Microelement-rich liquid urea ammonium nitrate solution fertilizer and preparation method thereof

A liquid urea and trace element technology, which is applied in ammonium nitrate fertilizer, ammonium salt fertilizer, nitrate fertilizer and other directions, can solve the problems of single element and can not meet nutritional elements, etc., and achieves low raw material cost, prolongs nitrogen fertilizer effect, and improves fertilizer efficiency. Effect

Active Publication Date: 2015-01-07
中化(临沂)作物营养有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the elements in the UAN solution are single, which cannot meet the nutritional elements required for crop growth. UAN is widely used in a

Method used

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  • Microelement-rich liquid urea ammonium nitrate solution fertilizer and preparation method thereof
  • Microelement-rich liquid urea ammonium nitrate solution fertilizer and preparation method thereof
  • Microelement-rich liquid urea ammonium nitrate solution fertilizer and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Add 130kg of pure water to the enamel reaction kettle, the temperature is controlled at 80°C, add 484kg of urea to it, stir at a constant speed for 30min, and make a urea solution;

[0027] (2) Add 130kg of water in the enamel reaction kettle, the temperature is controlled at 100°C, add 595kg of ammonium nitrate therein, stir at a constant speed for 30min, and make an ammonium nitrate solution;

[0028] (3) Mix urea solution and ammonium nitrate solution evenly according to the formula ratio, and stir for 30 minutes;

[0029] (4) Add 2kg liquid ammonia, 1.5kg magnesium nitrate, 1kg ammonium bicarbonate to the above mixed solution, 0.6kg polyaspartic acid mass fraction is 50% polyaspartic acid sodium (polymerization degree 200), stir 30min, The above substances have anti-corrosion and scale-inhibiting effects;

[0030] (5) Add 1 kg of urease inhibitor to the above mixed solution: N-methyl-2-pyrrolidone, and stir for 20 minutes;

[0031] (6) 13kg of citric acid was ...

Embodiment 2

[0041] (1) Add 80kg of pure water to the enamel reaction kettle, the temperature is controlled at 100°C, add 286kg of urea to it, stir at a constant speed for 60min, and make a urea solution;

[0042] (2) Add 70kg of water to the enamel reaction kettle, the temperature is controlled at 130°C, add 387kg of ammonium nitrate to it, stir at a constant speed for 60min, and make an ammonium nitrate solution;

[0043] (3) Mix urea solution and ammonium nitrate solution evenly according to the formula ratio, and stir for 60 minutes;

[0044] (4) Add 0.4kg of liquid ammonia, 0.6kg of magnesium nitrate, 0.2kg of ammonium bicarbonate, 0.1kg of sodium polyaspartate (polymerization degree 200) to the above mixture, and stir for 30-60min. Effect;

[0045] (5) Add 0.3 kg of urease inhibition to the above mixed solution: N-methyl-2-pyrrolidone, and stir for 20 min;

[0046](6) Add 4kg of citric acid to the above mixed solution, and the reaction temperature is controlled at 150°C;

[0047] ...

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Abstract

The invention discloses a microelement-rich liquid urea ammonium nitrate solution fertilizer, which comprises 20-25 parts of urea, 20-30 parts of ammonium nitrate, 0.1-2 parts of liquid ammonia, 0.01-0.1 part of magnesium nitrate, 1-3 parts of sodium polyaspartate, 0.01-0.1 part of any one or a mixture of any more than two of ammonium carbonate, ammonium thiocyanate and ammonium bicarbonate, 0.02-0.08 part of an urease inhibitor, 1-2 parts of edta-2nacu tetrahydrate, 1-3 parts of ferric-sodium edentate, 1-3 parts of magnesium-disodium edetate, 1-3 parts of manganese-disodium edetate, 1-3 parts of zinc-disodium edentate, 1-3 parts of disodium octaborate tetrahydrate, 0.01-0.1 part of ammonium heptamolybdate, 1-3 parts of citric acid, 1-3 parts of an antifreezing agent PX-60 or polyethylene glycol PEG-200, and 16.5-41 parts of water. A product disclosed by the invention is high in safety, and pH value is 6-7; and due to the addition of an anticorrosive antiscale agent, the corrosion of products on production, storage, transportation and application facilities is effectively prevented.

Description

technical field [0001] The invention belongs to the field of water-soluble fertilizer production, and relates to a trace element type liquid nitrogen fertilizer and a preparation method thereof, in particular to a liquid urea ammonium nitrate solution fertilizer rich in trace elements and a preparation method thereof. Background technique [0002] The energy consumption of traditional nitrogen fertilizer products in my country is very high, mainly using solid nitrogen fertilizer, but the absorption efficiency of solid nitrogen fertilizer is low. According to statistics, the absorption efficiency of urea is only less than 30%, resulting in a great waste of products. Urea ammonium nitrate solution (referred to as UAN solution), which is an aqueous solution made by mixing unconcentrated urea and ammonium nitrate, UAN solution can be applied to the soil more uniformly, and contains nitrate nitrogen, ammonium nitrogen and amide groups Nitrogen, the first two can be absorbed by cr...

Claims

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Application Information

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IPC IPC(8): C05G3/08C05G3/90
CPCC05C1/00C05G3/00C05G3/90C05C3/00C05C5/00C05C9/00C05D5/00C05D9/00
Inventor 王岩梁志杰张弘孙忠鹏宋纪春
Owner 中化(临沂)作物营养有限公司
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