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Big rounded-grain nitrogen potassium chlorine based binary compound fertilizer and preparation method

A nitrogen-potassium-chloride-based binary compound fertilizer, granular technology, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of good water solubility, difficult to spread, poor fluidity, etc., and achieves flexible fertilizer formula, low production cost, high intensity effect

Active Publication Date: 2013-01-30
武汉禾大科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to make up for the blank of this type of fertilizer in the current market, meet the special needs of nitrogen and potassium nutrients in the phosphorus-containing regional soil, and overcome the direct application of powdery fertilizer due to the use of powdery ammonium chloride and potassium chloride. Fertilization is inconvenient, granular fertilizers are prone to dust when loading and unloading, and are easy to agglomerate when stored for a long time, and are severely compacted, poor fluidity, difficult to spread during fertilization, and mobile fertilization cannot be realized. At the same time, powdered ammonium chloride and potassium chloride are water-soluble Well, it is easy to cause a series of problems such as excessive release of nutrients, burning crops, etc., and provide a kind of large-grained round nitrogen-potassium-chlorine-based binary compound fertilizer and its preparation method. The present invention utilizes the existing disc granulator or Drum granulator, in ammonium chloride and potassium chloride, add 5-10 kg / ton of fertilizer granulation aids to complete the preparation of large round granular nitrogen, potassium and chloride-based binary compound fertilizers, and produce granules High strength, so that the fertilizer is not easy to pulverize during production, transportation and storage

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The granulation aids are 30% of oxidized starch, 60% of pregelatinized starch, and 10% of stearyl glucoside. The above-mentioned raw materials are mixed uniformly to prepare the granulation aids. The oxidized starch, pregelatinized Both gelatinized starch and stearyl glucoside were purchased from the market.

[0028] Fertilizer type: large round granular nitrogen, potassium and chlorine based binary compound fertilizer (N—P 2 0 5 —K 2 O is 4-0-50)

[0029] Granulation process: disc granulation

[0030] Granulated fertilizer formula: powdered potassium chloride (K 2 O≥60) 834g

[0031] Powdered ammonium chloride (N ≥ 25.4) 158 grams,

[0032] Granulation aid 8 grams

[0033] The sum of each component is 1000 grams.

[0034] Large round granular nitrogen potassium chloride N—P 2 0 5 —K 2 O is 4-0-50 binary compound fertilizer production process:

[0035] (1) Mix 834 grams of powdered potassium chloride with 158 grams of ammonium chloride.

[0036] (2) Put the...

Embodiment 2

[0043] The granulation aids are 20% of oxidized starch, 60% of pregelatinized starch, and 20% of hexadecyl glucoside by mass percentage of each component. The granulation aids are prepared by mixing the above-mentioned raw materials, oxidized starch, pregelatinized Both gelatinized starch and cetyl glucoside were purchased from the market.

[0044] Fertilizer type: large round granular nitrogen, potassium and chlorine based binary compound fertilizer (N—P 2 0 5 —K 2 O is 8-0-40)

[0045] Granulation process: disc granulation

[0046] Granulated fertilizer formula: powdered potassium chloride (K 2 O≥60) 669g

[0047] Powdered ammonium chloride (N ≥ 25.4) 326 grams,

[0048] Granulation aid 5g

[0049] The sum of each component is 1000 grams.

[0050] Large round granular nitrogen potassium chloride N—P 2 0 5 —K 2 O is 8-0-40 binary compound fertilizer production process:

[0051] (1) Mix 669 grams of powdered potassium chloride with 326 grams of ammonium chloride. ...

Embodiment 3

[0059] The granulation aids are 40% of oxidized starch, 55% of pregelatinized starch, and 5% of dodecyl glucoside. The above raw materials are mixed uniformly to prepare the granulation aids. The oxidized starch, pregelatinized Both gelatinized starch and lauryl glucoside were purchased from the market.

[0060] Fertilizer type: large round granular nitrogen, potassium and chlorine based binary compound fertilizer (N—P 2 0 5 —K2 O is 12.5-0-30)

[0061] Granulation process: disc granulation

[0062] Granulated fertilizer formula: powdered potassium chloride (K 2 O≥60) 500g

[0063] Powdered ammonium chloride (N ≥ 25.4) 490 grams,

[0064] Granulation aid 10g

[0065] The sum of each component is 1000 grams.

[0066] Large round granular nitrogen potassium chloride N—P 2 0 5 —K 2 O is 12.5-0-30 binary compound fertilizer production process:

[0067] (1) Mix 500 grams of powdered potassium chloride and 490 grams of ammonium chloride evenly.

[0068] (2) Put the mixed...

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PUM

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Abstract

The invention relates to a big rounded-grain nitrogen potassium chlorine based binary compound fertilizer and a preparation method of the compound fertilizer. Main raw materials of the nitrogen potassium chlorine based binary compound fertilizer are powdery ammonium chloride and powdery potassium chloride, a disk or a drum serve as prilling equipment, a prilling assistant is used for forming the big rounded-grain binary compound fertilizer. The big rounded-grain nitrogen potassium chlorine based binary compound fertilizer is produced, as the prilling and the production are difficult, no similar raw material-shaped nitrogen potassium fertilizer exist in the market at present, and in addition, the fertilizer can meet special requirements for nitrogen and potassium nutrient of region soil containing phosphorus. Compared with an existing manufacture process of the compound fertilizer, the compound fertilizer has the advantages of (1) being low in fertilizer production, (2) being flexible in fertilizer formula, capable of arbitrarily adjusting proportion of the ammonium chloride and the potassium chloride and capable of effectively prilling under effects of the prilling assistant; (3) enabling prilling fertilizers to be high in particle strength and enabling average smashing resisting pressure to be 20-40N; (4) having a wide market; and (5) promoting an additional value of the ammonium chloride and having big profits.

Description

technical field [0001] The present invention relates to a large granular nitrogen potassium chloride base binary compound fertilizer and its preparation method. The main raw materials of the nitrogen potassium chloride base binary compound fertilizer are powdery ammonium chloride and powdery potassium chloride. Drum granulation equipment, using granulation aids to make large round binary compound fertilizers. It fills the gap of this type of fertilizer in the current market and meets the special needs of nitrogen and potassium nutrients in the soil of phosphorus-containing regions. Background technique [0002] At present, there are many kinds of compound fertilizers on the market, such as diammonium phosphate and monoammonium phosphate as binary nitrogen and phosphorus fertilizers, and various chlorine-based, nitro-based, urea-based and sulfur-based NPK ternary compound fertilizers. However, there is no binary fertilizer with nitrogen and potassium nutrients. Potassium chl...

Claims

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Application Information

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IPC IPC(8): C05G3/00
Inventor 王仁宗操素芬刘裕
Owner 武汉禾大科技有限公司
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