Preparation method and application of modified humic acid quaternary ammonium salt

A humate, quaternary ammonium salt technology, applied in plant growth regulators, chemicals for biological control, pest control and other directions, to achieve high application value, growth promotion, and good activity.

Inactive Publication Date: 2013-04-03
GUIZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of modified humic acid quaternary ammonium salt as a plant growth regulator has not been reported yet.

Method used

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  • Preparation method and application of modified humic acid quaternary ammonium salt
  • Preparation method and application of modified humic acid quaternary ammonium salt
  • Preparation method and application of modified humic acid quaternary ammonium salt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Embodiment one: Modified humic acid quaternary ammonium salt a preparation of

[0013] (1) Break the weathered coal with a pulverizer, pass through a 70-mesh sieve, take 10 g of weathered coal containing 35% humic acid, add 50 mL of hydrochloric acid with a mass concentration of 2% at 40 °C, and mix it under stirring. After reacting for 30 min, 15% sodium hydroxide was added to react until the pH of the system was 10.0. Continue to stir for 15 min, stop the reaction, centrifuge at a high speed of 4500 r / min, take the upper liquid, and dry and dehydrate with a rotary evaporator to obtain a black solid that is sodium humate.

[0014] (2) Take 3.0 g of sodium humate prepared in step (1) and place it in a 100 mL three-necked flask equipped with a condensing device, stir and dissolve it with 45 mL of water at room temperature, and take 1.3 g of 3-chloro-2-hydroxypropyl tris Dissolve methyl ammonium chloride with a small amount of water and add dropwise through a constant ...

Embodiment 2

[0015] Embodiment two: modified humic acid quaternary ammonium salt b preparation of

[0016] It was synthesized according to the conditions and method of Example 1, except that 1.4 g of 3-chloro-2-hydroxypropyltrimethylammonium nitrate was added in step (2).

Embodiment 3

[0017] Embodiment three: modified humic acid quaternary ammonium salt c preparation of

[0018] It was synthesized according to the conditions and method of Example 1, except that 1.2 g of 3-chloro-2-hydroxypropyltrimethylammonium hydrogensulfate was added in step (2).

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Abstract

The invention discloses a preparation method and application of modified humic acid quaternary ammonium salt. The preparation method comprises the steps of adding a certain amount of inorganic or organic acid to crushed raw materials containing humic acid under the heating condition, stirring to react, adding a certain amount of alkaline matter to react, preparing humate, reacting with quaternary ammonium salt, treating gross products, and obtaining the modified humic acid quaternary ammonium salt. The modified humic acid quaternary ammonium salt prepared with the method has better water solubility than unmodified humic acid, and most modified humic acid quaternary ammonium salt represents good plant growth adjustment activity, has better activity than the unmodified humic acid, and can effectively promote growth of crops and flowers.

Description

technical field [0001] The invention belongs to the field of agricultural chemicals, in particular to a preparation method and application of a modified humic acid quaternary ammonium salt. Background technique [0002] Humic acid (HA) is a macromolecular organic weak acid with a molecular weight between 1000 and 20000, and it is an aromatic compound. The components of humic acid can be divided into three components according to their solubility in solvents: fulvic acid, brown humic acid, and black humic acid. The main elements of humic acid are carbon, hydrogen, oxygen, nitrogen and sulfur. Humic acid widely exists in soil, lakes, rivers, oceans, as well as peat, lignite, and weathered coal. The application of humic acid has a history of more than 400 years. [0003] Because brown humic acid and black humic acid in humic acid are almost insoluble in water and have low biological activity, their practical application is greatly limited. Therefore, it is imperative to see...

Claims

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Application Information

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IPC IPC(8): C08H99/00C07G99/00A01P21/00
Inventor 宋宝安白志平徐维明胡德禹薛伟柏松吴剑王洪涛贺银菊谢瑛汤承浩
Owner GUIZHOU UNIV
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