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Preparation method of instant macroelement water-soluble fertilizer

A technology of water-soluble fertilizers and macronutrients, applied in the direction of alkaline orthophosphate fertilizers, organic fertilizers, inorganic fertilizers, etc., can solve the problems of caking, stability, absorption and utilization of water-soluble fertilizers, and achieve good water dispersion The effects of stabilizing performance, improving absorption and utilization rate, and improving disintegration performance

Pending Publication Date: 2021-01-15
贵州盈丰原生态肥业科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] This patent provided that the addition of surfactant and disintegrating agent into water agent solved the solubility problem of solid water-soluble fertilizer, but it did not solve the problems of caking, stability and absorption utilization rate of water-soluble fertilizer.

Method used

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  • Preparation method of instant macroelement water-soluble fertilizer

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Embodiment 1

[0029] A preparation method of an instant macronutrient water-soluble fertilizer, comprising the following processes:

[0030] (1) Nitrogen fertilizer treatment: mix nitrogen fertilizer with modified lignin, add auxiliary agent 1, heat and modify, and obtain compound nitrogen fertilizer;

[0031] The nitrogen fertilizer is urea; the modified lignin is sulfonated lignin; the auxiliary agent 1 is cystine; the mass ratio of the nitrogen fertilizer, modified lignin, and auxiliary agent 1 is 1:2:0.1;

[0032] Mix the modified lignin with twice the mass of water to make a modified lignin aqueous solution; mix the modified lignin aqueous solution with nitrogen fertilizer and auxiliary agent 1, reflux and stir at 50-55°C for 4 hours, and cool to obtain a compound nitrogen fertilizer ;

[0033] (2) Phosphate fertilizer treatment: mix phosphate fertilizer with nano-microcrystalline cellulose, add auxiliary agent 2, heat treatment, and make compound phosphate fertilizer;

[0034] The p...

Embodiment 2

[0045] A preparation method of an instant macronutrient water-soluble fertilizer, comprising the following processes:

[0046] (1) Nitrogen fertilizer treatment: mix nitrogen fertilizer with modified lignin, add auxiliary agent 1, heat and modify, and obtain compound nitrogen fertilizer;

[0047] The nitrogen fertilizer is one or both of urea and ammonium nitrate; the modified lignin is sulfonated lignin; the auxiliary agent 1 is cystine; the mass ratio of the nitrogen fertilizer, modified lignin, and auxiliary agent 1 1:3:0.1;

[0048] Mix the modified lignin with twice the mass of water to make a modified lignin aqueous solution; mix the modified lignin aqueous solution with nitrogen fertilizer and auxiliary agent 1, reflux and stir at 50-55°C for 4 hours, and cool to obtain a compound nitrogen fertilizer ;

[0049] (2) Phosphate fertilizer treatment: mix phosphate fertilizer with nano-microcrystalline cellulose, add auxiliary agent 2, heat treatment, and make compound pho...

Embodiment 3

[0061] A preparation method of an instant macronutrient water-soluble fertilizer, comprising the following processes:

[0062] (1) Nitrogen fertilizer treatment: mix nitrogen fertilizer with modified lignin, add auxiliary agent 1, heat and modify, and obtain compound nitrogen fertilizer;

[0063] The nitrogen fertilizer is one or both of urea and ammonium nitrate; the modified lignin is sulfonated lignin; the auxiliary agent 1 is cystine; the mass ratio of the nitrogen fertilizer, modified lignin, and auxiliary agent 1 1:3:0.1;

[0064] Mix the modified lignin with twice the mass of water to make a modified lignin aqueous solution; mix the modified lignin aqueous solution with nitrogen fertilizer and auxiliary agent 1, reflux and stir at 50-55°C for 4 hours, and cool to obtain a compound nitrogen fertilizer ;

[0065] (2) Phosphate fertilizer treatment: mix phosphate fertilizer with nano-microcrystalline cellulose, add auxiliary agent 2, heat treatment, and make compound pho...

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Abstract

The invention relates to a preparation method of an instant macroelement water-soluble fertilizer, which comprises the following steps of: (1) nitrogen fertilizer treatment: mixing a nitrogen fertilizer with modified lignin, adding an auxiliary agent 1, and carrying out heating modification to obtain a composite nitrogen fertilizer; (2) phosphate fertilizer treatment: mixing a phosphate fertilizerwith nano microcrystalline cellulose, adding an auxiliary agent 2, and carrying out heating treatment to prepare a composite phosphate fertilizer; (3) potash fertilizer treatment: mixing a potash fertilizer with sodium carboxymethyl starch, adding an auxiliary agent 3, and performing heating treatment to obtain a composite potash fertilizer; (4) trace element treatment: mixing a trace element fertilizer with phytic acid for reaction to obtain a composite trace element solution; and (5) preparation of the fertilizer: sequentially adding the composite nitrogen fertilizer, the composite phosphorus fertilizer and the composite potassium fertilizer into a co-solution, uniformly stirring, and sending the obtained mixture into a granulator for granulation to obtain a large amount of water-soluble fertilizer. The solid water-soluble fertilizer provided by the invention has good water dispersion stability, disintegration performance and biological activity.

Description

technical field [0001] The invention belongs to the technical field of fertilizers, in particular to a preparation method of an instant macronutrient water-soluble fertilizer. Background technique [0002] Water-soluble fertilizer is a multi-component compound fertilizer that can be completely dissolved in water. It can be quickly dissolved in water and is more easily absorbed by crops, and its absorption and utilization rate is relatively high. More importantly, it can be applied to drip irrigation And other facilities, realize the integration of water and fertilizer, and achieve the efficiency of saving water, fertilizer and labor. Water-soluble fertilizers can contain all the nutrients needed for crop growth, such as N, P, K, Ca, Mg, S and trace elements, etc., so that the fertilizer utilization rate is almost 2 to 3 times that of conventional compound chemical fertilizers. Secondly, Water-soluble fertilizer is a quick-acting fertilizer, which allows growers to quickly s...

Claims

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Application Information

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IPC IPC(8): C05G3/00C05G3/40C05G3/80C05G5/12
CPCC05B1/04C05G3/00C05G3/44C05G3/80C05G5/12C05B7/00C05C1/00C05C5/00C05C9/00C05C11/00C05D5/00C05D9/02C05F11/00C05F11/02
Inventor 曾明贵
Owner 贵州盈丰原生态肥业科技有限公司
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