FIELD: method of production of heat-resistant explosives used for initiation and transmission of detonation in oil-and-gas producing industry.
SUBSTANCE: proposed method includes forming the conditions for activation of interaction of 1,5-dihalide-2,4- dinitrobenzenes with 2, 4, 6-trinitrohalogenobenzenes in dichloethane medium by Ullman reaction due to introduction of equi-molecular amounts of activating additives of aprotic solvents selected from dimethyl formamide, dimethyl sulfoxide, dimethyl acetamide, N-methyl pyrrolidone, acetonitrile into reaction mass at ratio of 1-3 mole of activator to mole of 1,5-dihalide-2,4-dinitrobenzene and use of nitric acid for liberation of octanite from mixture of reaction products. Temperature for forming the target product is reduced to 83-85°C; proposed method may be used for production of chloropolynitrobenzenes at yield increased to 82% of theoretical level.
EFFECT: enhanced efficiency; increased yield of target product.
3 cl, 2 tbl, 1 ex
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Authors
Dates
2005-11-10—Published
2004-08-23—Filed