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Disintegrating magnesium-containing granular fertilizer and preparation method thereof

A technology for magnesium granules and fertilizers, which is applied in the field of disintegrating magnesium-containing granular fertilizers and their preparation, and can solve the problems of unspecified disintegration performance of magnesium-containing granular fertilizers, unspecified disintegration time limits of granular fertilizers, and reduced content of active ingredients in fertilizers, etc. , to achieve the effect of convenient mechanical fertilization, smooth particles and high utilization rate

Active Publication Date: 2018-05-18
营口菱镁化工集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In the prior art: Chinese patent CN1014513096A discloses a preparation method of magnesium-containing granular fertilizer, its disadvantage is that it only solves the preparation method of magnesium-containing granular fertilizer, does not explain the disintegration performance of magnesium-containing granular fertilizer, and the production process is complicated, The cost is high; Chinese patent CN 1785914A discloses a kind of brucite granular fertilizer and its preparation method, and its shortcoming does not explain the disintegration time limit of granular fertilizer, the disintegration performance is poor, and the fertilizer function is single; Chinese patent CN106220338A discloses a kind of fertilizer with The disintegrating agent is used in the production of round particle mineral fertilizer granulation. By adding the disintegrating agent to realize the disintegration of the fertilizer particles, the content of the effective components of the fertilizer is reduced, resulting in a decrease in the utilization rate of the fertilizer and high production costs; Chinese patent CN102775220A discloses a method that can The disintegrating round particle sulfur magnesium fertilizer and its preparation method have the disadvantages of poor quick-acting performance, low magnesium oxide content, and too single fertilizer functionality

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  • Disintegrating magnesium-containing granular fertilizer and preparation method thereof
  • Disintegrating magnesium-containing granular fertilizer and preparation method thereof
  • Disintegrating magnesium-containing granular fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] A disintegrating magnesium-containing granular fertilizer is provided in this example, which is prepared according to the following proportions and methods: (1) Prepare raw materials: take 80 kg of magnesium-containing raw materials (among them: brucite powder 65 kg, dolomite powder 15 kg) and mix evenly 20kg (wherein: magnesium sulfate monohydrate powder 17kg, magnesium carbonate powder 3kg) of balling aid is taken and mixed uniformly; Get oxalic acid and be dissolved in water, be mixed with the oxalic acid solution that 12kg mass concentration is 20%;

[0028] (2) Wetting treatment: put the magnesium-containing raw material mixed uniformly in the step (1) into the granulator, spray the organic acid solution prepared in the step (1) in the form of spray during operation, and perform wetting Wet acidification treatment;

[0029] (3) Balling and granulation: on the basis of step (2), alternately add the balling aid prepared in step (1) and spray organic acid solution to ...

Embodiment 2

[0036] This example provides a disintegrating magnesium-containing granular fertilizer, which is prepared according to the following ratio and method:

[0037] (1) Prepare raw materials: take 85kg of magnesium-containing raw materials (including 70kg of brucite powder and 15kg of dolomite powder) and mix them evenly; The acid is dissolved in water, and 15kg of oxalic acid solution with a mass concentration of 15% is prepared;

[0038] (2) Wetting treatment: put the magnesium-containing raw material mixed uniformly in the step (1) into the granulator, spray the organic acid solution prepared in the step (1) in the form of spray during operation, and perform wetting Wet acidification treatment;

[0039] (3) Balling and granulation: on the basis of step (2), alternately add the balling aid prepared in step (1) and spray organic acid solution to carry out balling and granulation to obtain round granular materials; The disc inclination angle is 30°, and the rotation speed is 35-40r...

Embodiment 3

[0046] This example provides a disintegrating magnesium-containing granular fertilizer, which is prepared according to the following ratio and method:

[0047] (1) Prepare raw materials: take 90kg of magnesium-containing raw materials (including 75kg of brucite powder and 15kg of dolomite powder) and mix them evenly; Dissolve the acid in water, and prepare 16kg of oxalic acid solution with a mass concentration of 10%;

[0048] (2) Wetting treatment: put the magnesium-containing raw material mixed uniformly in the step (1) into the granulator, spray the organic acid solution prepared in the step (1) in the form of spray during operation, and perform wetting Wet acidification treatment;

[0049] (3) Balling and granulation: on the basis of step (2), alternately add the balling aid prepared in step (1) and spray organic acid solution to carry out balling and granulation to obtain round granular materials; The disc inclination angle is 30°, and the rotation speed is 35-40r / min; ...

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Abstract

The invention relates to the technical field of agricultural fertilizer, and particularly provides disintegrating magnesium-containing granular fertilizer and a preparation method thereof. The magnesium-containing granular fertilizer is prepared from the following raw materials in parts by mass: 60-90 parts of a magnesium-containing raw material, 10-40 parts of a ball forming aid, 12-20 parts of an organic acid solution with mass concentration of 5%-20%. The provided disintegrating magnesium-containing granular fertilizer has the characteristics of short disintegration time limit, high disintegration rate, smooth and uniform granules and high hardness and can be disintegrated or dissolved rapidly when in water due to good disintegration performance, the utilization rate of nutrients in soil by crops is increased, and the growth promoting effect is good; a production process of the disintegrating magnesium-containing granular fertilizer is simple and low in cost, mechanical fertilization is convenient, and environmental pollution is reduced.

Description

technical field [0001] The invention relates to the technical field of agricultural fertilizers, in particular to a disintegrating magnesium-containing granular fertilizer and a preparation method thereof. Background technique [0002] Magnesium is an essential medium nutrient element for crops. It is a component of chlorophyll and can promote photosynthesis. It is an activator of many enzymes and can promote the synthesis of various substances, thereby improving the quality of fruits and vegetables. It plays an important role in plant nutrition. Magnesium is suitable for various crops and phosphorus-deficient soils, especially for acidic red soils with serious magnesium leaching in the south. [0003] Magnesium fertilizer belongs to the medium element fertilizer. For a long time, it has only paid attention to the application of large amounts of elements (nitrogen, phosphorus, potassium, referred to as NPK), while ignoring the application of medium elements, which limits the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05G3/04C05G3/80
CPCC05D5/00C05G3/00C05G5/12C05G3/80C05F11/00
Inventor 李红杨云洪李长龙车太龙
Owner 营口菱镁化工集团有限公司
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