《Table 3:Comparison of heavy metal concentrations (%) in raw silica sand (RSS) , molding sand before
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《Recycling of waste foundry sands by chemical washing method》
The effects of washing technique on chemical bonding in the WFS were studied using FT-IR spectroscopy.FT-IR spectra of the WFS and WWFS are shown in Fig.2 and Table 2.The Si-O-Si and-OH ligand metal complex was not found from1400 to 1450 cm-1 in WWFS(H2SO4-NaOH-HCl of triptych washing,Table 2).This result shows that undesirable metals in WFS are removed from WWFS.
图表编号 | XD0049761700 严禁用于非法目的 |
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绘制时间 | 2019.03.01 |
作者 | Senay Balbay |
绘制单位 | Bilecik Seyh Edebali University, Vocational School, Department of Chemical Technologies |
更多格式 | 高清、无水印(增值服务) |
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