Aluminium Powder - Slurry Explosive Formulation

Aluminium Powder - Slurry Explosive Formulation

In recent years, explosive blasting slurries, containing aqueous solutions of ammonium nitrate and other powerful inorganic oxidizers plus thickeners, fuels, and sensitizers, have come into extensive use. Slurry blasting compositions of low water content and high density, including substantial proportions of calcium nitrate as an oxidizer component, can be sensitized in various ways to produce economical explosive compositions. Sensitizers may include aluminum powder, granular explosives such as smokeless powder, TNT, etc.; a particularly preferred sensitizer or fuel is ethylene glycol. Solid carbonaceous fuels and conventional thickeners may be added. The calcium nitrate may be produced directly from burned lime with nitric acid and/or other nitrates. (9 claims)

Sr. No	GRADE	FREE AL. PURITY (% MIN)	WET SIEVE >45um(% MAX)	WATER COVERAGE AREA CM2/GM	FATTY ACID (% MAX)	BULK DENSITY GM/CC	APRTICLE SIZE DISTRIBUTION D50(um)	APPLICATION	USER INDUSTRIES
1	LDS	89	14	5000 TO 9000	4	0.20 ± 0.02	15-20	SLURRY EXPLOSIVES	MINING EXPLOSIVES
2	SDS	88	12	9000 TO 12000	4	0.20 ± 0.02	13-18	SLURRY EXPLOSIVES	MINING EXPLOSIVES
3	ALPHOS	93	65	2000 TO 5000	1.3	0.23 ± 0.03	70-75	PESTICIDES	PESTICIDES
	TEST METHOD	IS 438	ISO 1247	IS 438	IS 438	IN HOUSE	SYMPATEC(HELOS BF/BR-MAGIC)	--	--