Recovery of Molybdenum (VI) from Aqueous Solution with Packed Foam Column by Steady-State

Abstract:

The purpose of this study is to recover molybdenum (VI) from aqueous solution with packed foam column by steady-state operation using hexadecyl trimethyl ammonium chloride as the surfactant. The parameters include air and feed flow rate, packing layer heights, surfactant concentration and pH etc, then the macroscopical dynamics is studied. The experimental results show that there are little effects of liquor pH, air flowrate and surfactant concentration on recovery rate and enrichment ratio of molybdenum within experimental conditions, but with increase of feed flow rate, recovery rate and enrichment ratio all decline clearly, with increase of packing height, recovery rate enhances evidently, and enrichment ratio decreases slowly. The macroscopical dynamics show that the process can be regarded as first order reaction. The fluid flow pattern is close to piston, indicating that there is little liquid backmixing and in favor of advancing separation efficiency by analyzing variance and distribution density function.

• Periodical: Advanced Materials Research (Volumes 641-642)
• Pages: 270-276
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.641-642.270
• Online since: January 2013
• Authors: Yong Qiang Zhang, Jing Wang, Mei Ling Shi, Xiao Xian Zhao
• Keywords: Molybdenum (VI), Packed Foam Column, Recovery, Steady-State Operation

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