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Method for purifying fume contaminated by hydrogen chloride and heavy metals, rendering inert said heavy metals and upgrading said hydrogen chloride
Method for purifying fume contaminated by hydrogen chloride and heavy metals, rendering inert said heavy metals and upgrading said hydrogen chloride
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机译:净化被氯化氢和重金属污染的烟雾,使所述重金属呈惰性并提纯所述氯化氢的方法
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摘要
The invention concerns a combined method for purifying fume contaminated by hydrogen chloride and heavy metals, rendering inert the heavy metals and upgrading the hydrogen chloride, which consists in: subjecting the fume (6) to a treatment, by dry or semi-humid process, with a basic reagent (8) comprising a soda compound; collecting from said treatment a solid residue (13) containing the heavy metals; dispersing the solid residue and a hydraulic binder (18) in water (20) to form an aqueous broth (21); and extracting from the broth the solid mass (28) which is eliminated, and an aqueous solution (29).
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