Nanofiltration properties of PTMSP in binary organic solvents mixtures

International Workshop on Physical and Chemical Processes in Atomic Systems

Yushkin, A.A.^1 ; Kossov, A.A.^1 ; Volkov, V.V.^1,2

A.V.Topchiev Institute of Petrochemical Synthesis RAS, Moscow, Russia^1

National Research Nuclear University MEPhI, Moscow Engineering Physics Institute, Kashirskoe highway 31, Moscow

115409, Russia^2

关键词: Ethanol solutions;    Membrane permeability;    Nanofiltration performance;    Olefin concentration;    Remazol Brilliant Blue R;    Solution viscosity;    Swelling degree;    Trimethylsilyl;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/751/1/012044/pdf
DOI  :  10.1088/1742-6596/751/1/012044

来源: IOP

【 摘 要 】

In this study, the stability and nanofiltration performance of poly[1-(trimethylsilyl)- 1-propyne] (PTMSP) in ethanol solutions of butylaldehyde, 1-decanal, 1-hexene, 1-decene was evaluated. It was found that PTMSP was insoluble in all aldehyde solutions, but it was soluble at olefin concentration of 80% or higher. Nanofiltration experiments demonstrate that binary mixtures of 1-decanal and ethanol viscosity are not the parameter affecting on membrane permeability and rejection of solute as well as swelling degree. In the case of decanol/ethanol solutions both solution viscosity and molar volume demonstrate the best fit of experimental data. It was shown that with the decrease of ethanol content in the feed, the rejection of anionic solute Remazol Brilliant Blue R (MW 626) increases from 94 up to 97%.