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| 橡胶助剂生产废水中醋酸回收工艺研究 | |
| 引用本文： | 李学坤,杜海胜,李婉婷,谢斌,郑爱玲,李珍.橡胶助剂生产废水中醋酸回收工艺研究[J].应用化工,2009,38(6):868-871. |
| 作者姓名： | 李学坤 杜海胜 李婉婷 谢斌 郑爱玲 李珍 |
| 作者单位： | 1. 西北大学,化工学院,陕西,西安,710069 2. 陕西省产品质量监督检验所,陕西,西安,710054 3. 陕西省石油化工研究设计院,陕西,西安,710054 |
| 摘 要： | 采用有机溶剂络合萃取法研究了生产橡胶助剂废水中醋酸的回收工艺过程。实验表明,三辛胺为该体系的最佳萃取剂,优化的醋酸回收工艺路线为:减压蒸出丙酮,再加入三辛胺络合萃取醋酸,萃取相减压蒸馏回收醋酸后循环使用,处理后废水可排放。通过响应面法得出单级萃取操作的最佳工艺条件:相比(V废水/V萃取剂)1.06∶1,萃取时间41m in,萃取温度20℃。三级萃取醋酸回收率98%,醋酸质量分数达92%,同时回收丙酮11/100(V丙酮/V废水)。 |
| 关 键 词： | 废水 络合萃取 蒸馏 醋酸 三辛胺 响应面分析法 |
Study on recycling acetic acid from liquid waste in the rubber additive process |
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| LI Xue-kun,DU Hai-sheng,LI Wan-ting,XIE Bin,ZHENG Ai-ling,LI Zhen.Study on recycling acetic acid from liquid waste in the rubber additive process[J].Applied chemical industry,2009,38(6):868-871. | |
| Authors: | LI Xue-kun DU Hai-sheng LI Wan-ting XIE Bin ZHENG Ai-ling LI Zhen |
| Abstract: | A study on organic solvent extracting acetic acid from liquid waste in the rubber additive process has been studied.The optimization of the organic solvent was TOA through the experiment.The optimization of technics were as follows ∶distilled acetone in decompressor,extracted acetic acid by TOA,then reused the extraction solvent after distilling acetic acid in decompression.The waste water could be discharged directly after disposal.Response surface methodology was used to determine the optimal extraction conditions.The desired conditions were concluded:the ratio of liquid waste to extraction solvent 1.06 ∶1,extracting time 41 min,extracting temperature 20 ℃.The extraction rate reached 98%.The technics could get 92% acetic acid and acetone 11/100(V/V) simultaneously. |
| Keywords: | liquid waste complex extraction distillation acetone TOA response surface methodology |
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