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韩海生

Journal Publications

Cr (III) and Fe (II) recovery from the polymetallic leach solution of electroplating sludge by Cr (III)-Fe (III) coprecipitation on maghemite

Affiliation of Author(s):资生院

Journal:HYDROMETALLURGY

Key Words:WASTE-WATER; ADSORPTION MECHANISM; MAGNETIC SEPARATION; AQUEOUS-SOLUTION; REMOVAL; CR(VI); CHROMIUM;

Abstract:The separation of Cr(III) from the polymetallic leaching solution is a typical problem encountered during the recycling of electroplating sludge. In this paper, a novel method was proposed to recover Cr(III) and Fe(II) synchronously by forming the Cr(III)-Fe(III) coprecipitates on the surface of maghemite (gamma-Fe2O3) fine particles with Fe-2(SO4)(3) solution as the supplemental Fe source. The results showed that high Fe(III) to Cr(III) ratio in solution promoted the hydrolysis and precipitation of Cr(Ill). In addition, the maghemite particles, served as the crystal nuclei, could induce the f

Co-author:Sun Wei, Delian, Lyu, Han haisheng, Hu Yuehua, Niu Zhen, Yue Tong

Indexed by:Unit Twenty Basic Research

Document Code:8

Discipline:矿业工程

Document Type:J

Volume:184

Page Number:132-139

ISSN No.:0304-386X

Translation or Not:no