Solubility and Density Isotherms - Sodium Sulfate-Ethyl Alcohol-Water

Abstract

per square foot. At low flow rates, the 0.25-inch saddles resulted in about 10% higher nicotine extraction than 0.5-inch saddles, but at higher flow rates, extraction was practically the same with either size. Extraction was essentially constant over the range of 0.1 to 0.5% nicotine in water as the feed stock.Extraction was increased about twofold by tripling the ratio of kerosene to water. When high flow rates were used, extraction was increased about 16% by dispersing the kerosene rather than the water; at low flow rates, however, extraction was the same with either phase dispersed.The extraction capacity coefficient at 63 °C., based either on the water or kerosene phase, increased with increasing flow rates, but the coefficient based on the water phase was 3.5 times that based on the kerosene side-that is, kerosene offered the major resistance in this system. The coefficient based on the water phase increased uniformly with temperature, increasing sevenfold over the temperature range 21 °to 84°C ., whereas the coefficient based on the kerosene side remained constant over this temperature range.The height of the transfer unit varied with temperature, flow rate, and other operating conditions but covered the range of I. 1 to 6.9 feet when based on the water side, and from 2.8 to II. 4 feet when based on the kerosene side. ACKNOWLEDGMENTThanks are due C. 0. Willits and associates of this laboratory for analytical work, and W. Lamb, E. H. Harwood, and C. Sprinkle of the R. J. Reynolds Tobacco Company of Winston-Salem, N. C., for their generous cooperation in supplying information relative to the industrial extraction of nicotine from tobacco.

Isopropyl Alcohol-Sodium Sulfate-Water System. Liquid-Liquid Equilibria.

“…At temperatures of 40°C. and above, two liquid phases are formed, confirming the findings of Vener and Thompson (5).…”

“…Solubility data for the ternary system ethyl alcohol-sodium sulfate-water have been reported by Seidell (3) and have been extensively studied by Vener and Thompson (5). The latter authors studied the system at temperatures between 25°and 70°C.…”

Effect of Inorganic Salt Blending on the CO2 Separation Performance and Morphology of Pebax1657/Ionic Liquid Gel Membranes

“…To investigate the effect of the inorganic salt type, the molar ratio of the PEO segment in Pebax to the inorganic salt was fixed at 70:1, based on the interpolated solubility of Na 2 SO 4 in ethanol/water (70:30) mixture at 25 °C of 0.083 wt %. 20 The effect of the addition of CaCl 2 was investigated further by varying the concentration from 70:1 to 15:1. The composition summary of 100 g solutions of Pebax/inorganic salt blends is given in SI Table S1.…”

“…Pebax1657 pellets were added into the mixture to make up 3 wt % Pebax solution, and the mixture was stirred at 70 °C for 2 h under reflux. To investigate the effect of the inorganic salt type, the molar ratio of the PEO segment in Pebax to the inorganic salt was fixed at 70:1, based on the interpolated solubility of Na 2 SO 4 in ethanol/water (70:30) mixture at 25 °C of 0.083 wt % . The effect of the addition of CaCl 2 was investigated further by varying the concentration from 70:1 to 15:1.…”

On the mechanism of instability in a two-layer system with limited solubility of components

“…3, а) или изопропиловым (рис. 3, б) спиртом, полученные при фиксированной температуре [15,16]. Ниже кривой расположена область полной взаимной растворимости компонентов тройной смеси (области, обозначенные серым цветом на рис.…”