Experimental isobaric (vapor + liquid) equilibrium data for the binary system N , N -dimethyl formamide + dimethyl sulfoxide and the quaternary system sec -butyl alcohol +  sec -butyl acetate +  N , N -dimethyl formamide + dimethyl sulfoxide at 101.3 kPa

Isobaric Vapor–Liquid Equilibrium Data at 101.3 kPa for the Binary System Acetamide + N,N-Dimethyl Formamide and the Quaternary System sec-Butyl Alcohol + sec-Butyl Acetate + Acetamide + N,N-Dimethyl Formamide

“…Since the values of the mass ratio of entrainers to the mixture of SBA (1) + SBAC (2) in the references are diverse from each other, the data in Figure were predicted using the binary interaction parameters in the references ,− and this work. Because the NRTL model performed better than the other ones in predicting the binary VLE data in most of the concerned references ,− ,, (Table S8, in the Supporting Information), it was chosen to predict the quaternary VLE data for different entrainers. For a mixed entrainer consisting of components i and j , the mass ratio of i to j is 1: 1.…”

“…Comparison of different entrainers for separation of SBA (1) and SBAC (2). Line with symbols, binary VLE data for SBA (1) + SBAC (2); colored lines, predicted data with the NRTL model and binary interaction parameters from references: DMAC + DMSO,; DMF + DMSO,; DMF + DMAC,; acetamide,; DMAC,; DMSO,; and DMF,.…”

“…Details and working principles of the still have been depicted in the previous work. 21,22 To ensure that the pressure (P/kPa) during the experiment was 101.3 kPa, a vacuum pump and a gas buffer system with a manometer were employed. The temperature (T/ K) was taken with a PT-100 connected to a digital temperature indicator (AMETEKDTI-1000).…”

“…A modified Othmer still was employed in the experiments to measure the isobaric VLE data, which is composed of a boiling chamber, a separation chamber, a condenser, a buffer chamber, a vapor-phase sampling port, and a liquid-phase sampling port. Details and working principles of the still have been depicted in the previous work. , To ensure that the pressure ( P /kPa) during the experiment was 101.3 kPa, a vacuum pump and a gas buffer system with a manometer were employed. The temperature ( T /K) was taken with a PT-100 connected to a digital temperature indicator (AMETEKDTI-1000).…”

“…Vapor−liquid equilibrium (VLE) data are the basis for the design and simulation of extractive distillation columns. The isobaric VLE data of the ternary systems SBA + SBAC + DMF, 17 SBA + SBAC + DMAC, 18 SBA + SBAC + DMSO, 19 and SBA + SBAC + acetamide 10 and the quaternary systems SBA + SBAC + DMF + DMAC, 20 SBA + SBAC + DMF + DMSO, 21 and SBA + SBAC + DMSO + DMAC 22 have been measured by our group. Because DMSO has a lower thermostability, 23 explosion hazard exists in long-term operation.…”