FIELD: chemistry.
SUBSTANCE: initial raw material is crushed to fraction 0.25-0.5 mm, mixed with water in equal ratio, loaded into working reservoir of autoclave installation to 2/3 of its volume, sealed with locking membrane and heated to temperature, value of which corresponds to maximal pressure on thermobarogram, obtained for said raw material by method of vacuum decriptometry. After termination of leaching process, locking membrane is opened, with solid-gas-liquid flow from closed high-pressure volume being emitted into reaction chamber vacuum, reflected from its cylindrical wall, creating reverse explosion wave, which results in intensive fluid-thermal dissolution of said type of raw material.
EFFECT: increased output of valuable elements-admixtures from mineral raw material due to increased intensity of the process of metal compound destruction in processing of raw material with different degree of metamorphism.
4 cl, 7 dwg, 4 tbl
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