Recovery of Cerium Oxide Abrasive from an Abrasive–Glass Polishing Waste through Alkaline Roasting Followed by Water Leaching
Abrasive–glass polishing waste is generated from the polishing process of glass components by using cerium oxide abrasive, which contains the cerium oxide abrasive and the polished glass. This study attempted to recover the cerium oxide abrasive from the abrasive–glass polishing waste through removi...
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| Format: | Article |
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MDPI AG
2020-06-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/10/6/752 |
| _version_ | 1797566030693793792 |
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| author | Li-Pang Wang Pei-Hsin Liu Yan-Jhang Chen |
| author_facet | Li-Pang Wang Pei-Hsin Liu Yan-Jhang Chen |
| author_sort | Li-Pang Wang |
| collection | DOAJ |
| description | Abrasive–glass polishing waste is generated from the polishing process of glass components by using cerium oxide abrasive, which contains the cerium oxide abrasive and the polished glass. This study attempted to recover the cerium oxide abrasive from the abrasive–glass polishing waste through removing the polished glass by alkaline roasting using sodium hydroxide (NaOH) followed by water leaching. The experimental results indicated that the polished glass in the abrasive–glass polishing waste could be fully removed under the optimal alkaline roasting and water leaching conditions of roasting temperature of 450 °C, mass ratio of polishing waste to NaOH of 1:1, roasting time of 30 min, leaching pH of 3, leaching temperature of 25 °C, and liquid–solid ratio of 25 mL/g. The characteristics including elemental composition, particle size distribution, mineralogical phases, and morphology of the recovered cerium oxide abrasive obtained under the optimal conditions were similar to those of the original unused one, which was suitable to be reused for polishing again. |
| first_indexed | 2024-03-10T19:21:05Z |
| format | Article |
| id | doaj.art-a16cb817bc7c45339fbc09e1c7fa15c1 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T19:21:05Z |
| publishDate | 2020-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-a16cb817bc7c45339fbc09e1c7fa15c12023-11-20T02:58:36ZengMDPI AGMetals2075-47012020-06-0110675210.3390/met10060752Recovery of Cerium Oxide Abrasive from an Abrasive–Glass Polishing Waste through Alkaline Roasting Followed by Water LeachingLi-Pang Wang0Pei-Hsin Liu1Yan-Jhang Chen2Institute of Environmental Engineering and Management, College of Engineering, National Taipei University of Technology, Taipei 10608, TaiwanInstitute of Environmental Engineering and Management, College of Engineering, National Taipei University of Technology, Taipei 10608, TaiwanInstitute of Environmental Engineering and Management, College of Engineering, National Taipei University of Technology, Taipei 10608, TaiwanAbrasive–glass polishing waste is generated from the polishing process of glass components by using cerium oxide abrasive, which contains the cerium oxide abrasive and the polished glass. This study attempted to recover the cerium oxide abrasive from the abrasive–glass polishing waste through removing the polished glass by alkaline roasting using sodium hydroxide (NaOH) followed by water leaching. The experimental results indicated that the polished glass in the abrasive–glass polishing waste could be fully removed under the optimal alkaline roasting and water leaching conditions of roasting temperature of 450 °C, mass ratio of polishing waste to NaOH of 1:1, roasting time of 30 min, leaching pH of 3, leaching temperature of 25 °C, and liquid–solid ratio of 25 mL/g. The characteristics including elemental composition, particle size distribution, mineralogical phases, and morphology of the recovered cerium oxide abrasive obtained under the optimal conditions were similar to those of the original unused one, which was suitable to be reused for polishing again.https://www.mdpi.com/2075-4701/10/6/752cerium oxide abrasiverecoveryalkaline roastingwater leachingrare earth element |
| spellingShingle | Li-Pang Wang Pei-Hsin Liu Yan-Jhang Chen Recovery of Cerium Oxide Abrasive from an Abrasive–Glass Polishing Waste through Alkaline Roasting Followed by Water Leaching Metals cerium oxide abrasive recovery alkaline roasting water leaching rare earth element |
| title | Recovery of Cerium Oxide Abrasive from an Abrasive–Glass Polishing Waste through Alkaline Roasting Followed by Water Leaching |
| title_full | Recovery of Cerium Oxide Abrasive from an Abrasive–Glass Polishing Waste through Alkaline Roasting Followed by Water Leaching |
| title_fullStr | Recovery of Cerium Oxide Abrasive from an Abrasive–Glass Polishing Waste through Alkaline Roasting Followed by Water Leaching |
| title_full_unstemmed | Recovery of Cerium Oxide Abrasive from an Abrasive–Glass Polishing Waste through Alkaline Roasting Followed by Water Leaching |
| title_short | Recovery of Cerium Oxide Abrasive from an Abrasive–Glass Polishing Waste through Alkaline Roasting Followed by Water Leaching |
| title_sort | recovery of cerium oxide abrasive from an abrasive glass polishing waste through alkaline roasting followed by water leaching |
| topic | cerium oxide abrasive recovery alkaline roasting water leaching rare earth element |
| url | https://www.mdpi.com/2075-4701/10/6/752 |
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