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Attapulgite clay suspending agent special for liquid fertilizer and preparation method

A technology for attapulgite clay and suspending agent, which is applied in the field of attapulgite clay suspending agent and preparation for liquid fertilizers, can solve the problems of limited use of attapulgite clay, loss of colloidal properties, poor dispersibility of attapulgite clay, etc. Interference, low cost, anti-sinking effect

Inactive Publication Date: 2017-07-21
CHENDU NEW KELI CHEM SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in practice, due to the influence of anions and cations in liquid fertilizers, the dispersibility of attapulgite clay in liquid fertilizers is poor, and in severe cases, the colloidal properties are lost due to the interference of liquid fertilizer ions
The use of attapulgite clay in liquid fertilizers is limited

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] The present embodiment provides a kind of preparation method of liquid fertilizer special attapulgite clay suspension, it comprises the following steps:

[0028] Ultrasonic pulverize 10 grams of attapulgite clay, then screen out attapulgite clay particles below 20 μm, then disperse in 0.5mol / L sulfonic acid solution to prepare a suspension, and place it at 80°C for 10 hours, then cool , washed with distilled water until neutral, and dried to obtain activated attapulgite clay;

[0029] Disperse the activated attapulgite clay into 200 grams of toluene, then add 3 grams of starch ether and react at 80°C for 4 hours, then dry and crystallize to obtain the attapulgite clay suspension for liquid fertilizer.

[0030] The special attapulgite clay suspension for liquid fertilizer prepared in the present embodiment is tested, and it is found that the special attapulgite clay suspension for liquid fertilizer is a core-shell structure, and it takes the attapulgite after the strippi...

Embodiment 2

[0033] Ultrasonic pulverize 10 grams of attapulgite clay, then screen out attapulgite clay particles below 30 μm, and then disperse them in a 1mol / L sulfonic acid solution to prepare a suspension, and place it at 80°C for 10 hours, and then cool it down. Wash with distilled water to neutrality, and obtain activated attapulgite clay after drying;

[0034] Disperse the activated attapulgite clay into 200 grams of toluene, then add 5 grams of xanthan gum and react at 80°C for 4 hours, then dry and crystallize to obtain the attapulgite clay suspension for liquid fertilizer.

[0035]The special attapulgite clay suspension for liquid fertilizer prepared in the present embodiment is tested, and it is found that the special attapulgite clay suspension for liquid fertilizer is a core-shell structure, and it takes the attapulgite after the stripping of sulfonic acid as the core, and the attapulgite after the stripping of the sulfonic acid The layer structure interface of the attapulgite...

Embodiment 3

[0038] Ultrasonic pulverize 10 grams of attapulgite clay, then screen out attapulgite clay particles below 20 μm, then disperse in 1 mol / L phytic acid solution to prepare a suspension, and place it at 80°C for 12 hours, then Cool, wash with distilled water until neutral, and dry to obtain activated attapulgite clay;

[0039] Disperse the activated attapulgite clay into 200 grams of toluene, then add 5 grams of guar gum and react at 80° C. for 4 hours, then dry and crystallize to obtain the attapulgite clay suspension for liquid fertilizer.

[0040] The special attapulgite clay suspension for liquid fertilizer prepared in the present embodiment was tested, and it was found that the special attapulgite clay suspension for liquid fertilizer was a core-shell structure, and it took the attapulgite after the phytic acid peeled off as the core, and the inositol six The layer structure interface of the attapulgite after phosphoric acid stripping is grafted with guar gum molecules, and...

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Abstract

The invention provides an attapulgite clay suspending agent special for a liquid fertilizer. The attapulgite clay suspending agent special for the liquid fertilizer is of a core-shell structure, wherein the core-shell structure uses attapulgite clay as a core, the surface of the attapulgite clay is grafted with a thickening agent, and the grafting rate of the thickening agent is 25%-40%. The attapulgite clay suspending agent special for the liquid fertilizer uses the attapulgite clay as the core, thickening agent molecules are grafted to the surface layer of the attapulgite clay, so that a three-dimensional structure easily soluble in water is formed by the attapulgite clay to reduce the interference of ions in the liquid fertilizer to the colloid property of the attapulgite clay, the stability and suspension properties of the attapulgite clay in the liquid fertilizer are improved, meanwhile fertilizer particles in the liquid fertilizer are prevented from sinking, and accordingly layering of liquid fertilizer can be prevented for a long time. In addition, the invention further provides a preparation method.

Description

technical field [0001] The invention belongs to the field of liquid fertilizer industry and relates to an attapulgite clay suspending agent special for liquid fertilizer and a preparation method. Background technique [0002] With the rapid development of the fertilizer industry, the development trend of high-concentration, liquefied, compounded and slow-acting fertilizers is becoming more and more obvious. Application technologies such as spraying, dripping, and irrigation have begun to be popularized and applied nationwide, and the matching water-soluble fertilizers are gradually being used. focus on. However, clear liquid fertilizers have high requirements on raw materials, which hinders the development of water-soluble fertilizers. Therefore, the development of liquid fertilizers containing insoluble fertilizers has brought new opportunities for the rapid development of water-soluble fertilizers. Especially in some agricultural developed countries, such as the United S...

Claims

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Application Information

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IPC IPC(8): C05G3/00
CPCC05G5/27
Inventor 陈庆王镭迪曾军堂
Owner CHENDU NEW KELI CHEM SCI CO LTD
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