Highly Efficient Recovery of Vanadium and Chromium: Optimized by Response Surface Methodology | Zendy

Hao Peng | Zendy; Feng Wang | Zendy; Gang Li | Zendy; Jing Guo | Zendy; Bing Li | Zendy

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Highly Efficient Recovery of Vanadium and Chromium: Optimized by Response Surface Methodology

Author(s) -

Hao Peng,

Feng Wang,

Gang Li,

Jing Guo,

Bing Li

Publication year - 2019

Publication title -

acs omega

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.779

H-Index - 40

ISSN - 2470-1343

DOI - 10.1021/acsomega.8b02708

Subject(s) - chromium , vanadium , leaching (pedology) , response surface methodology , chemistry , materials science , order of reaction , metallurgy , nuclear chemistry , inorganic chemistry , reaction rate constant , kinetics , chromatography , environmental science , physics , quantum mechanics , soil science , soil water

Response surface methodology was applied to optimize the processing parameters (dosage of NaOH, dosage of H 2 O 2 , reaction temperature, liquid-to-solid ratio, stirring rate, and reaction time) that affected the leaching process of vanadium and chromium. The results indicated that the leaching process of vanadium was significantly affected by the dosage of NaOH and dosage of H 2 O 2 used in the experiments, whereas the processing parameters affected the leaching efficiency of chromium in the following order: dosage of H 2 O 2 (F) > reaction temperature (C) > dosage of NaOH (A) > reaction time (B) > stirring rate (D) > liquid-to-solid ratio (E). Almost 98.60% of vanadium and 79.82% of chromium were leached out during the leaching process.

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