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Detonation inhibitor for ammonium nitrate

A technology of anti-knock agent and ammonium nitrate, which is applied in the direction of ammonium nitrate fertilizer, application, nitrogen fertilizer, etc., can solve the problems of large amount of anti-knock agent, easy agglomeration of products, and reduced fertilizer efficiency, so as to achieve low labor intensity for workers, low production cost, Ease of use

Active Publication Date: 2012-07-04
SHANXI TOND CHEMICAL CO LTD
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  • Abstract
  • Description
  • Claims
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AI Technical Summary

Problems solved by technology

There are defects such as large amount of anti-explosive agent, high cost, poor anti-explosion effect, mechanical blending method of modification technology, easy agglomeration of products, reduced fertilizer efficiency, narrow application range, etc.

Method used

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  • Detonation inhibitor for ammonium nitrate

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Experimental program
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Effect test

Embodiment

[0025] 1 implement according to the best formula (mass %) as follows:

[0026] 25 Anti-hardening agent: stearylamine formate;

[0027] 15 Flame retardant: melamine;

[0028] 3 Quenching agent: paraffin oil;

[0029] 57 Explosion-proof agent: polyvinyl formal.

[0030] Manufacture of the present invention: Add four kinds of raw materials such as octadecylamine formate in proportion to a jacketed stainless steel or enamel reaction kettle with a stirring device and a temperature measuring system at the same time, and heat it to 90-90°C with steam. 100°C, melt the material into a uniform and transparent state under stirring, stir and keep warm at 90-100°C for 10-15 minutes, discharge, cool and solidify into a solid block; then use a drum tablet machine or a small BF-100 type The slicer is processed into slices to make a flake-like anti-explosive agent with a thickness of about 0.5-1.0 mm.

[0031] Utilize the present invention, apply to the manufacture of explosion-proof cryst...

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Abstract

The invention provides a modified explosion-proof agent which is used to prepare totally explosion-free crystal ammonium nitrate. The invention is characterized in that the explosion-proof agent is composed of anti-hardening agent, flame retardant, misfiring agent and flameproof agent. The invention aims to solve the problems that the existing explosion-proof agent for ammonium nitrate has large dosage and poor explosion-proof effect in the actual use, and the modification technology of the existing explosion-proof agent follows the mechanical mixing method and the products can easily get hardened in the storage period. As the invention adds long-chain fatty amine cationic surfactant as anti-hardening agent, the products can be stored for six months and the loose degree reaches more than 95%; the selection of high-heat-capacity flame retardant effectively prevents the generation of explosion hot points; the introduction of misfiring agent enables the explosion to be instantly extinguished; the flameproof agent which generates the protective film with the ammonium nitrate radically prevents the source of explosion caused by redox reaction and prevents producing weapons of terror with ammonium nitrate. The invention can also be used as the effective explosion-proof agent for preparing granular ammonium nitrate through tower granulation process. The adding concentration of the invention is 1% to 2%.

Description

technical field [0001] The invention relates to a surfactant for preparing modified and passivated ammonium nitrate to completely lose its explosive performance, in particular to an anti-explosion agent for preparing modified ammonium nitrate. The anti-explosion agent is composed of anti-hardening agent, flame retardant, anti-explosion agent and anti-explosion agent. Background technique [0002] Ammonium nitrate is widely used as an agricultural fertilizer and as an explosive oxidizing agent, so it is also the main component of industrial explosives. In recent years, international terrorists have increasingly relied on ammonium nitrate as the main raw material to manufacture "earth explosives", causing explosion accidents, robbing banks and shopping malls, and causing serious unsafe factors to the society. Anti-knock agent that reduces fertilizer efficiency. [0003] Since the 1960s, scientific and technological personnel from all over the world have carried out a lot of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C05C1/02C09K3/00
Inventor 殷海权张云升殷翔杨前生任晓雪
Owner SHANXI TOND CHEMICAL CO LTD
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