FIELD: explosives.
SUBSTANCE: invention relates to gun powders and fuels based on nitroglycerine and cellulose nitrates and provides a method for separating diphenylamine from impurities containing amines and their derivatives. Diphenylamine is treated with isopropyl alcohol at weight ratio 1:(1.5-1.7) at heating to 30-40°C, after which held to complete dissolution of diphenylamine and then the latter is precipitated by water at water-to-alcohol weight ratio 1:4.
EFFECT: use of thus obtained impurities-free diphenylamine as stabilizer in gun powders and fuels allows gas emission to be lowered by a factor greater than one and a half.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHODS OF DETERMINING CHEMICAL RESISTANCE OF GUNPOWDER | 2013 |
|
RU2528125C1 |
| PELLET POWDER | 2008 |
|
RU2421432C2 |
| METHOD FOR STABILIZATION OF NITROCELLULOSE | 2003 |
|
RU2241716C1 |
| METHOD FOR WATER-DISPERSION PHLEGMATISATION OF GUNPOWDER | 2010 |
|
RU2445299C2 |
| FUSIBLE COMPOSITION FOR EMULSIVE MODERATION OF POWDERS | 2010 |
|
RU2448073C2 |
| MODULAR THROWING CHARGE (VERSIONS) AND METHOD OF ITS FABRICATION | 2012 |
|
RU2528984C2 |
| NITROISOBUTYLGLYCEROL NITRATE PREPARATION METHOD | 2006 |
|
RU2316538C1 |
| PROTECTIVE-ADHESION SUBLAYER TO ARMOR THE CHARGES OF SOLID ROCKET PROPELLANT | 2001 |
|
RU2217460C2 |
| PYROXYLIN PELLET POWDER FOR 5,6 mm SPORTS LONG RIFLE CARTRIDGE | 2010 |
|
RU2456258C2 |
| PYROXYLIN GUNPOWDER-BASE ENAMEL AND A METHOD OF ITS PRODUCING | 1997 |
|
RU2111995C1 |
