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A kind of preparation method and application of zinc perchlorate carbohydrazide

A technology of carbohydrazide perchlorate and carbohydrazide nitrate combined with zinc, which is applied in the field of energetic materials, primary explosives, and civil blasting equipment, and can solve problems such as high price, corrosion of equipment environment, and rare perchloric acid.

Active Publication Date: 2021-05-18
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, because strong oxidizing by-products such as chlorine gas and hypochlorous acid are produced in the production process of perchloric acid, which will cause serious corrosion and pollution to equipment and the surrounding environment, many departments of the country have also taken measures to produce perchloric acid. Strict management and control measures have been put in place, making perchloric acid extremely rare and becoming an expensive and scarce material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Zinc perchlorate carbohydrazide [Zn(CHZ) 3 ](ClO 4 ) 2 The specific preparation steps are as follows:

[0034] (1) Zinc nitrate solution is prepared with zinc nitrate powder, crystal form control agent II (Tween 80), deionized water and 60% nitric acid aqueous solution with a pH value between 4 and 5; wherein, zinc nitrate The mass fraction of crystal form control agent II is 20%, and the mass fraction of crystal form control agent II is 0.002%;

[0035] Use carbohydrazide powder, crystal form control agent I (sodium carboxymethyl cellulose), deionized water and nitric acid aqueous solution with a mass fraction of 60% to prepare hydrazine carbonate solution, and the pH value can be between 5 and 6; wherein, The mass fraction of carbohydrazide is 28%, and the mass fraction of crystal form control agent I is 0.003%;

[0036] The ammonium perchlorate solution is prepared by ammonium perchlorate powder, crystal form control agent III (dextrin), deionized water and nitri...

Embodiment 2

[0041] Zinc perchlorate carbohydrazide [Zn(CHZ) 3 ](ClO 4 ) 2 The specific preparation steps are as follows:

[0042] (1) Zinc oxide powder, crystal form control agent II (Tween 20), deionized water and 60% nitric acid aqueous solution are prepared into zinc nitrate solution, and the pH value is between 4 and 6; wherein, nitric acid The mass fraction of zinc is 15%, and the mass fraction of crystal form control agent II is 0.004%;

[0043] Carbohydrazide powder, crystal form control agent I (dextrin), water and nitric acid aqueous solution with a mass fraction of 60% are prepared into a carbohydrazide solution, and the pH value is between 5 and 6; wherein, the carbohydrazide The mass fraction is 25%, and the mass fraction of crystal form control agent I is 0.003%;

[0044] Ammonium perchlorate powder, crystal form control agent III (polyacrylamide, molecular weight 20 million), deionized water and 60% nitric acid aqueous solution are prepared to make ammonium perchlorate s...

Embodiment 3

[0049] Zinc perchlorate carbohydrazide [Zn(CHZ) 3 ](ClO 4 ) 2 The specific preparation steps are as follows:

[0050] (1) Ammonium perchlorate solution was prepared according to the method described in Example 1, and 60 L was added to the compounder as the bottom liquid, stirred at a speed of 120 r / min and heated to 75 ° C;

[0051] (2) Prepare the zinc nitrate solution according to the method described in Example 2, measure 33L of the solution and add it to the above-mentioned combiner within 20min, after the zinc nitrate solution has been added dropwise, continue to stir the reaction mixture at 75°C 10min, zinc nitrate solution reacts with ammonium perchlorate solution to prepare zinc perchlorate aqueous solution;

[0052] (3) Prepare the carbohydrazide solution according to the method described in Example 1, measure 35L of the solution and add it dropwise to the above-mentioned compounder within 30min, after the carbohydrazide solution has been added dropwise, continue t...

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Abstract

The invention relates to a preparation method and application of zinc perchlorate carbohydrazide, and belongs to the technical fields of primary explosives, civil blasting equipment and energetic materials. The method of the present invention prepares zinc perchlorate carbohydrazide product by first reacting zinc nitrate aqueous solution and carbohydrazide aqueous solution and then reacting with perchlorate aqueous solution or by first reacting perchlorate aqueous solution and zinc nitrate aqueous solution Reaction with carbohydrazide aqueous solution to obtain perchloric acid carbohydrazide zinc product, the method avoids the direct use of perchloric acid, the raw material is cheap and easy to obtain, and has high safety; the perchloric acid carbohydrazide zinc product prepared by this method Zinc has good fluidity, narrow particle size distribution range, and high yield. It has a good application prospect in primary explosives, pyrotechnic agents, gunpowder, mixed explosive energetic materials, and civil primary explosives.

Description

technical field [0001] The invention relates to a preparation method and application of zinc perchlorate carbohydrazide, and belongs to the technical fields of primary explosives, civil blasting equipment and energetic materials. Background technique [0002] Zinc perchlorate carbohydrazide is an energetic complex, which has been widely used as a primer in the civil blasting equipment industry. It has the characteristics of safety, no pollution, high energy and a wide range of applications. Assembly and use, especially suitable for the assembly and use of the currently emerging high-tech detonating material——industrial electronic detonator, which has been produced and used by many domestic enterprises on an industrial scale for many years. [0003] Perchloric acid needs to be used directly in the current zinc perchlorate carbohydrazide production process. Perchloric acid is a strong oxidant, which is highly corrosive and explosive. It is prone to danger during production, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07C281/06C06B45/00
CPCC06B45/00C07C281/06
Inventor 张同来李志敏杨利李新锐
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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