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A kind of potassium sulfate particle and preparation method thereof

A technology of potassium sulfate and granules, applied in potash fertilizers, inorganic fertilizers, agriculture, etc., can solve the problems of potassium sulfate granules with strong acidity and easy to corrode containers, unstable quality of potassium sulfate granules, and acidic substances that are easy to corrode machines, etc., to achieve easy promotion, The effect of low production cost and wide application range

Active Publication Date: 2018-10-09
HEBEI MONBAND WATER SOLUBLE FERTILIZER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the process is complicated, and calcium element is introduced in the preparation process, and the prepared potassium sulfate particles have large particle size and low particle hardness, and are easy to pulverize during the preparation process and transportation process, and acidic substances are easy to produce during the production process. Corrosion of the machine, the quality of the prepared potassium sulfate particles is unstable, which is not conducive to mass industrial production, affects its appearance and internal quality, especially affects its use
[0004] The present invention aims at the deficiencies of the existing potassium sulfate particles, such as strong acidity and easy corrosion container, large particles, low hardness, unstable quality, unfavorable for industrialized production, etc., and provides a production of potassium sulfate with simple preparation method, stable quality and high hardness. Granule preparation method

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  • A kind of potassium sulfate particle and preparation method thereof
  • A kind of potassium sulfate particle and preparation method thereof

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Embodiment 1

[0038] The present embodiment provides a kind of potassium sulfate particle, and its raw material component comprises:

[0039] Agricultural potassium sulfate, 900 parts by weight;

[0040] Concentration is the potassium hydroxide solution of 50wt%, 10 parts by weight;

[0041] Borax decahydrate, 30 parts by weight.

[0042] Further, the preparation method of described potassium sulfate particle, comprises the steps:

[0043] (1) take described potassium sulfate and be pulverized into particle diameter and be 35 purpose powders;

[0044] (2) Add the alkalinity regulator to the potassium sulfate gained in step (1), stir for 15min at 300r / min, add the binding agent, continue to stir for 10min, granulate, sieve, Dry at 70°C for 2 minutes and cool to room temperature to obtain round potassium sulfate particles with a particle size of 2 mm. After testing, the hardness of the potassium sulfate particles is 40N; after being placed for 30 days, the hardness is 42N.

Embodiment 2

[0046] The present embodiment provides a kind of potassium sulfate particle, and its raw material component comprises:

[0047] Agricultural potassium sulfate, 965 parts by weight;

[0048] Concentration is the sodium hydroxide solution of 52wt%, 15 parts by weight;

[0049] Borax pentahydrate, 20 parts by weight;

[0050] Urea, 1 part by weight;

[0051] Ammonium sulfate, 20 parts by weight;

[0052] Compound containing trace elements, 15 parts by weight.

[0053] The trace element-containing compound is a mixture composed of zinc sulfate, ferrous sulfate and EDTA-Mn in a mass ratio of 1:1:1.

[0054] Further, the preparation method of described potassium sulfate particle, comprises the steps:

[0055] (1) Take the urea, ammonium sulfate, and potassium sulfate and pulverize them into particle diameters of 25 mesh powders respectively, and mix them uniformly to obtain mixed powders;

[0056] (2) Weigh the binder and stir it at 98°C to dissolve it in water, then cool it d...

Embodiment 3

[0060] The present embodiment provides a kind of potassium sulfate particle, and its raw material component comprises:

[0061] Agricultural potassium sulfate, 950 parts by weight;

[0062] Concentration is the sodium hydroxide solution of 60wt%, 12 parts by weight;

[0063] Sodium octaborate tetrahydrate, 25 parts by weight;

[0064] Urea, 90 parts by weight;

[0065] Ammonium sulfate, 1 part by weight;

[0066] Compound containing trace elements, 1 part by weight.

[0067] The trace element-containing compound is a mixture of zinc sulfate and ferrous sulfate with a mass ratio of 1:1.

[0068] Further, the preparation method of described potassium sulfate particle, comprises the steps:

[0069] (1) Take the urea, ammonium sulfate, and potassium sulfate and pulverize them into a particle diameter of 30 mesh powders respectively, and mix them uniformly to obtain mixed powders;

[0070] (2) Weigh the binder and stir it at 102°C to dissolve it in water, then cool it down to...

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Abstract

The invention relates to a potassium sulfate particle and a preparation method thereof. By adopting potassium sulfate, alkalinity regulator and binder as raw material components and performing appropriate matching, round potassium sulfate particles with a particle size of 2-4 mm is obtained, the hardness is high and is 40-50 N; when the placing time is longer, the particle hardness is higher, the stability is better, the quality is stable, and the problem that the potassium sulfate particles are atomized easily in the transportation process is solved effectively. The potassium sulfate particles can serve as a compound fertilizer and can also serve as a raw material for other mixing fertilizers.

Description

technical field [0001] The invention belongs to the field of fertilizers, and in particular relates to a potassium sulfate granule and a preparation method thereof. Background technique [0002] In recent years, in order to improve fertilization operations and adapt to mechanical fertilization, the fertilizer granulation method has been widely used. In particular, mechanical fertilization has become widely prevalent in recent years, and, as far as potassium sulfate is concerned, a spherical product with good fluidity has been urgently required. However, due to poor granulation of potassium sulfate, it is difficult to obtain granule products with particle size in the required range and good fertilizer efficiency. Moreover, due to the acidic influence of potassium sulfate, it is easy to corrode the mechanical instruments used in the granulation process or the mechanical fertilization process, causing problems such as high production costs. Generally, the hardness of potassiu...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05D1/02
Inventor 崔晓朋
Owner HEBEI MONBAND WATER SOLUBLE FERTILIZER CO LTD