【摘 要】
：
Ionic liquids(ILs)have been regarded as the potential novel solvents for improved analytical-and process-scale separation methods.The development of methods for
【机 构】
：
State Key Laboratory of Heavy Oil Processing,School of Chemical Engineering
【基金项目】
：
the Program for New Century Excellent Talents in U;国家自然科学基金
论文部分内容阅读
Ionic liquids(ILs)have been regarded as the potential novel solvents for improved analytical-and process-scale separation methods.The development of methods for the recovery of ILs from aqueous solutions to escape contamination and recycle samples will ultimately govern the viability of ILs in the future industrial applications.Therefore,in this paper a new method for separation of ILs from their dilute aqueous solutions and simultaneously purification of water was proposed on the basis of the CO_2 hydrate formation.For illustration,the dilute aqueous solutions with concentrations of ILs ranging from 2×10~(-3) mol% to 2×10~(-1) mol% were concentrated.The results show that the separation efficiency is very impressive and that the new method is applicable to aqueous solutions of both hydrophobic and hydrophilic ILs.Compared to the literature separation method based on the supercritical CO_2,the new method is applicable to lower concentrations,and more importantly,its operation condition is mild.
其他文献
Hydroxyl radicals HO are generated under Fenton-like (Fe2++H2O2→HO-+OH-+Fe3+) catalytic conditions upon microwave irradiation. Liquid-phase direct catalytic ox
As the number and geometric intensity of visual satellites are susceptible to large slopes in open-pit mines, we propose integration of GPS/Pseudolites (PLs) po
通过对隔水层土样实验,获得了离石黄土和三趾马红土的应力应变全程曲线、渗透系数和膨胀率.基于考虑黏土应力应变全程相似和水理性相似的固液耦合相似模拟,揭示了浅埋煤层长
Let M be a closed n-manifold of positive sectional curvature.Assume that M admits an effective isometrical T~1 × Z_p~k-action with p prime.The main result of t
Differential proteins expressing in ectopic and eutopic endometria were investigated by means of proteomic analysis.Five patients in secretary phase were diagno
Let D_n be the generalized unit disk of degree n. In this paper, Riemannian metrics on the Siegel-Jacobi disk D_n× C~(m,n) which are invariant under the natura
An improved phase averaging method based on cross-correlation of the instantaneous velocity field determined by TR-PIV measurements is proposed in this article.
Six new polyesters 7a-f were synthesized through the solution polycondensation reaction of diacid chloride 5 with six aromatic diols 6a-f in N,N-dimethyl acetam
Reaction of bis(4,6-dimethyl-2-pyrimidinethiolato)methane(bpytm)with CuCl_2·4H_2O in a mixed methanol/dichloromethane solution gave a one-dimensional coordina-
Treatment of resorcin[4]arene tetracarboxylic acid 1 with triethylamine in the presence of Co(CH_3COO)_2·4H_2O and 4,4-bipyridine gave a co-crystallization 1~(