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Liquid potassium dihydrogen phosphate and its production process

A technology of potassium dihydrogen phosphate and fertilizer, which is applied to fertilizer mixtures, phosphorus compounds, fertilization devices, etc., can solve the problems of insoluble fertilizer active ingredients, easy clogging of sprayer nozzles, complicated powder product process, etc., and achieves low product cost and solution. Stabilizing and preventing crystal precipitation

Inactive Publication Date: 2002-02-27
锦绣华夏(北京)生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Potassium dihydrogen phosphate has been welcomed by farmers because it can provide two types of growth elements, potassium and phosphorus, for crop growth. However, most of the existing potassium dihydrogen phosphate fertilizers are powder products, which have the following disadvantages: 1) powder Products are generally ready-to-use and are affected by solvent temperature and dissolution time. If the solvent temperature is too low and the dissolution time is short, the active ingredients in the fertilizer will be difficult to dissolve, thereby affecting the utilization rate of the fertilizer; 2) Non-dissolved fertilizers in the solution The composition is easy to block the nozzle of the sprayer; 3) The powder product has complicated process, large equipment investment and high production cost, resulting in high product cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] 85% industrial phosphoric acid (containing P 2 o 5 10Kg) and 90% KOH 20Kg are neutralized while flowing in a horizontal stainless steel reactor, and its temperature is controlled between 50-60°C with circulating water outside, and the pH is adjusted to 5.0, and then poured into the reaction tank , lower the temperature to 38°C; add complexing agent disodium ethylenediaminetetraacetic acid (EDTA) 0.3Kg, trace elements: ferrous sulfate 0.3Kg, copper sulfate 0.08Kg, zinc sulfate 0.1Kg, manganese sulfate 2.0Kg, boric acid 2.0Kg , ammonium molybdate 0.2Kg, fully stirred, then add o-nitrophenolate sodium and 5-nitrophenolate sodium (ratio is 1:1) total 0.1Kg, carboxymethylcellulose (CMC) 1.2Kg and agricultural rare earth nitrate 0.2Kg, fully stirred evenly to obtain a light yellow liquid, which is the finished product after filling and packaging.

Embodiment 2

[0032] 85% industrial phosphoric acid (containing P 2 o 5 6Kg) and 90% KOH 16Kg are neutralized while flowing in a horizontal stainless steel reactor, and its temperature is controlled between 50-60°C with circulating water outside, and the pH is adjusted to 5.5, and then poured into the reaction tank , lower the temperature to 40°C; add complexing agent disodium ethylenediaminetetraacetic acid (EDTA) 0.5Kg, trace elements: ferrous sulfate 0.5Kg, copper sulfate 0.1Kg, zinc sulfate 0.15Kg, manganese sulfate 1.6Kg, boric acid 0.15Kg , ammonium molybdate 0.2Kg, fully stirred, and then add sodium o-nitrophenolate and sodium 5-nitrophenolate (ratio: 1:1) total 0.05Kg, carboxymethylcellulose (CMC) 1.0Kg and agricultural rare earth nitrate 0.15Kg, fully stirred evenly to obtain a light yellow liquid, which is the finished product after filling and packaging.

Embodiment 3

[0034] 85% industrial phosphoric acid (containing P 2 o 5 8.0Kg) and 90% KOH 22.0Kg are neutralized while flowing in a horizontal stainless steel reactor, and its temperature is controlled between 50-60°C with circulating water outside, and the pH is adjusted to 5.5, and then injected into the reaction In the tank, cool down to 40°C; at the same time, complex the trace elements: 0.2Kg of ferrous sulfate, 0.1Kg of copper sulfate, 0.1Kg of zinc sulfate, and 1.8Kg of manganese sulfate are added to the complexing agent disodium edetate (EDTA), the EDTA used is 0.4Kg, stir evenly, then add the complexed trace elements into the reaction tank, then add 2.0Kg of boric acid, 0.18Kg of ammonium molybdate, stir well, and then add sodium o-nitrophenolate And 5-nitrophenol sodium (ratio is 1: 1) altogether 0.08Kg, carboxymethyl cellulose (CMC) 0.8Kg and agricultural rare earth nitrate 0.12Kg, fully stir, obtain yellowish liquid, can be ready to use after filling, packaging for the finis...

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PUM

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Abstract

The liquid potassium dihydrogen phosphate fertilizer is the fertilizer prepared by using the following raw materials: phosphorus pentoxide, potassium hydroxide, nitrogen, agricultural rare earth nitrate, disodium ethylene diamine tetracetate, adhesion agent, penetrating agent, ferrous sulfate, cupric sulfate, zinc sulfate, manganese sulfate, boric acid and amine molybdate. Said fertilizer is a light yield liquid, its concentration is uniform and its solution is stable, its phosphorus content and potassium content can be tp about 16-32. It can meet the requirements for nutrients of every growth period, and can promote growth and development of plants, and can improve soil structure and raise utilization rate of fertilizer, and its production process is simple and cost is low.

Description

technical field [0001] The invention relates to a liquid potassium dihydrogen phosphate fertilizer and a production process thereof. Background technique [0002] Potassium dihydrogen phosphate has been welcomed by farmers because it can provide two types of growth elements, potassium and phosphorus, for crop growth. However, most of the existing potassium dihydrogen phosphate fertilizers are powder products, which have the following disadvantages: 1) powder Products are generally ready-to-use and are affected by solvent temperature and dissolution time. If the solvent temperature is too low and the dissolution time is short, the active ingredients in the fertilizer will be difficult to dissolve, thereby affecting the utilization rate of the fertilizer; 2) Non-dissolved fertilizers in the solution Components are easy to block the nozzle of the sprayer; 3) the powder product process is complicated, the equipment investment is large, and the production cost is high, resulting ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B25/30C05B11/10C05G3/00
Inventor 慕智君
Owner 锦绣华夏(北京)生物科技有限公司
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