铬铁渣中水溶性六价铬浸取研究

Abstract

Abstract: Leaching conditions of water-soluble Cr⁶⁺ in ferrochrome slag were investigated.Optimal leaching conditions were confirmed as follows：mass ratio of deionized water to ferrochrome slag was 8，leaching temperature was 80 ℃， frequency of swing oscillator was 150 r/min，and leaching time was 5 h.Under those conditions，the amount of water-soluble Cr⁶⁺ in ferrochrome slag was as low as 2.758 μg per gram.Confirmation of leaching conditions of water-soluble Cr⁶⁺ in ferrochrome slag provided experimental basis for the evaluation of hazard of ferrochrome slag to the environment.

Key words: ferrochrome slag, water-solubility, leaching, Cr⁶⁺

CLC Number:

TQ136.11

WANG Shu-Xuan, LI Ning, LI Bo, LI Yu-Long. Study on leaching water-soluble Cr(Ⅵ) from ferrochrome slag[J]. INORGANICCHEMICALSINDUSTRY, 2012, 44(7): 47-.

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Inorganic Acid-Base-Salt Committee of CIESC

Study on leaching water-soluble Cr(Ⅵ) from ferrochrome slag

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