The invention discloses a method for treating high-
sulfur materials through continuous pressure
oxygen leaching. The method comprises the steps of material preparation, liquid preparation through pressure
oxygen leaching,
flash evaporation, liquid-
solid separation, washing, heat exchange and the like; the
reaction temperature is kept through heat release in the
oxidation process of low-valence
sulfur in the materials, steam consumption and additive consumption are avoided, redundant heat in the reaction process is consumed by introducing cooling media, the
reaction temperature rise is effectively controlled, and reaction
heat energy is sufficiently and comprehensively utilized through heat exchange. According to the method, continuous pressure leaching is conducted in
one stage,
flash evaporation, continuous cooling and
pressure reduction are conducted in another stage, leaching residues do not need to be treated to recycle
sulfur, the whole production process is continuous, the
automatic control degree is high, self-heating is achieved in the reaction process, the
reaction temperature does not need to be kept by adding elemental sulfur or steam, the leaching time is short, the
metal yield is high, the production
energy consumption is low, and the continuity, the stability and the safety of production operation are higher.