Emulsifying agent for emulsification blasting agent mixing vehicle and synthesizing method thereof

Abstract

The present invention provides an emulsifier for emulsified explosive mixture vehicle. The components are shown in the right formula. The content of each component is as follows: 30 weight percent to 70 weight percent of (I), 10 weight percent to 50 weight percent of (II), 10 weight percent to 40 weight percent of (III), and 10 weight percent to 20 weight percent of (IV). The synthesis method of the emulsifier is: 20 weight percent to 40 weight percent of hydroxy-terminated polyoxyethylene, 20 weight percent to 40 weight percent of polyisobutylene anhydride, 0.3 weight percent to 1.2 weight percent of NaOH or KOH aqueous solution (with concentration of 30 weight percent to 60 weight percent) are mixed; the mixture is heated and vacuumed; the esterification reaction is done for 3 to 8 hours at a temperature between 150 DEG C to 300 DEG C and under pressure of minus 0.02MPa to minus 0.08MPa; after the temperature is lowered to be between 60 DEG C and 120 DEG C, 20 weight percent to 50 weight percent of alkyl sulfonate aqueous solution (with concentration of 30 weight percent to 70 weight percent) is added; the temperature is kept for 1 to 3 hours under atmospheric pressure. The emulsifier has the characteristics of low cost, good hydrophilicity, easy emulsification and so on; a composite three-dimensional mesh interface membrane can be formed in the emulsification process; the strength and thickness of emulsified film are increased; the emulsion effects and emulsion stability are improved; the prepared latex matrix has good stability of storage; the emulsified explosives has good water resistance, no detonator sensitivity and good security.

Description

technical field [0001] The invention relates to emulsifying agent technology, especially emulsifying agent used for emulsified explosive mixing vehicle and its synthesis method. Background technique [0002] Emulsion explosive mixing vehicle is an automatic machine that integrates transportation, preparation, and charging into one for continuous emulsification and sensitization production and processing of emulsion explosives at the blasting site of open-pit mines, and directly transports them to the blast hole. equipment. The prepared emulsion explosive is water-in-oil type (w / o), has no detonator sensitivity, has the characteristics of good safety, simple preparation process, excellent detonation performance and the like. Emulsion explosives are mainly composed of inorganic oxidant salt solution, oil phase material and emulsifier. Using an emulsifier to make less than 10wt% of the oil phase material as a continuous phase emulsifies more than 90wt% of the inorganic oxidan...

AI Technical Summary

Problems solved by technology

Domestically produced polyisobutylene series emulsifiers have high viscosity and do not meet the requirements for emulsified explosive mixing vehicles, so they are rarely used in the industrial production of explosive mixing vehicles

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