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第 46 卷第 3 期Vol. 46 No. 3
2016 年 6 月Jun 2016

所屬欄目:醫藥及中間體

絡(luò )合萃取法處理含酚廢水的研究
劉 歡1,2,陳 燦1,2,邱德躍1,2,張 燕1,2,馬 林1,2,秦岳軍1,2,干興利1,2 (1. 湖南化工研究院有限公司 國家農藥創(chuàng )制工程技術(shù)研究中心,湖南 長(cháng)沙 410014;2. 農用化學(xué)品湖南省重點(diǎn)實(shí)驗室,湖南 長(cháng)沙 410014)
摘 要:以磷酸三丁酯(TBP)作萃取劑,正辛醇作稀釋劑,絡(luò )合萃取處理鄰異丙氧苯酚(OP)廢水中的酚,考察了pH、稀釋劑配比、油/水相比和反應溫度等對OP廢水中揮發(fā)酚萃取效率的影響,并對酚進(jìn)行了反萃取分離回收。實(shí)驗結果表明:在pH=3、溫度為30℃時(shí),用含5%TBP的正辛醇萃取,萃取率達93%;再用10%的氫氧化鈉溶液于45℃,按體積比1∶1反萃取,酚回收率達90%,B/C由0.10提高到0.35。
關(guān)鍵詞:絡(luò )合萃;OP廢水;酚;反萃取
中圖分類(lèi)號:X78  文獻標識碼:A  文章編號:1009-9212(2016)03-0052-05
Treatment of Wastewater Containing Phenols by Complexation-extraction Process
LIU Huan1,2, CHEN Can1,2, QIU De-yue1,2, ZHANG Yan1,2, MA Lin1,2, QING Yue-jun1,2, GAN Xing-li1,2 (1. Hunan Research Institute of Chemistry and Chemical Engineering Co.,Ltd., National Engineering Research Center to Agrochemicals, Changsha 410014, China; 2. Hunan Province Key Laboratory for Agrochemicals, Changsha 410014, China)
Abstract:A complexatio-extraction treatment of wastewater containing phenols was developed using tributyl phosphate (TBP) as the extraction agent and octyl alcohol as the diluent. The factors on extraction efficiency of volatile phenol in OP waste water including pH, reaction temperature, ratio of diluent and oil/water was studied. The experimental results indicated that the extraction rate could reach 93% using 5% TBP-octyl alcohol at pH of 3 and a temperature of 30℃. The stripping extraction recovery of phenol was more than 90% at a temperature of 45℃,a concentration of NaOH of 10% and stripping ratio of 1:1. The B/C increased from 0.10 to 0.35.
Key words:complexation-extraction; OP wastewater; phenol; back-extraction
作者簡(jiǎn)介:劉 歡(1990-),女,湖南寧鄉人,助理研究員,碩士,研究方向:工業(yè)廢水處理及資源化。
收稿日期: 2016-05-1
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