preparation and use method

An anti-caking agent and potassium nitrate technology, applied in nitrate fertilizer, application, nitrogen fertilizer and other directions, can solve the problems of uneven dispersion of powder anti-caking agent, disordered composition of potassium nitrate solution, abnormal potassium nitrate crystallization, etc. Excellent anti-caking performance, low production cost and small usage

Active Publication Date: 2019-11-15
KINGENTA ECOLOGICAL ENG GRP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Solve the problems of low production efficiency caused by the addition of common potassium nitrate anti-caking agents before crystallization, disordered composition of potassium nitrate solution, foaming, abnormal crystallization of potassium nitrate, etc., and solve the problems of uneven dispersion and easy loss of powder anti-caking agents, etc. question

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Potassium nitrate anti-caking agent composition:

[0034] Composition according to mass fraction raw material: water 40%, sodium dodecyl sulfonate 20%, sodium naphthalene sulfonate formaldehyde condensate 20%, sorbitan monooleate 10%, polyethylene glycol-600 (average molecular weight 600) 1%, ethanol 9%.

[0035] Potassium nitrate anti-caking agent preparation:

[0036] First mix water and ethanol, then add sodium dodecylsulfonate and sodium naphthalenesulfonate formaldehyde condensate, stir well, add sorbitan monooleate and polyethylene glycol-600 (average molecular weight 600), continue Stir until well dispersed.

[0037] Potassium nitrate anti-caking agent use:

[0038] Add the atomized anti-caking agent at the entrance of the potassium nitrate high-temperature fluidized bed to make it evenly spray on the surface of potassium nitrate crystals, then enter the high-temperature fluidized bed and dry it together with potassium nitrate. The amount of anti-caking agent ...

Embodiment 2

[0042] Potassium nitrate anti-caking agent composition:

[0043] According to the mass fraction raw materials are composed of: water 35%, sodium dodecylsulfonate 25%, sodium naphthalenesulfonate formaldehyde condensate 25%, sorbitan monopalmitate 5%, polyethylene glycol-600 (average molecular weight 600 ) 5%, ethanol 5%.

[0044] Potassium nitrate anti-caking agent preparation:

[0045] First mix water and ethanol, then add sodium dodecylsulfonate and sodium naphthalenesulfonate formaldehyde condensate, stir well, then add sorbitan monopalmitate and polyethylene glycol-600 (average molecular weight 600), continue stirring until uniformly dispersed.

[0046] Potassium nitrate anti-caking agent use:

[0047] Same as Example 1, except that the amount of anticaking agent is 3 kg / ton of potassium nitrate.

[0048] Potassium nitrate anti-caking agent effect:

[0049] The above-mentioned potassium nitrate is packed in 50 kg, stacked in 20 layers, and stored for 1 month. The agglom...

Embodiment 3

[0051] Potassium nitrate anti-caking agent composition:

[0052] According to the mass fraction, the raw materials are composed of: water 35%, sodium dodecylsulfonate 25%, sodium naphthalenesulfonate formaldehyde condensate 15%, methylnaphthalenesulfonate sodium formaldehyde condensate 10%, sorbitan monopalmitate 5% %, polyethylene glycol-400 (average molecular weight 400) 2%, ethanol 8%.

[0053] Potassium nitrate anti-caking agent preparation:

[0054] First mix water and ethanol, then add sodium dodecylsulfonate, sodium naphthalenesulfonate formaldehyde condensate and sodium methylnaphthalenesulfonate formaldehyde condensate, stir well and then add sorbitan monopalmitate and polyethylene glycol -400 (average molecular weight 400), continue to stir until the dispersion is uniform.

[0055] Potassium nitrate anti-caking agent use:

[0056] Same as Example 1, except that the amount of anticaking agent is 3 kg / ton of potassium nitrate.

[0057] Potassium nitrate anti-caking...

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PUM

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Abstract

The invention relates to a potassium nitrate anti-blocking agent and preparation and application methods thereof. The anti-blocking agent is prepared from, by mass, 25%-55% of water, 15%-25% of crystal control agent, 15%-30% of dispersing agent, 0.5%-15% of wrapping agent, 0.5%-10% of emulgator and 2%-15% of diluents. The invention relates to the preparation method of the anti-blocking agent. The preparation method comprises the steps that sequential blending is carried out; stirring is carried out till even dispersing is achieved. During use, the anti-blocking agent is evenly smeared to the surfaces of potassium nitrate crystals after being atomized, and finally the anti-blocking agent and the potassium nitrate crystals are dried together. The anti-blocking agent and the preparation and application methods thereof have the advantages that anti-blocking performance is good, cost is low, the preparation method is simple, use is convenient, and normal production of potassium nitrate is not influenced, and good application prospects are achieved.

Description

Technical field: [0001] The invention belongs to the field of anti-caking of chemical fertilizers, and in particular relates to a potassium nitrate anti-caking agent and a preparation and use method thereof. Background technique: [0002] Potassium nitrate is a colorless transparent orthorhombic or rhombohedral crystal, commonly used in gunpowder, ceramics, glass, food manufacturing and other fields. Potassium nitrate is also an excellent nitrogen and potassium fertilizer, with a nutrient content of more than 58%, which contains about 13% of nitrate nitrogen and about 46% of K 2 O, great for use on crops. However, potassium nitrate is very easy to agglomerate and needs to be crushed during use, which brings great inconvenience to production. What's more serious is that potassium nitrate is an oxidizing agent, and when it is crushed, it is easy to explode due to impact, which brings great potential safety hazards. Therefore, the anti-caking work of potassium nitrate is ver...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05C5/02
CPCC05C5/02C05G3/20
Inventor 张营郭宗端裴海荣李伟李新柱胡兆平
Owner KINGENTA ECOLOGICAL ENG GRP
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