최대기 김승욱 황운성 손승준 김훈식 김성현 2024-01-21T06:37:37Z 2024-01-21T06:37:37Z 2021-09-06 2004-08 0304-128X https://pubs.kist.re.kr/handle/201004/137349 In this work, olefin/paraffin separation was performed by using cuprous (Cu1+) ions as a selective separating agent for isoprene separation from C5 mixtures. The separating agent of cuprous (Cu1+) ion was prepared from the mixture of copper powder (Cu0) and cuprous nitrate trihydrate (Cu(NO3)2·3H2O, Cu2+) in the presence of pyridine and nitric acid as supporting agents. The mole ratio of isoprene separation was monitored by using GC and the separation with various ligand concentrations (such as pyridine and HNO3) was performed. The experimental results were shown that cuprous (Cu1+) ions were combined with diene like isoprene via the π-complexation by 2:1 molar ratio. Separation ability strongly depended on the ligand (pyridine and HNO3) concentration. When the separation was performed at Cu/ pyridine/HNO3=1/2.7/1, it showed maximum performance of separation (46.5% yield). These results imply that Cu ion (Cu1+) can be used as separating agent not only for alkene(one double bond) but also for diene(two double bonds). 한국화학공학회 C5혼합물에서 π-착합체 형성에 의한 이소프렌 화합물의 분리 Separation of Isoprene Compounds via π-Complexation in C5 Mixtures Article 2 Korean Chemical Engineering Research(HWAHAK KONGHAK), v.42, no.4, pp.420 - 425 Korean Chemical Engineering Research(HWAHAK KONGHAK) 42 4 420 425 kci ART001101591 Olefin/Paraffin Separation Cuprousion Liguid-Liguid Separation π-Complexation