| 采用络合萃取法从维生素B12发酵废液中回收丙酸 |
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| 引用本文： | 王金宇,高文惠,罗敏,张华峰.采用络合萃取法从维生素B12发酵废液中回收丙酸[J].化工环保,2004,24(5):358-361. |
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| 作者姓名： | 王金宇 高文惠 罗敏 张华峰 |
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| 作者单位： | 河北科技大学生物科学与工程学院,河北,石家庄,050018 |
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| 基金项目： | 河北省科技攻关课题(01276718D) |
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| 摘 要： | 采用络合萃取法回收维生素B12发酵废液中的丙酸，确定了络合萃取的最佳工艺条件：以0．5mol／L的磷酸三丁酯(TBP)为络合剂，油水比(体积比)为1：2，常温下萃取30min。在最佳工艺条件下单级萃取率为56％左右，四级萃取率可达98％以上。络合萃取过程中使用的有机溶剂可反复使用，使成本大大降低。
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| 关 键 词： | 发酵 废液 丙酸 络合萃取 维生素B12 综合利用 |
| 文章编号： | 1006-1878(2004)05-0358-04 |
| 修稿时间： | 2003年9月29日 |
Recovery of Propionic Acid from the Waste Liquor in Vitamin B12 Fermentation by Complex Formation Extraction |
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| Wang Jinyu,Gao Wenhui,Luo Min,Zhang Huafeng.Recovery of Propionic Acid from the Waste Liquor in Vitamin B12 Fermentation by Complex Formation Extraction[J].Environmental Protection of Chemical Industry,2004,24(5):358-361. |
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| Authors: | Wang Jinyu Gao Wenhui Luo Min Zhang Huafeng |
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| Abstract: | Propionic acid was recovered from the waste liquor in vitamin B12 fermentation by complex formation extraction. The optimal extraction conditions were determined as follows: 0.5 mol/L of tributyl phosphate (TBP)as complexing agent, 1:2 of volume ratio of organic phase to aqueous phase, room temperature and 30 minutes of extraction time. Under these conditions, the extraction yield of single - stage extraction is 56% and that of four - stage extraction is over 98 % . The organic solvent can be recycled, decreasing the extraction cost. |
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| Keywords: | fermentation waste liquor propionic acid complex formation extraction vitamin B12 comprehensive utilization |
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