| 摘要 |
<p>The present invention relates to a method for manufacturing and collecting zinc chloride from dust of an electric furnace, which can solve the problem of the existing method without commercialization for entire recycling treatment, and which comprises: a dust preparation step (S1 step); a dust crushing step (S2 step); a hydrochloric acid reaction step (S3 step); a deironization and neutralization step (S4 step); a first filtration step (S5 step); a first drying step (S6); a selection and dissolution step (S7 step) for selecting and dissolving as applying ethyl alcohol (EtOH) on the obtained solid after drying; a second filtration step (S8 step) for removing residual impurities with a filter; a distillation step (S9 step) for distilling as applying water (H_2O) on a filtrate after the second filtration; a first commercialization step (S10 step) for commercializing 50 wt% of an aqueous zinc chloride (ZnCl_2) solution obtained after distilling the distillation step (S9 step); a second drying step (S11 step) for drying 50 wt% of an aqueous zinc chloride (ZnCl_2) solution obtained after distilling the distillation step (S9 step) with a hot air spraying dryer; and a second commercialization step (S12 step) for commercializing high purity zinc chloride (ZnCl_2) powder in a solid state obtained after second drying.</p> |
