Versatile anti caking additive for chemical fertilizer and its manufacturing methods

The technology of an anti-caking agent and a manufacturing method, which is applied in the directions of application, fertilization device, fertilizer mixture, etc., can solve the problems of single applicability, etc., and achieve the effect of wide application range, easy washing, and keeping clean and tidy.

Inactive Publication Date: 2003-07-23
戴星
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The chemical fertilizer anti-caking agent composed of these two formulas has relatively single applicability, and is usually only suitable for chlorine-based compound fertilizers, sulfur-based compound fertilizers and urea-based compound fertilizers

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] Embodiment one: its composition and proportioning are by (weight percentage) in the embodiment of the present invention:

[0019] Take stearic acid 80 and add it to the reaction kettle, and carry out steam heating. The steam pressure is controlled at 0.3-0.6Mpa, and the heating temperature is: 80°C to melt the stearic acid in the reaction kettle. Turn on the vacuum pump and control the vacuum degree at 0.07- 0.09Mpa. Then extract and add monoethanolamine to the same reaction kettle, continue heating, and heat the temperature to 115 ° C, then add sodium hydroxide to 0.2 of the weight of stearic acid and monoethanolamine, and react the three compounds in the reaction kettle while stirring , the stirring reaction time is 3-4 hours. After that, the vacuum pump and steam were turned off to cool down the reaction mass to 85°C. Then the above-mentioned reactants are input into a slicer, sliced ​​when the temperature drops to normal temperature, and then packed into bags afte...

Embodiment 2

[0026] Embodiment two: its composition and proportioning are by (weight percentage) in the embodiment of the present invention:

[0027] The following process conditions are adopted: take stearic acid: 82, steam pressure: 0.3-0.6Mpa, heating temperature: 85°C, vacuum degree: 0.07-0.09Mpa, add ethanolamine in the same reaction kettle: 18, continue heating temperature: 120 °C, the reaction time is 7.5 hours, and the process steps in Example 1 can also be used to make a light brown flake anti-caking agent that meets the physical characteristics and high quality.

Embodiment 3

[0028] Embodiment three: its composition and proportioning are by (weight percentage) in the embodiment of the present invention:

[0029] The following process conditions are adopted: take stearic acid: 83, steam pressure: 0.3-0.6Mpa, heating temperature: 90°C, vacuum degree: 0.07-0.09Mpa, add monoethanolamine: 17 to the same reaction kettle, continue heating temperature: 130 ℃, the reaction time is 8 hours, and the index of physical properties in the first embodiment can also be made by adopting the process steps in the first and second embodiments. The anti-caking agent is not only suitable for various compound fertilizers, but also expands the scope of application to high-nitrogen urea-based and nitro-based compound fertilizers. Therefore, it is an upgraded variety among high-quality fertilizer anti-caking agents.

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Abstract

A broad-spectrum ant-blocking agent for chemical fertilizer is prepared from stearic acid and monoethanolamine through heating, reaction while stirring, cooling and slicing. Its advantages are high effect, broad spectrum, and no poison and pollution.

Description

Technical field: [0001] The invention relates to a wide-purpose chemical fertilizer anti-caking agent and a manufacturing method thereof, belonging to the technical field of chemical fertilizer auxiliary production. Background technique: [0002] In the production of chemical fertilizers, such as chemical fertilizers without chemical fertilizer anti-caking agents, because of factors such as easy absorption of moisture in the air and long storage time, heavy pressure, etc., the chemical fertilizers will be agglomerated and pulverized, making it difficult to use during the use of chemical fertilizers. caused many difficulties. Before the present invention was made, the chemical fertilizer anti-caking agent added in the past chemical fertilizer production was mainly processed by mixing industrial paraffin and ammonium amine. The fertilizer anti-caking agent composed of the two formulas has relatively single applicability, and is usually only suitable for chlorine-based compoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J2/30C05G3/00
Inventor 戴星
Owner 戴星
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