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Preparation method of an ammonium nitrate aqueous solution

A technology of aqueous solution and ammonium nitrate, which is applied in the direction of ammonium nitrate, chemical instruments and methods, ammonia compounds, etc., can solve the problems of ammonium nitrate aqueous solution containing impurities, dangerous process, difficult to control, etc., so as to ensure the feasibility and safety , The state is safe and stable, and the effect is not easy to control

Pending Publication Date: 2020-09-01
四川西陇科学有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the reaction process, a large amount of heat is released, and even explosions are generated. The process is very dangerous and difficult to control.
[0003] At present, the common method of preparing ammonium nitrate aqueous solution on the market is to dilute solid ammonium nitrate with water to obtain ammonium nitrate aqueous solution of different concentrations, but solid ammonium nitrate will be added with anti-knock agent and other additives during the preparation process, so dilute solid ammonium nitrate with water The obtained ammonium nitrate aqueous solution contains impurities, and there will be a problem of low purity

Method used

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  • Preparation method of an ammonium nitrate aqueous solution

Examples

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Effect test

Embodiment 1

[0032] Specifically, a kind of ammonium nitrate aqueous solution preparation method comprises the following steps:

[0033] Step S01: Weighing 38.25 parts of ammonia water with a mass of 26.0% and a temperature of 20°C and adding it to 76.5 parts of pure water with a mass of 20°C to prepare the first diluted ammonia water;

[0034] Step S02: Weighing 54.51 parts of nitric acid with a mass of 65% and a temperature of 25°C and adding it to 109.02 parts of pure water with a mass of 20°C to prepare the first diluted nitric acid;

[0035] Step S03: Add the first diluted ammonia water obtained in step S01 to the first diluted nitric acid obtained in step S02 to obtain a first aqueous ammonium nitrate solution.

[0036] In this embodiment, the dilution temperature in the process of diluting ammonia water in step S01 remains unchanged at 20°C, and the dilution temperature in step S02 in the process of diluting nitric acid increases from 20°C to 30°C.

[0037] In this embodiment, the ...

Embodiment 2

[0041] Specifically, a kind of ammonium nitrate aqueous solution preparation method comprises the following steps:

[0042] Step S01: Weigh 62.21 parts of ammonia water with a mass of 26% and a temperature of 20°C and add it to 119 parts of a first ammonium nitrate aqueous solution with a mass of 5.25% and a temperature of 40°C to obtain a second diluted ammonia water ;

[0043] Step S02: Weigh 84.81 parts of nitric acid with a mass of 65% and a temperature of 25°C and add it to the first ammonium nitrate aqueous solution with a mass of 169.61 parts, a concentration of 5.25%, and a temperature of 40°C to obtain the second diluted nitric acid ;

[0044] Step S03: Add the second diluted ammonia water prepared in step S01 to the second diluted nitric acid prepared in step S02 to prepare a second ammonium nitrate aqueous solution.

[0045] In this embodiment, the dilution temperature in the process of diluting ammonia water in step S01 is reduced from 40°C to 32°C, and the dilut...

Embodiment 3

[0050] Specifically, a kind of ammonium nitrate aqueous solution preparation method comprises the following steps:

[0051] Step S01: Weigh 85 parts of ammonia water with a mass of 26% and a temperature of 20°C and add it to 170 parts of a second ammonium nitrate aqueous solution with a mass of 19.63% and a temperature of 30°C to obtain a third diluted ammonia water ;

[0052] Step S02: Weigh 121 parts of nitric acid with a mass of 65% and a temperature of 25°C and add it to 242.3 parts of a second ammonium nitrate aqueous solution with a mass of 19.63% and a temperature of 30°C to obtain a third diluted nitric acid ;

[0053] Step S03: Add the third diluted ammonia water prepared in step S01 to the third diluted nitric acid prepared in step S02 to prepare a third aqueous ammonium nitrate solution.

[0054]In this embodiment, the dilution temperature in the process of diluting ammonia water in step S01 remains unchanged at 30°C, and the dilution temperature in step S02 in th...

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Abstract

The invention discloses a preparation method of an ammonium nitrate aqueous solution. The preparation method comprises the following steps of: diluting ammonia water to obtain diluted ammonia water; diluting nitric acid to obtain diluted nitric acid; mixing the diluted ammonia water and the diluted nitric acid to prepare an ammonium nitrate aqueous solution. By means of the technical scheme, the preparation method is simple, environmentally friendly, safe, stable, low in preparation difficulty coefficient and high in realizability.

Description

technical field [0001] The invention relates to the field of ammonium nitrate preparation, in particular to a method for preparing ammonium nitrate aqueous solution. Background technique [0002] Ammonium nitrate is a precursor to explosives, and its control is relatively strict. However, in the production and use of reagents, it is also one of the indispensable varieties, such as nitrite for pollution-free reduction in nitrate production and the preparation of reagents (such as in barge manufacturing, ASTM G66-99 ( 2013) Preparation of 5XXX series alloy aluminum denudation test solution); in agricultural and forestry production, ammonium nitrate is also a high-quality nitrogen source nutrient element, such as the preparation of nutrient solution in plant seedlings. Solid ammonium nitrate is a hazardous chemical, and its production and storage have strict requirements. If nitric acid and ammonia are mixed directly, the vapors of nitric acid and ammonia will meet in the air...

Claims

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Application Information

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IPC IPC(8): C01C1/18
CPCC01C1/185
Inventor 肖启发庄景发邓林
Owner 四川西陇科学有限公司
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