Biochemistry fulvic acid water-loss reducer and preparation method thereof

A biochemical fulvic acid and water-retaining agent technology, applied in the direction of organic fertilizers, fertilizer mixtures, fertilization devices, etc., can solve the problems of large-scale promotion restrictions, reduce raw material costs, poor fertilizer efficiency and activity, etc., and achieve the benefits of large-scale promotion , to achieve large-scale production and reduce production costs

Inactive Publication Date: 2008-07-09
师进
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the use of water-retaining agents is basically soil mixed application, furrow application, hole application, and root dipping, and it cannot be sprayed, which limits its large-scale promotion.
[0003] Chinese patent 02147788 discloses a preparation method of fulvic acid compound fertilizer, the product has no water retention and moisture absorption effect, and the effect of increasing production in dry farming and water-saving agriculture is not significant; Chinese patent 200510090362 discloses a humic acid-based super water-retaining agent and its preparation method, the water-retaining agent prepared by this method has high gel strength, is not conducive to foliage spraying, and has poor biological activity; Chinese patent 200310121061 discloses a starch organic-inorganic composite water-retaining agent, which reduces the cost of raw materials. The activity is poor, and it cannot be used for spraying

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1. Add 45% acrylamide aqueous solution to the mixer, adjust the pH value of the system to 5-7 with 50% sodium hydroxide aqueous solution, cool to room temperature, add 0.1% acrylamide by mass and 1% concentration N, N-methylenebisacrylamide aqueous solution, stir evenly, and then add attapulgite with 100% of the total mass of the system, 10% biochemical fulvic acid, and 10% potassium sulfite solution at a concentration of 0.1% in the system , 0.1% potassium metabisulfite solution with a concentration of 10%, when the temperature is raised to 70°C, polymerize for 3 hours, the polymerization system becomes a yellow-black colloid, and then the colloid is dried, crushed, and sieved to obtain biochemical fulvic acid Water retaining agent products.

Embodiment 2

[0015] Example 2: Add a certain amount of acrylic acid into the mixer, adjust the pH value of the system to 5-7 with 50% aqueous sodium hydroxide solution, cool to room temperature, add 1% acrylic acid mass, 5% N concentration, Aqueous solution of N-methylenebisacrylamide, stir evenly, then add 300% white sericite, 30% biochemical fulvic acid, 0.1% concentration of 5% potassium sulfite solution, 0.1% Potassium metabisulfite solution with a concentration of 5% is heated to 80°C, polymerized for 4 hours, and the polymerization system turns into a yellow-black colloid, and then the colloid is dried, crushed, and sieved to obtain the biochemical fulvic acid water-retaining agent product.

Embodiment 3

[0016] Example 3: Add 40% acrylamide aqueous solution and pure acrylic acid into the mixer (the mass ratio of acrylamide water to pure acrylic acid is 1:0.2), and adjust the pH value of the system to 50% sodium hydroxide aqueous solution to 5 to 7, cool to room temperature, add N, N-methylenebisacrylamide aqueous solution with a mass of 1.5% and a concentration of 1% of the mixed system, stir evenly, and then add kaolin with a total mass of the system of 10% to the mixed system in turn, 40 % biochemical fulvic acid, 10% concentration of 5% potassium sulfite solution, 10% concentration of 1% potassium metabisulfite solution, when the temperature is raised to 60°C, polymerize for 5 hours, and the polymerization system becomes yellow-black colloid, and then the colloid is dried, crushed, and sieved to obtain the biochemical fulvic acid water-retaining agent product.

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PUM

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Abstract

The invention provides a process for preparing a water retention agent of fulvic acid. The process adopts acrylic acid / acrylamide, and inorganic mineral raw materials (such as attapulgite, swell soil, white sericite, kaolin and the like) as host crystals, uses aqueous solution of N, N-methylene-bisacrylamide as a cross linker, simultaneously is added with fulvic acid to be polymerized and prepared in aqueous phase condition. The invention adopts 1-10% of aqueous solution of N, N-methylene-bisacrylamide with low degree of cross linking as cross linker to be polymerized and prepared, has low consistency, is capable of directly spraying, and is convenient in use. owing to adding inorganic mineral raw materials of attapulgite and the like, the invention not only keeps the moisture retention of the water retention agent of the prior art, but also greatly reduces production costs, and owing to adding biochemistry fulvic acid, products are provided with biological nutrition and high fertilizer effect.

Description

technical field [0001] The invention belongs to the technical field of water and soil conservation, and relates to a biochemically active water-retaining agent, in particular to a biochemical fulvic acid water-retaining agent used for spraying on plant leaves and the like. Background technique [0002] Water-retaining agent is a functional polymer material, which can not only fully absorb irrigation water or natural rainfall when applied to the soil, effectively prevent the leakage and loss of water in the soil, improve water use efficiency, but also promote the formation of soil aggregates. Formation, improve soil void structure, prevent soil erosion. Therefore, water-retaining agents are widely used in agriculture, forestry and other water-saving fields. At present, the use of water-retaining agents is basically soil mixed application, furrow application, hole application, and root dipping, and spraying cannot be carried out, which limits its large-scale promotion. [00...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00C05F11/02
Inventor 师进
Owner 师进
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