METHOD FOR PRODUCING SPHERICAL pyroxylin gunpowder for sporting cartridges of 7.62 mm

摘要

A method for producing spherical powder pyroxylin to 7.62 mm sporting cartridge comprising preparing a powder lacquer with agitation in an aqueous medium with a mixture of nitrocellulose reciprocating together with technological wastes diphenylamine and solvent-ethyl acetate, dispersing the powder lacquer to the spherical particles and the removal of ethyl acetate, wherein that is poured into the reactor 4.5 ... 5.6 wt. parts of water in relation to the nitrocellulose charged with 1 wt. part of nitrocellulose with a nitrogen oxide content of 212.7 ... 214.0 mL NO / g and up to 30 wt% reciprocating process waste from previous operations, is poured under stirring, 3.8 ... 5.2 parts by weight of solvent -. of ethyl acetate was charged to . weight nitrocellulose 0.5 ... 0.8 wt% diphenylamine, are preparation of a powder lacquer at a temperature of 55 ... 68 ° C for 60 ... 80 min, then after entering the protective colloid - mezdrovogo adhesive in an amount of 0.8 ... 1.2 wt.% and 0.4 ... 0.8 wt.% of dextrin relative to the water, leading to crushing of the powder lacquer spherical particles for 70 ... 90 min n and a reactor temperature of 55 ... 68 ° C, is introduced in relation to water of 2.2 ... 2.5 wt.% sodium sulfate and lead stirring for 30 ... 40 min at a reactor temperature of 60 ... 68 ° C, distilling off the solvent from the powder elements are the temperature of coolant supplied to the reactor jacket, while for 10 ... 15 min coolant temperature is raised to 82 ... 86 ° C, and lead exposure, distilling off 70 ... 75 wt.% solvent, and then for 10 ... 15 minutes, the temperature the coolant is raised to 94 ... 98 ° C, and lead exposure until the temperature of the mixture in the reactor is 94 ... 96 ° C .