Simultaneous Selective Chlorination and Carbothermic Reduction of High-Iron Manganese Ore for the Recovery of Manganese Chloride and Metallic Iron
Metallurgical processing of low-grade manganese ore with high iron content is gaining increasing attention due to the gradual depletion of high-grade Mn ores, amid the difficulties in its efficient extraction for both Mn and Fe values in an environmentally-friendly manner. Attempting to tackle the d...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2019-10-01
|
| Series: | Metals |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2075-4701/9/10/1124 |
| _version_ | 1831600968374943744 |
|---|---|
| author | Dawei Yu Fuhui Cui Yunxiang Cong Chunxi Zhang Qinghua Tian Xueyi Guo |
| author_facet | Dawei Yu Fuhui Cui Yunxiang Cong Chunxi Zhang Qinghua Tian Xueyi Guo |
| author_sort | Dawei Yu |
| collection | DOAJ |
| description | Metallurgical processing of low-grade manganese ore with high iron content is gaining increasing attention due to the gradual depletion of high-grade Mn ores, amid the difficulties in its efficient extraction for both Mn and Fe values in an environmentally-friendly manner. Attempting to tackle the difficulties, this paper describes an innovative process for selectively chlorinating and reducing the high-Fe manganese ore in a simultaneous manner, aiming to produce water-soluble MnCl<sub>2</sub> and metallic Fe. After pre-mixing with carbonaceous reductant, CaCl<sub>2</sub> and MgCl<sub>2</sub> as the chlorinating agent, the Mn ore was heated at 1000 °C. As much as 89.4% Mn can be chlorinated in its water-soluble form, with dissolution of only 3.0% Fe. The presence of CaCl<sub>2</sub> during carbothermic reduction resulted in significant promotion in both the Fe reduction rate and formation of large metallic Fe particles due to the segregation effect, facilitating subsequent separation. Selective Mn chlorination by MgCl<sub>2</sub> took place with or without the involvement of SiO<sub>2</sub>, forming MgSiO<sub>4</sub> or MgO, respectively. |
| first_indexed | 2024-12-18T14:54:12Z |
| format | Article |
| id | doaj.art-ed5741874b934c1b9bf6a4d8f320bdda |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-12-18T14:54:12Z |
| publishDate | 2019-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-ed5741874b934c1b9bf6a4d8f320bdda2022-12-21T21:04:05ZengMDPI AGMetals2075-47012019-10-01910112410.3390/met9101124met9101124Simultaneous Selective Chlorination and Carbothermic Reduction of High-Iron Manganese Ore for the Recovery of Manganese Chloride and Metallic IronDawei Yu0Fuhui Cui1Yunxiang Cong2Chunxi Zhang3Qinghua Tian4Xueyi Guo5School of Metallurgy and Environment, Central South University, 932 Lushan South Road, Changsha 410083, ChinaSchool of Metallurgy and Environment, Central South University, 932 Lushan South Road, Changsha 410083, ChinaSchool of Metallurgy and Environment, Central South University, 932 Lushan South Road, Changsha 410083, ChinaSchool of Metallurgy and Environment, Central South University, 932 Lushan South Road, Changsha 410083, ChinaSchool of Metallurgy and Environment, Central South University, 932 Lushan South Road, Changsha 410083, ChinaSchool of Metallurgy and Environment, Central South University, 932 Lushan South Road, Changsha 410083, ChinaMetallurgical processing of low-grade manganese ore with high iron content is gaining increasing attention due to the gradual depletion of high-grade Mn ores, amid the difficulties in its efficient extraction for both Mn and Fe values in an environmentally-friendly manner. Attempting to tackle the difficulties, this paper describes an innovative process for selectively chlorinating and reducing the high-Fe manganese ore in a simultaneous manner, aiming to produce water-soluble MnCl<sub>2</sub> and metallic Fe. After pre-mixing with carbonaceous reductant, CaCl<sub>2</sub> and MgCl<sub>2</sub> as the chlorinating agent, the Mn ore was heated at 1000 °C. As much as 89.4% Mn can be chlorinated in its water-soluble form, with dissolution of only 3.0% Fe. The presence of CaCl<sub>2</sub> during carbothermic reduction resulted in significant promotion in both the Fe reduction rate and formation of large metallic Fe particles due to the segregation effect, facilitating subsequent separation. Selective Mn chlorination by MgCl<sub>2</sub> took place with or without the involvement of SiO<sub>2</sub>, forming MgSiO<sub>4</sub> or MgO, respectively.https://www.mdpi.com/2075-4701/9/10/1124manganese orechlorinationcarbothermic reductionmanganese chloridesegregation |
| spellingShingle | Dawei Yu Fuhui Cui Yunxiang Cong Chunxi Zhang Qinghua Tian Xueyi Guo Simultaneous Selective Chlorination and Carbothermic Reduction of High-Iron Manganese Ore for the Recovery of Manganese Chloride and Metallic Iron Metals manganese ore chlorination carbothermic reduction manganese chloride segregation |
| title | Simultaneous Selective Chlorination and Carbothermic Reduction of High-Iron Manganese Ore for the Recovery of Manganese Chloride and Metallic Iron |
| title_full | Simultaneous Selective Chlorination and Carbothermic Reduction of High-Iron Manganese Ore for the Recovery of Manganese Chloride and Metallic Iron |
| title_fullStr | Simultaneous Selective Chlorination and Carbothermic Reduction of High-Iron Manganese Ore for the Recovery of Manganese Chloride and Metallic Iron |
| title_full_unstemmed | Simultaneous Selective Chlorination and Carbothermic Reduction of High-Iron Manganese Ore for the Recovery of Manganese Chloride and Metallic Iron |
| title_short | Simultaneous Selective Chlorination and Carbothermic Reduction of High-Iron Manganese Ore for the Recovery of Manganese Chloride and Metallic Iron |
| title_sort | simultaneous selective chlorination and carbothermic reduction of high iron manganese ore for the recovery of manganese chloride and metallic iron |
| topic | manganese ore chlorination carbothermic reduction manganese chloride segregation |
| url | https://www.mdpi.com/2075-4701/9/10/1124 |
| work_keys_str_mv | AT daweiyu simultaneousselectivechlorinationandcarbothermicreductionofhighironmanganeseorefortherecoveryofmanganesechlorideandmetalliciron AT fuhuicui simultaneousselectivechlorinationandcarbothermicreductionofhighironmanganeseorefortherecoveryofmanganesechlorideandmetalliciron AT yunxiangcong simultaneousselectivechlorinationandcarbothermicreductionofhighironmanganeseorefortherecoveryofmanganesechlorideandmetalliciron AT chunxizhang simultaneousselectivechlorinationandcarbothermicreductionofhighironmanganeseorefortherecoveryofmanganesechlorideandmetalliciron AT qinghuatian simultaneousselectivechlorinationandcarbothermicreductionofhighironmanganeseorefortherecoveryofmanganesechlorideandmetalliciron AT xueyiguo simultaneousselectivechlorinationandcarbothermicreductionofhighironmanganeseorefortherecoveryofmanganesechlorideandmetalliciron |