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Synthetic method of acidic water-soluble pasty nitrogen phosphorus fertilizer

A synthesis method and technology of nitrogen and phosphorus fertilizers, applied in fertilizer mixtures, fertilization devices, applications, etc., to achieve the effect of preserving flowers and fruits, improving work efficiency, and increasing the root system

Inactive Publication Date: 2016-12-07
云南遍地绿生物科技有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] So far, there is no acidic paste fertilizer mainly composed of ammonium nitrogen on the market

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Preheat a 1000mL three-necked flask to 95°C in an oil bath, then add 78% to 83% phosphorus industrial phosphoric acid and 99% industrial monoammonium phosphate into the three-necked flask, after the temperature rises to 90°C, add 3% Carboxymethyl cellulose, 46% urea joins in the there-necked flask, wherein the mol ratio of industrial phosphoric acid and industrial monoammonium phosphate is 1: 1, the mol ratio of carboxymethyl cellulose and urea is 1: 1 stirring, the catalyst The amount is 0.5% of the total mass, stirred evenly, the stirring speed is 150r / min, the reaction temperature is 100°C to 120°C, the reflux cooling device is opened, and after 90 minutes of reaction, the complexed monoammonium phosphate and industrial phosphoric acid are prepared. Acidic water-soluble paste nitrogen and phosphorus fertilizer, the product is measured: N: 6.41%, P2O5: 66%.

Embodiment 2

[0021] Preheat a 1000mL three-necked flask to 95°C in an oil bath, then add 78% to 83% phosphorus industrial phosphoric acid and 99% industrial monoammonium phosphate into the three-necked flask, after the temperature rises to 90°C, add 1% Carboxymethyl cellulose, 46% urea joins in the there-necked flask, wherein the mol ratio of industrial phosphoric acid and industrial monoammonium phosphate is 1: 1, the mol ratio of carboxymethyl cellulose and urea is 1: 1 stirring, the catalyst The amount is 0.5% of the total mass, stirred evenly, the stirring speed is 130r / min, the reaction temperature is 100°C to 120°C, the reflux cooling device is opened, and after 60 minutes of reaction, the compound of monoammonium phosphate and industrial phosphoric acid is prepared. Acidic water-soluble paste nitrogen and phosphorus fertilizer, the product is measured: N: 6.01%, P2O5: 65%.

Embodiment 3

[0023] Preheat a 1000mL three-necked flask to 95°C in an oil bath, then add 78% to 83% phosphorus industrial phosphoric acid and 99% industrial monoammonium phosphate into the three-necked flask, after the temperature rises to 80°C, add 3% Carboxymethyl cellulose, 46% urea joins in the there-necked flask, wherein the mol ratio of industrial phosphoric acid and industrial monoammonium phosphate is 1: 1, the mol ratio of carboxymethyl cellulose and urea is 1: 1 stirring, the catalyst The amount is 0.5% of the total mass, stirred evenly, the stirring speed is 150r / min, the reaction temperature is 100°C to 120°C, the reflux cooling device is opened, and after 60 minutes of reaction, the complexed monoammonium phosphate and industrial phosphoric acid are prepared. Acidic water-soluble paste nitrogen and phosphorus fertilizer, the product is measured: N: 5.45%, P2O5: 63%.

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PUM

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Abstract

The invention relates to a synthetic method of an acidic water-soluble pasty nitrogen phosphorus fertilizer. The synthetic method comprises the following steps of preheating a 1000ml three-neck flask in an oil bath to 95 DEG C, then adding industrial phosphoric acid in which the content of phosphorus is 78%-83% and industrial monoammonium phosphate in which the content of phosphorus is 99% to the three-neck flask, and after the temperature is raised to 90 DEG C, adding 1-3% of carboxymethyl cellulose and 46% of urea to the three-neck flask, wherein the molar ratio of the industrial phosphoric acid to the industrial monoammonium phosphate is 1 to 1, and the molar ratio of the carboxymethyl cellulose to the urea is 1 to 1; performing stirring, wherein the quantity of catalysts accounts for 0.5% of total mass; and performing uniform stirring, wherein the reaction temperature is 100-120 DEG C, opening a reflux cooling device, and performing a reaction for 60-90 minutes, so as to prepare the acidic water-soluble pasty nitrogen phosphorus fertilizer in which ammonium dihydrogen phosphate and industrial phosphoric acid are complexed. The acidic water-soluble pasty nitrogen phosphorus fertilizer is high in phosphorus nutrient, high in fertilizer effect, and good in aqueous solubility, can realize water-saving irrigation, can also be used as a rooting promoting fertilizer, and is notable in effect of effectively improving soil acid-base balance.

Description

technical field [0001] The invention relates to a synthesis method of nitrogen and phosphorus fertilizers, in particular to a synthesis method of acidic water-soluble paste nitrogen and phosphorus fertilizers. Background technique [0002] The current water-soluble fertilizers on the market can be directly absorbed by crops, have obvious effects on increasing production, are convenient and quick to use, and save labor costs while saving water. With the development of China's agricultural technology, modern agricultural irrigation systems are favored by the majority of agricultural planting companies and growers, and soilless cultivation has also become popular. In modern economic crops, the use of a large number of drip irrigation facilities has significantly reduced the cost of labor production, improved the absorption of nutrients by crops, and the method of fertilization with a small amount of frequent meals minimizes the loss of fertilizers. At the same time, water-solu...

Claims

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Application Information

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IPC IPC(8): C05G3/04C05G3/80
Inventor 朱建勋
Owner 云南遍地绿生物科技有限公司