Abstract: The present invention refers to a process for disposing of materials which are explosive active masses and/or contain them comprising the following steps:feeding the materials to be disposed off in a rotary cylindrical furnace (1), conveying the materials into a reaction zone and simultaneously forming compartments of the materials during conveyance, with the materials being thermally reacted in an oxygen-containing environment and the reaction products being fractionately discharged in the form of solid, liquid and gaseous products.

Abstract: In order to work up pyrotechnial material, I. pyrotechnical material A, where predominantly alkaline reaction products are formed, and pyrotechnical material B, where predominantly acidic reaction products are formed, are subjected to controlled combustion, II. the combined crude gases are cooled to a temperature below 400.degree. C, III. the combined crude gases are purified under dry conditions by first feeding them into a preliminary separator, coarse particles being separated off, and then feeding the crude gas via fine dust filters in order to separate off finely divided solids, and/or IV. the crude gas is optionally purified under wet conditions by first passing it through a rotary scrubber and then passing it via one or more absorption unit(s), and V. the pure gas is released as waste air.