METHOD OF PRODUCING GEL-LIKE WATER-CONTAINING EXPLOSIVE COMPOSITION Russian patent published in 2016 - IPC C06B25/00 C06B31/32 C06B45/18 

FIELD: blasting.

SUBSTANCE: invention relates to water-containing industrial explosives based on gel-like matrix sensitised with pyroxiline powder or a powerful explosive substance. Method of making explosive composition involves preparation of aqueous solution of oxidants, introduction of polyacrylamide with formation of pregelatinised solution of oxidants, introduction of structuring additive, introduction of powder or a powerful explosive filling of shell, structuring charge. Prior to introduction of powder or a powerful explosive, aluminium powder, whose particles have a hydrophobic coating, is added gel solution of oxidants. Production is performed in a mixer of gravity type. Mixing of pregelatinised solution of oxidants with aluminium powder is carried out until a homogeneous mass is obtained and dust formation stops. Structuring additive used is potassium dichromate and sodium thiosulphate or iron (ii) salt with sodium thiosulphate. One of components of additive is introduced in an aqueous solution of oxidants or pregelatinised solution of oxidants, and second component is added in pregelatinised solution of oxidants after complete distribution of first component in solution.

EFFECT: method provides safe technology of manufacturing of gel-like compositions with improved detonation characteristics.

4 cl