Emulsifying agent for industrial explosive and preparation method of emulsifying agent

A technology of industrial explosives and emulsifiers, applied in non-explosive/non-thermal agent components, explosives, offensive equipment, etc., can solve the problems of poor storage stability of emulsion explosives and high requirements for emulsification conditions, achieve high performance and storage stability, and improve Intrinsic safety, the effect of reducing the amount of emulsifier

Active Publication Date: 2013-04-03
NEW RESOURCES SHANGHAI ENVIRONMENTAL PROTECTIONTECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The emulsifiers involved in the above patents all have the disadvantages of high requirem

Method used

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  • Emulsifying agent for industrial explosive and preparation method of emulsifying agent
  • Emulsifying agent for industrial explosive and preparation method of emulsifying agent
  • Emulsifying agent for industrial explosive and preparation method of emulsifying agent

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1: Add 150g of polyisobutylene (Mn=1000) into the reaction kettle, heat to 130°C, add 16g of maleic anhydride, blow nitrogen to the pressure to 0.1mpa, heat up to 200°C, react for 4h, then blow off unreacted horses with nitrogen The prepared polyisobutylene maleic anhydride (olefin anhydride) will be used in the next reaction. Take 33g of olefinic anhydride and 0.5g of water, stir evenly in the reactor, increase the temperature to 70℃, add 0.8g of concentrated sulfuric acid (mass concentration is 98%), increase the temperature to 110℃ and react for 1h, add 1.4g of sodium carbonate and continue the reaction for 1h. 4g of triethanolamine was added to 130°C, and after the addition, the temperature was raised to 180°C and nitrogen was blown to 0.1mpa, and reacted for 4h to obtain the target product emulsifier.

Example Embodiment

[0026] Example 2: Add 195g polyisobutylene (Mn=1300) into the reaction kettle, heat to 170°C, add 21g fumaric anhydride, blow nitrogen to the pressure to 0.2mpa, heat up to 220°C, react for 7h, and then blow off the unreacted rich Maleic anhydride, the prepared polyisobutylene fumaric anhydride (olefin anhydride) will be used in the next reaction. Take 33g of olefinic anhydride and 0.3g of water, stir well in the reactor, increase the temperature to 50℃, add 2g of concentrated sulfuric acid, increase the temperature to 130℃ and react for 1h, add 2.5g of sodium carbonate and continue the reaction for 1h, increase to 160℃, add 6g of sorbitol After the addition, the temperature is raised to 150°C and nitrogen is blown to 0.2mpa, and the reaction is 6h to obtain the target product emulsifier.

Example Embodiment

[0027] Example 3: Put 150g polyisobutylene (Mn=1000) into the reaction kettle, heat to 150°C, add 19g maleic anhydride, bubbling nitrogen to a pressure of 0.15mpa, heating up to 230°C, reacting for 5h, then bubbling nitrogen to purge unreacted horses The prepared polyisobutylene maleic anhydride (olefin anhydride) will be used in the next reaction. Take 33g of olefinic anhydride and 0.8g of water, stir evenly in the reactor, increase the temperature to 70℃, add 1g of hydrochloric acid (mass concentration 37%), increase the temperature to 130℃ and react for 1h, add 1.5g of sodium carbonate and continue the reaction for 1h, and increase the temperature to 150℃ Add 10g of tetraethylenepentamine, after the addition, the temperature is raised to 190°C and nitrogen is blown to 0.2mpa, and reacted for 6h to obtain the target product emulsifier.

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Abstract

The invention discloses an emulsifying agent for industrial explosive and a preparation method of the emulsifying agent. A macromolecule emulsifying agent with a good emulsifying property and high emulsifying stability is obtained by using a lactonized product of polyolefin anhydride as an acylating agent to react with one or a plurality of alkylol amines, polyene polyamines or polyhydric alcohols. An emulsion explosive and a powdery emulsion explosive prepared by the macromolecule emulsifying agent have the advantages of high explosive property and long storage time.

Description

technical field [0001] The invention relates to an emulsifier which can be used for industrial explosives and a preparation method thereof. Background technique [0002] Emulsion explosive is a water-containing explosive developed in the 1960s and 1970s. It has the characteristics of strong water resistance, high density, good safety, and simple production process. Whether it is the preparation technology of emulsion explosives or the stability of emulsion explosives, emulsifiers play a very important role. The emulsifiers currently used in emulsion explosives mainly include Span-80 and polyisobutylene succinimide emulsifiers. Span-80, as the first generation of emulsifier used in emulsion explosives, has the advantages of small molecular weight and easy emulsion formation, and is suitable for the continuous production process of emulsion explosives. The compactness of the film formed at the oil-water interface is poor, and the molecular structure is irregular and unstable...

Claims

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Application Information

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IPC IPC(8): C06B23/00
Inventor 倪欧琪张凯铭俞珍权
Owner NEW RESOURCES SHANGHAI ENVIRONMENTAL PROTECTIONTECH CO LTD
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