| 简介 |
PURPOSE : Provided is a method for treating waste propellants and explosives safely in a short time by mixing with yellow earth and hydrolyzing the mixture in the presence of catalyst. Also, the hydrolyzed mixture is neutralized for use as fertilizer components. CONSTITUTION : The treatment method comprises the steps of : mixing waste propellants and explosives containing nitrogen compounds with yellow earth having 5-30wt.% of moisture and 0.02-0.05mm of size, in a weight ratio of 1 : 0.1-2.0, and grinding; adding a catalyst selected from CuSO4·xH2O, MoO3 and CaSO4·xH2O, and an aqueous alkali solution(pH10-14) such as NaOH or KOH; and hydrolyzing at 0-80deg.C. The waste propellants and explosives are one or more of nitrogen compound selected from nitrocellulose, nitroglycerin, 2, 4-dinitrotoluene, potassium nitrate, aliphatic nitrate esters, etc. The above hydrolyzed mixture is neutralized with HCl, HNO3 or H3PO4 to adjust pH of the mixture between pH5-9 for use as fertilizer components. |
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