Production technique of superfine antimony trioxide

The invention discloses a production technique of superfine antimony trioxide, comprising the steps of A, charging qualified pure antimony ingots into an antimony white furnace, melting at a high temperature, blowing in air via a blower such that antimony melt boils violently to produce gaseous antimony trioxide, allowing the antimony melt to react with air according to 4Sb+3O2=2Sb2O3, while non-reacted part is present in the form of base antimony and scum; B, allowing the gaseous Sb2O3 to condense, when contacting massive air at a flue gas quenching and mixing device at the furnace top, to form smoky antimony trioxide, and performing smoke cooling and precipitating on the smoky antimony trioxide via a surface cooling dust collector; C, collecting the cooled and precipitated antimony trioxide via bag dust collection so as to obtain collected particles which is finished antimony trioxide, and inspecting the finished antimony trioxide; D, packaging the finished antimony trioxide in bags,and returning the unqual