Knowledge Management System Of Institute of process engineering,CAS
| Oxidative leaching of V-Cr-bearing reducing slag via a Cr(III) induced Fenton-like reaction in concentrated alkaline solutions | |
| Liu, Zhiqiang1,2; Lv, Yeqing1; Wang, Yaru1,2; Wang, Shaona1; Odebiyi, Oluwasegun Samuel1,2; Liu, Biao1; Zhang, Yi1; Du, Hao1,2 | |
| 2022-10-05 | |
| Source Publication | JOURNAL OF HAZARDOUS MATERIALS
 |
| ISSN | 0304-3894 |
| Volume | 439Pages:12 |
| Abstract | V-Cr-bearing reducing slag (VCRS) is considered a hazardous waste that can create ecosystem disasters if handled improperly. It consists of a considerable amount of heavy metals, such as vanadium (V) and chromium (Cr). In this study, we propose a novel process featuring a VCRS self-induced Cr(III)-Fenton-like reaction to efficiently recover V and Cr from hazardous VCRS. The generation of hydroxyl radicals (.OH) and determination of their effect on V and Cr oxidation were examined via electron spin resonance detection, free radical quenching, and terephthalic acid fluorescence probe methods. The V and Cr oxidative leaching processes were directly controlled by the amount of added H2O2 and generated.OH from the Cr(III)-Fenton-like reaction, which in turn was dependent on the amount of dissolved Cr(OH)(4)-. In a single oxidative leaching process, the leaching efficiencies of V and Cr reached 97.5 +/- 0.6 % and 85.2 +/- 0.8 %, respectively, and reached 99.4 & PLUSMN; 0.5 % and 94.6 +/- 0.9 %, respectively, from circular leaching owing to a continuous supply of dissolved Cr(OH)4- from fresh VCRS. This study identifies a novel approach to discovering deep oxidation of the VCRS while minimizing environmental contamination via a waste control strategy and can be considered an attractive alternative approach for the green treatment of VCRS. |
| Keyword | Vanadium and chromium oxidation Catalytic oxidation Hydroxyl radical Green treatment |
| DOI | 10.1016/j.jhazmat.2022.129495 |
| Language | 英语 |
| WOS Keyword | ELECTRON-SPIN-RESONANCE ; HYDROGEN-PEROXIDE ; HYDROXYL RADICALS ; VANADIUM SLAG ; CHROMIUM ; SOLUBILITY ; RECOVERY ; IDENTIFICATION ; DISSOLUTION ; BEHAVIOR |
| Funding Project | National Key Research and Development Program of China, China[2021YFC1910604] ; National Natural Science Foundation of China, China[52104402] ; HBIS Group Co., Ltd Key R&D Pro-gram, China[HG2022112] ; HBIS Group Co., Ltd Key R&D Pro-gram, China[20210036] ; S&T program of Hebei, China[20373808D] |
| WOS Research Area | Engineering ; Environmental Sciences & Ecology |
| WOS Subject | Engineering, Environmental ; Environmental Sciences |
| Funding Organization | National Key Research and Development Program of China, China ; National Natural Science Foundation of China, China ; HBIS Group Co., Ltd Key R&D Pro-gram, China ; S&T program of Hebei, China |
| WOS ID | WOS:000835664300003 |
| Publisher | ELSEVIER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/54377 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Du, Hao |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, CAS Key Lab Green Proc & Engn, Natl Engn Lab Hydromet Cleaner Prod Technol, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Liu, Zhiqiang,Lv, Yeqing,Wang, Yaru,et al. Oxidative leaching of V-Cr-bearing reducing slag via a Cr(III) induced Fenton-like reaction in concentrated alkaline solutions[J]. JOURNAL OF HAZARDOUS MATERIALS,2022,439:12. |
| APA | Liu, Zhiqiang.,Lv, Yeqing.,Wang, Yaru.,Wang, Shaona.,Odebiyi, Oluwasegun Samuel.,...&Du, Hao.(2022).Oxidative leaching of V-Cr-bearing reducing slag via a Cr(III) induced Fenton-like reaction in concentrated alkaline solutions.JOURNAL OF HAZARDOUS MATERIALS,439,12. |
| MLA | Liu, Zhiqiang,et al."Oxidative leaching of V-Cr-bearing reducing slag via a Cr(III) induced Fenton-like reaction in concentrated alkaline solutions".JOURNAL OF HAZARDOUS MATERIALS 439(2022):12. |
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