Industrial & Engineering Chemistry Research, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 16, 2025
The primary objective of this research is to enhance a novel method for the eco-friendly production trimethyl borate (TMB) from ulexite ore by utilizing carbon dioxide. Notably, CO2, major greenhouse gas, converted into thermodynamically stable CaCO3 following TMB synthesis. TMB, significant organo-boron chemical, has wide range industrial applications. In study, process consists three main steps: reaction, distillation, and pervaporation. Trimethyl was synthesized through reaction with methanol in high-pressure reactor under CO2 atmosphere. obtained liquid product subjected distillation produce TMB–methanol azeotrope. Following process, separation azeotrope mixture achieved pure were characterized confirmed using Fourier transform infrared (FTIR) spectroscopy gas chromatography (GC). research, hydroxyethyl cellulose (HEC) polyvinylpyrrolidone (PVP) used as membrane materials. Blend membranes prepared solution casting evaporation method. morphologies FTIR spectroscopy, thermogravimetric analysis (TGA), X-ray diffraction (XRD), scanning electron microscopy (SEM), contact angle assessment. pervaporation performance all blend evaluated effects operating temperature, feed concentration, PVP ratios on investigated. results demonstrated that purity 97.71 wt % when PVP–HEC-2 utilized conclusion, study introduces an innovative environmentally friendly producing valuable chemicals, highlighting its potential
Language: Английский