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Preparation method of fertilizer anti-caking agents

An anti-caking agent and fertilizer technology, which is applied in fertilization devices, fertilizer mixtures, applications, etc., can solve problems such as difficult self-degradation, affecting fertilizer efficiency, and reducing production costs, so as to alleviate economic difficulties, improve fertilizer usage, and reduce The effect of production costs

Inactive Publication Date: 2015-12-02
JIANGSU JINYU ENVIRONMENTAL ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem mainly solved by the present invention: Aiming at the serious loss of fertilizer caused by the agglomeration of chemical fertilizers and affecting the fertilizer efficiency, in the commonly used anti-agglomeration method, there is a problem that the cost is high, it is not easy to degrade by itself, and the soil ecological environment is seriously polluted. Provide A preparation method of chemical fertilizer anti-caking agent is proposed. This method uses waste sawdust as raw material, which reduces production cost. Firstly, the sawdust is carbonized, crushed into powder, added in the saponification process of lard, and the saponified oil is absorbed, and then Then add sodium dodecylsulfonate and polyacrylamide, stir evenly, finally add 2-hydroxyethyltrimethylammonium chloride, and spray dry to obtain the anti-caking agent for chemical fertilizers of the present invention

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0018] First, take 8kg wood chips and put them into an extruder to extrude them into blocks, then put them into a carbonization furnace for 1 hour, and set the temperature at 250°C. Grind into 200-mesh powder; then take 3kg of lard and put it into a container, then add 2L of ethanol solution with a mass fraction of 96% to it, stir and heat, and set the temperature to 40°C. After the lard is completely dissolved, put the above-mentioned Put the powder into a container, then add 1L of potassium hydroxide solution with a mass fraction of 35%, stir for 40min, then cool to 20°C, and filter; then air-dry the above obtained filtrate naturally, put it in a container, Add water to it to submerge the filtrate by 2cm, then add 800g sodium dodecylsulfonate to it, stir evenly, set the temperature at 35°C, then add 600g polyacrylamide to it, and stir for 2h; then wait until the above stirring is completed , stand still for 15 minutes, add 145g of 2-hydroxyethyltrimethylammonium chloride to ...

example 2

[0021] Firstly, take 9kg of sawdust and put it into an extruder to extrude it into blocks, then put it into a carbonization furnace for 1.5 hours, and set the temperature at 280°C. After the carbonization is completed, take it out and cool it to 32°C, and put it into a pulverizer , crushed into 250-mesh powder; then take 3.5kg lard and put it into a container, then add 2.5L of ethanol solution with a mass fraction of 96% to it, stir and heat, and set the temperature to 45°C. After the lard is completely dissolved, Put the powder obtained above into a container, then add 2L of potassium hydroxide solution with a mass fraction of 35% to it, stir for 45min, then cool to 23°C, and filter; In the container, add water to it to submerge the filtrate by 2.5cm, then add 850g of sodium dodecylsulfonate to it, stir evenly, set the temperature at 38°C, then add 700g of polyacrylamide to it, and stir for 2.5h; then After the above stirring is completed, let it stand for 18 minutes, add 150...

example 3

[0024] First take 10kg of sawdust and put it into an extruder to extrude it into blocks, then put it into a carbonization furnace for 2 hours, and set the temperature at 290°C. After carbonization, take it out and cool it to 35°C, and put it into a pulverizer. Grind into 300-mesh powder; then take 4kg of lard and put it into a container, add 3L of ethanol solution with a mass fraction of 96% to it, stir and heat, and set the temperature to 50°C. After the lard is completely dissolved, put the above-mentioned Put the powder into a container, then add 3L of potassium hydroxide solution with a mass fraction of 35%, stir for 50min, then cool to 25°C, and filter; then air-dry the above-mentioned obtained filtrate naturally, put it in a container, Add water to it to submerge the filtrate by 3cm, then add 900g sodium dodecylsulfonate to it, stir evenly, set the temperature to 40°C, then add 800g polyacrylamide to it, and stir for 3h; then wait until the above stirring is completed , ...

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Abstract

The invention discloses a preparation method of fertilizer anti-caking agents and belongs to the technical field of fertilizer additives. According to the preparation method, waste saw dust serves as a raw material, and production cost is reduced. Firstly, the saw dust is carbonized, the carbonized saw dust is smashed into powder, and the power is added in the lard oil saponification process, and saponified grease is adsorbed; then, sodium dodecyl sulfate and polyacrylamide are added and evenly stirred; and finally, choline chloride is added, and spraying and drying are performed so that the fertilizer anti-caking agents can be prepared. As is proved by the living example, the method is easy to operate and implement, and the method is unique and novel. The fertilizer anti-caking agents prepared through the method are added into fertilizer to be anti-caked and evenly stirred, temperature is controlled to be 23-25 DEG C, mixtures are stored for 10-15 days under the open condition, the fertilizer caking rate is reduced by more than 85%, the fertilizer using rate is increased by more than 5%, and the fertilizer hardening problem is effectively inhibited.

Description

technical field [0001] The invention discloses a preparation method of a chemical fertilizer anti-caking agent, which belongs to the technical field of fertilizer additives. Background technique [0002] Fertilizer agglomeration is a common phenomenon in the process of fertilizer production, transportation and storage, which has been plagued by the rapid development of the fertilizer industry. Caking also brings great troubles to fertilizer storage, transportation and use, and causes 60% fertilizer loss, which seriously affects fertilizer efficiency. [0003] Correctly solving the problem of chemical fertilizer agglomeration is one of the effective ways to improve the quality and cost performance of chemical fertilizer products. At present, in addition to taking measures in the process of fertilizer production, packaging, storage and transportation, adding anti-caking to fertilizer is the most effective anti-caking method. Among various anti-caking methods, the current che...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 李锦宇宋国张帆
Owner JIANGSU JINYU ENVIRONMENTAL ENG
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