Preparation process of high tower fulvic acid and ureaformaldehyde compound fertilizer

A technology of fulvic acid urea formaldehyde and fulvic acid urea, which is applied in the field of compound fertilizers, can solve the problems of difficulty in production and manufacturing, poor exhaust gas treatment and high technical content, and achieves the advantages of ensuring fluidity, promoting healthy growth of plants, and promoting plant absorption. Effect

Inactive Publication Date: 2017-12-01
河北中仁化肥集团有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantages of existing craft products are high technical content, high risk index, and poor tail gas treatment will cause air pollution, which brings great difficulty to production and manufacturing

Method used

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  • Preparation process of high tower fulvic acid and ureaformaldehyde compound fertilizer
  • Preparation process of high tower fulvic acid and ureaformaldehyde compound fertilizer
  • Preparation process of high tower fulvic acid and ureaformaldehyde compound fertilizer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment 1 prepares 1000kg high tower fulvic acid urea-formaldehyde compound fertilizer

[0022] A. Preparation of primary mixed material: Weigh raw materials with electronic feeder, weigh 100kg of monoammonium phosphate with P≥55%, 300kg of potassium sulfate with K≥52%, 100kg of ammonium sulfate, 0.5kg of cyclodextrin, plant Enzyme 0.2kg, selenium fertilizer 1kg, zinc fertilizer 1kg, after being pulverized, place in the high tower first-level mixing tank and mix, control the temperature of the high tower first-level mixing tank to be 100-125°C, and the stirring speed is 55-85r / min to obtain primary mixture;

[0023] B. Preparation of fulvic acid urea-formaldehyde liquid: the total amount of potassium fulvate, formaldehyde and urea is 497.3kg, and then potassium fulvate, formaldehyde and urea are added to the reaction kettle according to the mass ratio of 0.5:50:250. Melt at low temperature to form fulvic acid urea-formaldehyde liquid, and the melting temperature is ...

Embodiment 2

[0028] Embodiment 2 prepares 1000kg high tower fulvic acid urea-formaldehyde compound fertilizer

[0029]A. Preparation of primary mixed material: Weigh raw materials with electronic feeder, weigh 200kg of monoammonium phosphate with P≥55%, 200kg of potassium sulfate with K≥52%, 150kg of ammonium sulfate, 0.1kg of cyclodextrin, plant 0.5kg of enzyme, 1.5kg of selenium fertilizer, 1.5kg of zinc fertilizer, after being pulverized, put them in the first-level mixing tank of the high tower and mix them. , to obtain the primary mixed material;

[0030] B. Preparation of fulvic acid urea-formaldehyde liquid: the total amount of potassium fulvate, formaldehyde and urea is 446.4kg, and then potassium fulvate, formaldehyde and urea are added to the reaction kettle according to the mass ratio of 0.2:75:350. Melt at low temperature to form fulvic acid urea-formaldehyde liquid, and the melting temperature is 115-125°C to obtain fulvic acid urea-formaldehyde liquid;

[0031] C. Preparati...

Embodiment 3

[0033] Embodiment 3 prepares 1000kg high tower fulvic acid urea-formaldehyde compound fertilizer

[0034] A. Preparation of primary mixed material: Weigh raw materials with electronic feeder, weigh 250kg of monoammonium phosphate with P≥55%, 350kg of potassium sulfate with K≥52%, 130kg of ammonium sulfate, 0.5kg of cyclodextrin, plant 0.1kg of enzyme, 1.2kg of selenium fertilizer, 1.2kg of zinc fertilizer, crushed and mixed in the first-level mixing tank of the high tower, the temperature of the first-level mixing tank of the high tower is controlled at 105-120°C, and the stirring speed is 70-80r / min , to obtain the primary mixed material;

[0035] B. Preparation of fulvic acid urea-formaldehyde liquid: the total amount of potassium fulvate, formaldehyde and urea is 267kg, and then potassium fulvate, formaldehyde and urea are added to the reaction kettle according to the mass ratio of 0.3:60:330. Melting reaction into fulvic acid urea-formaldehyde liquid, the melting temperat...

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Abstract

The invention relates to a preparation process of a high tower fulvic acid and ureaformaldehyde compound fertilizer and belongs to the technical field of compound fertilizers. By adopting high tower prilling production, the preparation process comprises the following steps: A, preparing a primary mixed material; B, preparing a fulvic acid and ureaformaldehyde liquid; and C, preparing the fulvic acid and ureaformaldehyde compound fertilizer. The preparation process is simple to operate, easy to control and high in rate of finished products, and the produced compound fertilizer is stable in product quality, low in operating cost, low in energy consumption and free of pollution.

Description

technical field [0001] The invention belongs to the technical field of compound fertilizers and relates to fulvic acid urea-formaldehyde compound fertilizers, in particular to a preparation process of high-tower fulvic acid urea-formaldehyde compound fertilizers produced by high-tower granulation. The preparation process is simple in operation, easy to control, high in finished product rate, high in particle percentage content in the produced compound fertilizer product, stable in quality of the prepared product, low in operating cost, low in energy and pollution-free. Background technique [0002] According to the characteristics of soil fertility and the demand for nutrients in the growing season of crops, it is the general trend of the development of the chemical fertilizer industry in the world today to develop and produce various high-efficiency, environmentally friendly and fully water-soluble compound fertilizers. General direction. For fertilizer companies, seize th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/08C05G3/80C05G3/90
CPCC05B7/00C05G3/00C05G3/80C05G3/90C05C3/00C05C9/02C05D1/02C05D9/02C05F11/00C05F11/02
Inventor 宋维谦刘保福李春军
Owner 河北中仁化肥集团有限公司
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