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A kind of emulsifier for emulsion explosive and preparation method thereof

An emulsion explosive and emulsifier technology, which is applied to non-explosive/non-thermal agent components, explosives, offensive equipment, etc., can solve the problems of low safety factor of emulsion explosives, limited hydrophilic groups of emulsifiers, and generation of ammonia or carbon dioxide. , to achieve the effect of increasing antistatic properties and emulsifying properties, excellent emulsifying ability, and reducing acid value

Active Publication Date: 2015-09-09
湖北同一科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the present invention improves the performance of the emulsifier and improves the emulsification performance and emulsification stability of the emulsifier, the emulsifier prepared by this method has limited hydrophilic groups, the emulsification efficiency is limited, and the required stirring intensity is more , a good emulsified state must be formed in a continuous production line or at a higher speed. In addition, this type of emulsifier has poor high temperature resistance and may produce ammonia or carbon dioxide at a higher temperature. The emulsion explosive prepared by this has With certain detonation sensitivity, the safety factor of emulsion explosive production is low

Method used

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  • A kind of emulsifier for emulsion explosive and preparation method thereof

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Effect test

Embodiment 1

[0026] Put 0.45mol (about 1000g) of pentaerythritol polyisobutylene succinate (the degree of polymerization is 3, the molecular weight of the polyisobutylene chain is 500), 0.45mol (27.83g) of boric acid, 200g of petroleum ether, under vacuum (vacuum degree 0.01~ 0.03MPa), heat up to 80°C, stir for 10h, add 0.045mol of Span-80, heat up to 100°C, continue the reaction for 5h, filter the crude product, and obtain the emulsifier of the present invention.

Embodiment 2

[0028] Put 0.84mol (about 1000g) polyisobutylene succinate (monoester type, the molecular weight of polyisobutylene chain is 1000), 0.084mol (5.20g) boric acid, 1.0g hydrochloric acid, 200g toluene, 200g xylene, in a vacuum state (vacuum degree 0.03~0.05MPa), heat up to 100°C, stir and react for 5h, add 8.4mol of Span-85, keep the temperature at about 150°C, continue to react for 4h, filter the crude product, and obtain the emulsifier according to the present invention .

Embodiment 3

[0030] Mix 0.055mol (about 1000g) polyisobutylene sorbitol succinate (the degree of polymerization is 8, the molecular weight of the polyisobutylene chain is 2000), 0.55mol (34.02g) boric acid, 10g phosphoric acid, 10gAlCl 3 , 2000g engine oil, in a vacuum state (vacuum degree 0.05~0.07MPa), heat up to 200°C, stir for 2 hours, add 0.44mol of Span-60, 0.44mol of Span-40, heat up to about 300°C, continue After reacting for 1 h, the crude product was filtered to obtain the emulsifier of the present invention.

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Abstract

The invention relates to an emulsifying agent mainly used for emulsion explosive and a preparation method of the emulsifying agent. The preparation method comprises the following steps: esterifying and modifying polyisobutene succinate by using boric acid, and then blocking by adopting a Span emulsifying agent and a fatty alcohol compound, thus obtaining the emulsifying agent. The emulsifying agent has good anti-static property and emulsifying property, is capable of effectively reducing the diameters of emulsifying molecules and improving the dispersibility of an emulsion, the emulsifying efficiency and the storage stability of the emulsion explosive.

Description

technical field [0001] The invention relates to an emulsifier for emulsion explosives, in particular to a preparation method of the emulsifier for emulsion explosives. Background technique [0002] Emulsion explosive is a new type of industrial explosive developed in the late 1960s. It has a series of advantages such as strong water resistance, good detonation performance, wide source of raw materials, and simple process. As an important component in the formulation of emulsion explosives, emulsifier can greatly improve the stability of emulsion explosives and improve the explosive performance to a certain extent. [0003] At present, the main emulsifiers used in domestic emulsion explosives industry are Span-80, polyisobutylene succinimide and their compound emulsifiers. Span-80 is a typical low molecular weight, non-ionic surfactant. Its advantages are good oil solubility, easy emulsification, low temperature and shear force requirements during emulsification, but high co...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C06B23/00
Inventor 夏涛蔡诗改刘扬杨文勇
Owner 湖北同一科技有限公司
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