摘要
研究了大学物理化学实验中产生的乙醇 -环己烷废液的回收利用方法。以水为萃取剂 ,萃取分离乙醇和环己烷 ,得到乙醇水溶液和粗环己烷。粗环己烷经精馏提纯 ,得到纯度为 99 91%的纯品 ;乙醇水溶液经分馏、CaO脱水后得无水乙醇 ,纯度达 99 74 %。回收的环己烷、无水乙醇可再用于物理化学实验。
The paper shows the recovery method of the waste liquid of ethanol-cyclohexane produced during the experiment of college physical chemistry . The water used as extractor, ethanol aquous solution and cyclohexane were obtained by means of extraction. Through the rectification and extraction can obtain the purified cyclohexane (purity is 99.91%). Absolute alcohol (purity is 99.74%) was obtained from the ethanol aquous solution by means of rectification and CaO. The purified cyclohexane and absolute ethanol can be suitable to the experiment of physical chemistry.
出处
《化学工程师》
CAS
2004年第3期53-55,共3页
Chemical Engineer
