Industrial liquid ammonium nitrate, preparation method thereof and application thereof

A technology of liquid ammonium nitrate and ammonium nitrate, which is applied in the field of nitrate, can solve the problems of high risk of crushing, unsafety, and poor sealing of ammonium nitrate, so as to save energy and labor costs, reduce risk, and have good sealing Effect

Inactive Publication Date: 2010-01-27
SHANDONG LIANHE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) Solids are easy to harden with ammonium nitrate, resulting in a high risk of crushing during use. At the same time, ammonium nitrate is poorly sealed and prone to collisions during road transportation, which poses a safety hazard and is extremely unsafe
[0005] 2) The industry requires crystallization and drying processes to obtain solids. In the context of today's increasingly high energy costs, it will cause waste of energy consumption and increase costs

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] An industrial liquid ammonium nitrate, the liquid ammonium nitrate is ammonium nitrate solution, the content of ammonium nitrate is 70%, used for potassium nitrate production.

[0021] Method for making: method for making of the present invention is basically the same as producing solid ammonium nitrate, but the parameter control of following steps is:

[0022] 1) Neutralization: the neutralization temperature is 90-120°C, and the outlet acidity after neutralization is 3-8g / L;

[0023] 2) Reneutralization: the acidity after reneutralization is 0.50-1.00g / L;

[0024] 3) Evaporation: the evaporation is vacuum distillation, the vacuum degree is 0.04~0.08MPa, the solution temperature at the evaporation outlet is 95~135°C; after evaporation, the alkalinity is adjusted to 0.068~0.17g / L, at this time, the content in the product is 70~ 96%.

[0025] 4) According to the actual concentration of the prepared product, adjust to the concentration required by the customer, ie 70%. ...

Embodiment 2

[0027] An industrial liquid ammonium nitrate, the liquid ammonium nitrate is ammonium nitrate solution, the content of ammonium nitrate is 86%, used for the production of emulsion explosives.

[0028] The preparation method is basically the same as in Example 1.

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PUM

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Abstract

The invention relates to industrial liquid ammonium nitrate which belongs to the technical field of nitrates and is characterized in that: the liquid ammonium nitrate is solution of ammonium nitrate, the ammonium nitrate content of the solution is 70 to 96 percent, and the solution also contains more than 10 percent of water. Compared with industrial solid ammonium nitrate in the prior art, the method has the advantages that: the technology is simple; work procedures of crystallization (granulation), packing, manual entrucking and the like are saved; the ammonium nitrate content is not required to be higher than 99 percent in evaporation, so energy consumption and manual expense are saved; tank vehicles used for road transportation have good sealing performance; and because the product comprises more than 10 percent of water, dangers are greatly reduced, and products of various concentrations can be provided according to the requirements of the customers.

Description

technical field [0001] The invention belongs to the technical field of nitrates, and in particular relates to an industrial liquid ammonium nitrate and its preparation method and application. Background technique [0002] The prior art industrial ammonium nitrate is a solid product. The reason is that the solid product has high purity and can be formulated into a solution of required concentration according to the actual situation. Solid ammonium nitrate is generally made from dilute nitric acid and ammonia gas through neutralization, evaporation, crystallization, packaging and other processes, and is transported to explosives factories or compound fertilizer factories for use. [0003] The applicant believes that solid ammonium nitrate has the following deficiencies: [0004] 1) Solids are easy to harden with ammonium nitrate, resulting in a high risk of crushing during use. At the same time, ammonium nitrate is poorly sealed and prone to collisions during road transporta...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01C1/18C01D9/10C06B31/28
Inventor 王崇德段会伟赵新珍
Owner SHANDONG LIANHE CHEM
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