Method for producing emulsifier used for emulsion explosive

A production method and technology of emulsified explosives, applied in non-explosive/non-thermal agent components, explosives, offensive equipment, etc., can solve the problem of low viscosity of emulsifier Span-80, inability to meet the quality and performance requirements of explosives, and poor production process of emulsified explosives etc. to achieve strong emulsifying properties, stable quality, and increased speed

Inactive Publication Date: 2012-10-17
SICHUAN YAHUA IND GRP
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Problems solved by technology

[0002] The storage stability of emulsion explosives depends on the combined effects of raw materials, formulations, emulsifiers, manufacturing processes and other factors, among which the quality of emulsifier is one of the important factors. It is used in the production of emulsion explosives in various ways, but in the production of emulsion explosives, under the same conditions, the quality of Span-80 products from different manufacturers is quite different, and some cannot be used in emulsion explosives at all. The most fundamental The reason is that the industrial product emulsifier Span-80 commonly produced by the current production process has low viscosity, which is poorly adapted to the production process of emulsion explosives, and can no longer adapt to the shortcomings of modern emulsion explosive continuous automatic production technology and explosive quality performance requirements.

Method used

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  • Method for producing emulsifier used for emulsion explosive

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Embodiment 1

[0020] First 310g of 68% (weight) sorbitol liquid and 250g of oleic acid are added in the reactor, fully stirred, the temperature is raised in vacuum at 100 ± 20°C, when the vacuum degree reaches 0.75MPa, 2g of hypophosphorous acid is added, and the temperature is raised to 140°C in vacuum, and then Add 250g of oleic acid and 5g of sodium hydroxide, raise the temperature to 202°C in vacuum and react for 3.5 hours. After the reaction, the viscous light yellow emulsifier Span-80 is obtained. The detection is based on the chemical industry standard H G / T3508-1999 and the national standard GB3536. .

Embodiment 2

[0022] At first 290g of 68% (weight) sorbitol liquid and 250g of oleic acid are added in the reactor, fully stirred, and vacuum temperature rises 100 ± 20 ℃, when vacuum tightness reaches 0.75MPa, add hypophosphorous acid 2g, vacuum temperature rises to 150 ℃, then Add 250g of oleic acid and 6g of sodium hydroxide, heat up to 200°C in vacuum and react for 3.5 hours. After the reaction, the viscous light yellow emulsifier Span-80 is obtained. The detection is based on the chemical industry standard H G / T3508-1999 and the national standard GB3536. .

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Abstract

The invention relates to a method for producing an ester nonionic surfactant used for an emulsion explosive. According to the invention, a food additive Vc grade d-sorbitol solution and plant oleic acid as raw materials, hypophosphorous acid and sodium hydroxide as catalysts, and the emulsifier dehydrated sorbitan monooleate (Span-80). Compared with the prior art, the emulsifier has the advantages of stable product quality, light color and high viscosity, and the method solves the problems of quality performance and storage stability of Span-80 used in the emulsion explosive in the prior art.

Description

technical field [0001] The invention relates to a production method of an ester nonionic surfactant used in emulsified explosives. Background technique [0002] The storage stability of emulsion explosives depends on the combined effects of raw materials, formulations, emulsifiers, manufacturing processes and other factors, among which the quality of emulsifier is one of the important factors. It is used in the production of emulsion explosives in various ways, but in the production of emulsion explosives, under the same conditions, the quality of Span-80 products from different manufacturers is quite different, and some cannot be used in emulsion explosives at all. The most fundamental The reason is that the industrial product emulsifier Span-80 commonly produced by the current production process has low viscosity, which is poorly adapted to the production process of emulsion explosives, and can no longer adapt to the shortcomings of modern emulsion explosives continuous au...

Claims

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Application Information

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IPC IPC(8): C06B23/00
Inventor 张强周晓琼倪元芳颜书荣易大均
Owner SICHUAN YAHUA IND GRP
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