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Inorganic compound fertilizer containing micro-element fertilizer

A compound fertilizer and micro-fertilizer technology, applied in the field of agricultural fertilizers, can solve the problems of limited utilization rate, less plant absorption, loss of activity, etc., and achieve the effect of uniform particles, high particle strength, and reduced drying intensity

Inactive Publication Date: 2016-11-23
江苏瑞诚农业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Trace elements as micro-fertilizers have the following disadvantages if they are directly applied. The reason is: because most of the trace elements used in my country exist as divalent metal ions, once they are applied to the soil, due to the presence of a large amount of negative bivalent carbonate and negative Trivalent phosphate can easily react with it to form water-insoluble carbonates and phosphates, most of which will lose their activity, and very little can be absorbed by plants, and the utilization rate is limited to a certain extent, so even if trace elements are applied, It is not equal to being absorbed by crops, which is why trace elements have been applied to the soil, but crops sometimes still have symptoms of deficiency

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Send the formula amount of sulfuric acid into the reaction tank first, then send the formula amount of monoammonium phosphate into the reaction tank, stir to allow it to fully react for 0.20 hours, then add the formula amount of liquid ammonia to make it react violently, the time is 0.40 Hours, the slurry temperature reached 75°C after the reaction was completed. Send the reaction slurry with a temperature of 75°C into the mixed acid preparation tank, add the prescribed amount of potassium chloride and micro-fertilizer, and stir evenly. The above mixture is sent to the granulator to granulate under the condition of making full use of the waste heat. After the granulation is completed, the fertilizer granules are sent to the dryer for drying. The drying temperature is 40°C and the drying time is 2 hours. The finished product is obtained after drying.

Embodiment 2

[0017] Send the formula amount of sulfuric acid into the reaction tank first, then send the formula amount of monoammonium phosphate into the reaction tank, stir to allow it to fully react for 0.21 hours, and then add the formula amount of liquid ammonia to cause a violent reaction, the time is 0.42 Hours, the slurry temperature reached 77.5°C after the reaction was completed. Send the reaction slurry with a temperature of 77.5°C into the mixed acid preparation tank, add the prescribed amount of potassium chloride and micro-fertilizer, and stir evenly. The above mixture is sent to the granulator to granulate under the condition of making full use of the waste heat. After the granulation is completed, the fertilizer granules are sent to the dryer for drying. The drying temperature is 45°C and the drying time is 1.75 hours. The finished product is obtained after drying.

Embodiment 3

[0019] Send the formula amount of sulfuric acid into the reaction tank first, then send the formula amount of monoammonium phosphate into the reaction tank, stir to allow it to fully react for 0.22 hours, then add the formula amount of liquid ammonia to cause a violent reaction, the time is 0.44 Hours, the temperature of the slurry reached 80°C after the reaction was completed. Send the reaction slurry with a temperature of 80°C into the mixed acid preparation tank, add the prescribed amount of potassium chloride and micro-fertilizer, and stir evenly. The above mixture is sent to the granulator to granulate under the condition of making full use of the waste heat. After the granulation is completed, the fertilizer granules are sent to the dryer for drying. The drying temperature is 50°C and the drying time is 1.5 hours. The finished product is obtained after drying.

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Abstract

The invention discloses a production method for an inorganic compound fertilizer containing a micro-element fertilizer, and the method belongs to the field of agricultural fertilizer; the inorganic compound fertilizer comprises the used raw materials by weight: 21%-23% of sulfuric acid, 23%-25% of liquid ammonia, 28% of monoammonium phosphate, 24% of potassium chloride and 2% of the micro-element fertilizer. The product is prepared through the steps of inorganic fertilizer production, mixing of all the raw materials, granulation and drying. The production method saves steam, and reduces the drying strength; the product has the advantages of uniform particles, smooth, round and normal appearance, and high particle strength, and contains rich inorganic substances and micro-element fertilizer; when the inorganic compound fertilizer is applied in soil, the fertilizer efficiency is remarkable, and microelements can be replenished to crops.

Description

technical field [0001] The invention belongs to the field of agricultural fertilizers, in particular to a method for producing inorganic compound fertilizers containing micronutrients. Background technique [0002] Inorganic compound fertilizer is called chemical fertilizer for short. It has the characteristics of simple composition, high active ingredient content, soluble in water, fast decomposition, and easy absorption by roots, so it is called quick-acting fertilizer, including nitrogen, phosphorus, and potassium fertilizers. Fertilization, improving fertilizer use efficiency, and promoting high and stable crop yields play a very important role. The production of inorganic compound fertilizers can be changed according to the texture and nutritional status of the soil in the field. When designing the formula, it should be considered to change the proportion of inorganic fertilizers and the amount of trace elements added, so as to supplement the nutrients needed by crops i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G1/06
Inventor 王义胜
Owner 江苏瑞诚农业科技有限公司
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