Removal of Iron from Solar Grade Silicon (SoG-Si) Cutting Slurry Waste by Ultrasound-Assisted Leaching with Dilute Sulfuric Acid

A comprehensive review on the ultrasound-enhanced leaching recovery of valuable metals: Applications, mechanisms and prospects

“…Meantime, the leaching time was shortened from 80 min to 50 min with the induction of ultrasound. Liu et al [118] also reported that the removal ratio of Fe from solar grade silicon cutting slurry waste could be improved by 7.84%, and the leaching time was reduced by 50% with ultrasound assistance. Kong et al [120] found that the maximum Fe removal efficiency, 95.24%, could be obtained with ultrasound leaching for 50 min, which was achieved by conventional leaching for 80 min.…”

“…The enhancement of the leaching process towards ferrous metals such as iron, manganese, and chromium from natural ores and secondary resources is another significant application of ultrasound [77] , [110] , [115] , [118] , [120] , [137] , [139] , [140] .…”