| 反应萃取处理染料中间体H酸和DSD酸工业废水 |
| 摘要点击 1663 全文点击 1899 投稿时间：2000-12-21 |
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| 中文关键词 H酸 DSD酸 络合萃取 三烷基胺 氯化季铵盐 |
| 英文关键词 H acid DSD acid extraction by chemical association Alamine 336 Aliquat 336 |
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| 中文摘要 |
| 分别采用三烷基胺(Alamine 336)和氯化季铵盐(Aliquat 336)为萃取剂,正辛醇为助溶剂,煤油为稀释剂,进行H酸、DSD酸及其工业废水反应萃取的实验研究结果表明,萃取率与溶液的pH值有关,Alamine 336体系适于酸性较强废水的处理,Aliquat 336体系适于中性废水的处理;采用多级错流萃取能有效地去除废水中两性官能团化合物和色度,去除率达99%以上,反萃率可达100%,工艺简单易行,溶剂可再生使用.
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| 英文摘要 |
| H acid and DSD acid are two important substrate of dyes, which wastewater is treated more difficultly because of containing multi component, with high chroma value and nonbiodegradability. A treatment way of this wastewater by extraction based on chemical association was carried out. Trialkylamine (Alamine 336) and chlorinated quaternary ammonium salt (Aliquat 336) were used as reacting agent with n octanol, kerosene as modifier and diluent respectively. Results showed that the extraction efficiency depended on solution pH. Alamine 336 could be used to treat waste water with low pH while Aliquat 336 was high efficiency for waste water with pH>6. Recovery yield of H acid and DSD acid was greater than 99% and the chroma value of wastewater was reduced effectively by simulating multi stages cross flow extraction. Back extraction is quite easy and the solvent could be regenerated. |
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