| Leaching of chromite ore processing residue from non-calcium roasting with hydrochloric acid | |
| 其他题名 | Leaching of chromite ore processing residue from non-calcium roasting with hydrochloric acid |
| Ye, Peng1; Quan, Xuejun1; Qin, Xianfeng1; Feng, Chengfei1; Li, Gang1; Lu, Cunfang1; Qi, Xueqiang1; Jiang, Li2 | |
| 2019-11-01 | |
| 发表期刊 | Huagong Xuebao/CIESC Journal
 |
| ISSN | 0438-1157 |
| 卷号 | 70期号:11页码:4428-4436 |
| 摘要 | Chromite ore precessing residue is the remaining tailings of chromite produced by chromite. It is also a secondary resource because it contains a lot of ferrum, chromium, aluminum and magnesium. In this work, a hydrometallurgy process was introduced to recover chromium, ferrum, aluminum and magnesium by using hydrochloride acid as a lixiviant and three variables were studied namely, liquid-solid ratio, leaching temperature and period. The results indicated that chromium, ferrum, aluminum and magnesium can successfully be recovered from COPR and the optimum leaching conditions were at the liquid-solid ratio of 5.6 with 110 and 6 h period. Simultaneously, the leaching efficiencies of chromium, ferrum, aluminum and magnesium reached 67.76%, 89.89%, 93.99% and 95.21%, respectively. A shrinking core model with the surface chemical reaction control can be used to describe the leaching kinetics of chromium, ferrum, aluminum and magnesium from COPR in the concentrated hydrochloride acid solution at 90-110, where the apparent activation energy are 102.31, 78.10, 66.44 and 81.66 kJ•mol-1, respectively. The analysis of particle size distribution also showed a reduction in particle size, indicating the dissolution of the solid particles. The application of Toxic Leaching Characteristic Procedure (TLCP) showed nearly no Cr6+ in the effluent, indicating that the residue will not contaminate the environment through leaching, and can be used for load bearing or backfill material. © All Right Reserved. |
| 关键词 | Activation energy Calcium Chromite deposits Chromium Enzyme kinetics Leaching Metal recovery Ore roasting Particle size Particle size analysis Reaction kinetics Recovery Surface reactions Apparent activation energy Chromite ore processing residues COPR Hydrochloride acid Leaching characteristics Optimum leaching conditions Shrinking core model Surface chemical reactions |
| DOI | 10.11949/0438-1157.20190353 |
| URL | 查看原文 |
| 收录类别 | EI ; PKU ; ISTIC |
| 语种 | 中文 |
| 出版者 | Materials China |
| EI入藏号 | 20195207924769 |
| EI分类号 | 504.3 Heavy Metal Mines ; 533.1 Ore Treatment ; 543.1 Chromium and Alloys ; 549.2 Alkaline Earth Metals ; 802.2 Chemical Reactions ; 802.3 Chemical Operations ; 951 Materials Science |
| 原始文献类型 | Journal article (JA) |
| 文献类型 | 期刊论文 |
| 条目标识符 | https://ir.cqcet.edu.cn/handle/39TD4454/3103 |
| 专题 | 重庆电子科技职业大学 |
| 作者单位 | 1.Institute of Chemistry and Chemical Engineering, Chongqing University of Technology, Chongqing; 400054, China; 2.Artificial Intelligence and Big Data College, Chongqing College of Electronic Engineering, Chongqing; 401331, China |
| 推荐引用方式 GB/T 7714 | Ye, Peng,Quan, Xuejun,Qin, Xianfeng,et al. Leaching of chromite ore processing residue from non-calcium roasting with hydrochloric acid[J]. Huagong Xuebao/CIESC Journal,2019,70(11):4428-4436. |
| APA | Ye, Peng.,Quan, Xuejun.,Qin, Xianfeng.,Feng, Chengfei.,Li, Gang.,...&Jiang, Li.(2019).Leaching of chromite ore processing residue from non-calcium roasting with hydrochloric acid.Huagong Xuebao/CIESC Journal,70(11),4428-4436. |
| MLA | Ye, Peng,et al."Leaching of chromite ore processing residue from non-calcium roasting with hydrochloric acid".Huagong Xuebao/CIESC Journal 70.11(2019):4428-4436. |
| 条目包含的文件 | 条目无相关文件。 | |||||
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