Composite fertilizer additive and preparation method thereof

A technology of additives and chemical fertilizers, applied in fertilization devices, fertilizer mixtures, applications, etc., can solve the problems of unsatisfactory clay effects, high production costs of compound fertilizers, and affecting fertilizer absorption, etc., to improve fertilizer utilization and reduce water content , the effect of reducing production costs

Inactive Publication Date: 2015-07-15
HUBEI GUANGDA CHEM IND CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the effect of clay is not satisfactory, resulting in high production cost of compound fertilizer, and clay is insoluble in water, which affects the absorption of fertilizer by soil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Embodiment 1: A kind of compound chemical fertilizer additive, is formed by mixing the following raw materials according to parts by weight: 50 parts of calcium chloride, 8 parts of barium sulfate, 1 part of polyacrylamide, 10 parts of sodium carboxymethyl cellulose, calcium hydrogen phosphate 2 parts, 4 parts of low molecular weight polyacrylic acid, 6 parts of calcium iron lignosulfonate, 4 parts of sodium thiosulfate, 2 parts of zinc naphthenate, 3 parts of gelatin, 10 parts of polyvinyl alcohol.

[0011] A method for preparing the above-mentioned compound fertilizer additive, the steps are as follows:

[0012] (1) Calcium chloride, barium sulfate, polyacrylamide, sodium carboxymethyl cellulose, calcium hydrogen phosphate, low molecular weight polyacrylic acid calcium lignosulfonate, sodium thiosulfate, zinc naphthenate , gelatin and polyvinyl alcohol are stirred evenly to make a uniform powder;

[0013] (2) The above-mentioned uniform powder is put into a Raymond m...

Embodiment 2

[0015] Embodiment 2: A kind of compound fertilizer additive, is formed by mixing the following raw materials according to weight parts: 55 parts of calcium chloride, 10 parts of barium sulfate, 2 parts of polyacrylamide, 8 parts of sodium carboxymethyl cellulose, calcium hydrogen phosphate 2 parts, 2 parts of low molecular weight polyacrylic acid, 4 parts of calcium iron lignosulfonate, 2 parts of sodium thiosulfate, 2 parts of zinc naphthenate, 3 parts of gelatin, 10 parts of polyvinyl alcohol.

[0016] A method for preparing the above-mentioned compound fertilizer additive, the steps are as follows:

[0017] (1) Calcium chloride, barium sulfate, polyacrylamide, sodium carboxymethyl cellulose, calcium hydrogen phosphate, low molecular weight polyacrylic acid calcium lignosulfonate, sodium thiosulfate, zinc naphthenate , gelatin and polyvinyl alcohol are stirred evenly to make a uniform powder;

[0018] (2) The above-mentioned uniform powder is put into a Raymond mill and gro...

Embodiment 3

[0020] Embodiment 3: A kind of compound chemical fertilizer additive, is formed by mixing the following raw materials according to weight parts: 52 parts of calcium chloride, 12 parts of barium sulfate, 1 part of polyacrylamide, 10 parts of sodium carboxymethyl cellulose, calcium hydrogen phosphate 5 parts, 2 parts of low molecular weight polyacrylic acid, 4 parts of calcium iron lignosulfonate, 1 part of sodium thiosulfate, 2 parts of zinc naphthenate, 3 parts of gelatin, 8 parts of polyvinyl alcohol.

[0021] A method for preparing the above-mentioned compound fertilizer additive, the steps are as follows:

[0022] (1) Calcium chloride, barium sulfate, polyacrylamide, sodium carboxymethyl cellulose, calcium hydrogen phosphate, low molecular weight polyacrylic acid calcium lignosulfonate, sodium thiosulfate, zinc naphthenate , gelatin and polyvinyl alcohol are stirred evenly to make a uniform powder;

[0023] (2) The above-mentioned uniform powder is put into a Raymond mill ...

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PUM

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Abstract

The invention discloses a composite fertilizer additive and a preparation method thereof. The composite fertilizer additive is prepared by mixing the following raw materials, by weight, 50-55 parts of calcium chloride, 8-15 parts of barium sulfate, 1-3 parts of polyacrylamide, 10-12 parts of carboxymethylcellulose sodium, 2-5 parts of calcium hydrogen phosphate, 2-4 parts of low molecular weight polyacrylic acid, 4-6 parts of ferric chomium calcium lignin sulfonate, 1-2 parts of sodium hyposulfite, 2-4 parts of zinc naphthenate, 3-5 parts of gelatin and 8-10 parts of polyvinyl alcohol. The additive is added to fertilizers in order to improve the pelletizing rate of the fertilizers and reduce the production cost.

Description

technical field [0001] The invention relates to the field of chemical fertilizers, in particular to a compound chemical fertilizer additive and a preparation method thereof. Background technique [0002] In modern agriculture, the macronutrients nitrogen, phosphorus, and potassium in the soil usually cannot meet the needs of crop growth, and fertilizers containing nitrogen, phosphorus, and potassium need to be used to make up for it. The core raw materials for compound fertilizer production are inorganic salts such as urea, ammonium chloride, ammonium sulfate, monoammonium phosphate, potassium chloride, and potassium sulfate. However, the inorganic salts used in the production of compound fertilizers have low viscosity and are difficult to granulate into compound fertilizers. At present, domestic compound fertilizer manufacturers mostly use clay such as bentonite and calcium soil to increase the viscosity of fertilizers and increase the pelleting rate. However, the effect o...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/00
Inventor 黄玲玲刘少威
Owner HUBEI GUANGDA CHEM IND CO LTD
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