Separation of cerium oxide abrasive and glass powder in an abrasive-glass polishing waste by means of liquid-liquid-powder extraction method for recovery: A comparison of using a cationic and an anionic surfactant collector

Li Pang Wang, Yan Jhang Chen, Yun Chen Tso, Chia Feng Sheng, Josiane Ponou, Mingyin Kou, Heng Zhou, Wei Sheng Chen

Research output: Contribution to journalArticlepeer-review

Abstract

Applying a cerium oxide abrasive to polish glass components generates a polishing waste containing the cerium oxide abrasive and the glass powder produced during polishing. This research applied the liquid-liquid-powder extraction method to separate the cerium oxide abrasive and the polished glass powder in an abrasive-glass polishing waste for recovering the cerium oxide abrasive. Two liquids of isooctane and water were utilized. The effectiveness of using a cationic and an anionic surfactant collector, i.e., dodecylamine acetate (DAA) and sodium oleate (NaOL), respectively, in improving their extraction and separation was investigated and compared. The results indicated that NaOL addition could improve the mutual separation of cerium oxide abrasive and glass powder but DAA could not, because the former could selectively improve the extraction of cerium oxide abrasive from the water phase to isooctane phase whereas the latter could improve that of both powders. Optimal separation for the cerium oxide abrasive and the polished glass powder in an abrasive-glass polishing waste were achieved by adding NaOL of 7.5 kg/ton at pH 7; the content of cerium oxide abrasive in the solid recovered from the isooctane phase was 96.4% with a recovery of 88.1%.

Original languageEnglish
Article number4662
JournalSustainability (Switzerland)
Volume12
Issue number11
DOIs
Publication statusPublished - 2020 Jun 1

All Science Journal Classification (ASJC) codes

  • Geography, Planning and Development
  • Renewable Energy, Sustainability and the Environment
  • Management, Monitoring, Policy and Law

Fingerprint Dive into the research topics of 'Separation of cerium oxide abrasive and glass powder in an abrasive-glass polishing waste by means of liquid-liquid-powder extraction method for recovery: A comparison of using a cationic and an anionic surfactant collector'. Together they form a unique fingerprint.

Cite this