Study on Clean Production Technologies of Electrolysis Manganese Passivation

Abstract:

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The passivator of potassium dichromate is one of the main electrolysis manganese passivation technologies in China. The biggest problem of hexavalent chromium passivation is chromium emission. The end-pipe treatment of Cr-containing effluents can be understood as detoxification and precipitation. Here the highly toxicity Cr(Ⅵ) is reduced to low toxicity Cr(Ⅲ) . In alkaline conditions, Cr (Ⅲ)is precipitated in the type of chromium hydroxide and produce chromium residue. The landfill of Chromium residue is a big problem to environment safety. The measures of clean process were reviewed around with emission reduction of Cr.

Info:

Periodical:

Advanced Materials Research (Volumes 308-310)

Edited by:

Jian Gao

Pages:

790-795

DOI:

10.4028/www.scientific.net/AMR.308-310.790

Citation:

B. Fan et al., "Study on Clean Production Technologies of Electrolysis Manganese Passivation", Advanced Materials Research, Vols. 308-310, pp. 790-795, 2011

Online since:

August 2011

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Price:

$35.00

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