Granulation anticaking multifunctional assistant for diammonium phosphate

A multifunctional additive and diammonium phosphate technology, which is applied to ammonium orthophosphate fertilizers, alkaline orthophosphate fertilizers, phosphate fertilizers, etc., can solve the problems of poor roundness of the appearance of diammonium phosphate fertilizers, changes in the viscosity of diammonium phosphate slurry, Affect the granulation of diammonium phosphate and other problems, and achieve the effect of reducing the tendency of agglomeration, not easy to agglomerate, and not easy to pulverize

Active Publication Date: 2013-11-20
HUBEI FORBON NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the changes in the concentration of metal oxides (iron oxide, aluminum oxide, etc.) in the ore, resulting in changes in the viscosity of diammonium phosphate slurry, affecting the granulation of diammonium phosphate, and causing the appearance of diammonium phosphate fertilizer produced by ammonium phosphate manufacturers. Poor roundness, poor particle strength, and prone to agglomeration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] The components of the granulation anti-caking multifunctional auxiliary agent are calculated by mass percentage: 20% of the dispersant sodium polyacrylate with a molecular weight of 4000, 40% of the dispersant NNO, and 40% of the anti-caking agent carbon 12 alkyl primary amine phosphate.

[0015] Preparation ratio: Mix the above raw materials to make an aqueous solution with a mass concentration of 40%.

[0016] Adding point: Use a metering pump to add to the diammonium phosphate slurry. Dosage: Use 2 kg of granulation and anti-caking multifunctional additives per ton of fertilizer.

Embodiment 2

[0018] The components of the granulation anti-caking multifunctional auxiliary agent are calculated by mass percentage: 30% of the dispersant sodium polyacrylate molecular weight 5000, 20% of the dispersant NNO, 30% of the anti-caking agent carbon 12 alkyl primary amine phosphate, 20% % of carbon 12 alkyl tertiary amine phosphate.

[0019] Preparation ratio: Mix the above-mentioned raw materials to prepare an aqueous solution with a mass concentration of 40%.

[0020] Adding point: Use a metering pump to add to the diammonium phosphate slurry. Dosage: Use 2.5 kg of granulation and anti-caking multifunctional additives per ton of fertilizer.

Embodiment 3

[0022] The components of the granulation and anti-caking multifunctional auxiliary agent are calculated by mass percentage: 10% dispersant sodium polyacrylate molecular weight 1000, 30% dispersant NNO, 20% anti-caking agent carbon 8 alkyl primary amine phosphate, 20% Carbon 8 alkyl secondary amine phosphate, 20% carbon 8 alkyl tertiary amine phosphate.

[0023] Preparation ratio: Mix the above-mentioned raw materials to prepare an aqueous solution with a mass concentration of 30%.

[0024] Adding point: Use a metering pump to add to phosphoric acid. Dosage: Use 3 kg of granulation and anti-caking multifunctional additives per ton of fertilizer.

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Abstract

The invention relates to a granulation anticaking multifunctional assistant for diammonium phosphate. The invention is characterized in that the granulation anticaking multifunctional assistant is a mixture of dispersants and an anticaking agent. The granulation anticaking multifunctional assistant is prepared from the following components in percentage by mass: 10-30% of dispersant sodium polyacrylate, 20-40% of dispersant NNO and 30-60% of anticaking agent fatty amine phosphate formed by reacting fatty amine and phosphoric acid, wherein the sum of the percents of all the components is 100%. The addition mode of the granulation anticaking multifunctional assistant is as follows: preparing the granulation anticaking multifunctional assistant into a 30-40 wt% solution, and pumping the solution into diammonium phosphate slurry or into phosphoric acid. The granulation anticaking multifunctional assistant has the advantage of low consumption (1-3kg / ton), and can be used for producing the diammonium phosphate which has the advantages of smooth appearance, high granular strength and low caking tendency.

Description

technical field [0001] The invention relates to an internally added granulation and anti-caking multifunctional additive for diammonium phosphate. Background technique [0002] Diammonium phosphate is suitable for various crops and soils, especially for ammonium-loving crops that require phosphorus. It can be used as base fertilizer or top dressing, and it should be applied deeply. It is easily soluble in water and has less solid content after dissolution. It is suitable for the needs of various crops for nitrogen and phosphorus elements. It is especially suitable for base fertilizer, seed fertilizer, and top dressing in areas with little rain. It is a high-concentration quick-acting fertilizer. It is used as There is a large market demand for binary fertilizers or as raw materials for the preparation of mixed fertilizers (BB fertilizers). [0003] The quality of diammonium phosphate granulation is mainly affected by its raw material ore. If impurity ions such as iron ions ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05G3/00C05B7/00
Inventor 操素芬王仁宗
Owner HUBEI FORBON NEW MATERIAL CO LTD
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