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首页> 美国政府科技报告 >Surfactant and Cosurfactant Properties of Mixed and Polysulfonated Surfactant by Phase Volume Measurements: Topical Report
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Surfactant and Cosurfactant Properties of Mixed and Polysulfonated Surfactant by Phase Volume Measurements: Topical Report

机译：混合和多磺化表面活性剂的表面活性剂和辅助表面活性剂的相体积测量：局部报告

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This report covers work performed over a 3-year period with the goal of characterizing the oil-solubilizing properties of alkylaryl compounds with two or more sulfonate groups in the molecule. One material studied was a petroleum fraction, containing a large portion of diphenylalkanes, that had been oversulfonated. The other was an alkyldiphenyl ether sulfonate. Several monosulfonates were studied for comparison: a petroleum sulfonate (TRS 10-410), technical grades of sodium pentadecylbenzenesulfonate and sodium dodecylbenzenesulfonates; and two isometrically pure materials, sodium n-octylbenzenesulfonate and a branched-chain sodium tetradecylbenzenesulfonate ('Texas No. 2'). The experimental technique was measurement of phase volumes of surfactant-oil systems in alkane and salinity scans. All oils were pure or mixed alkanes from hexane to dodecane. Each surfactant system was characterized by its values of the parameters in the Salager correlation (1), along with the solubilization parameter and width of the 3-phase region. The results are reported in terms of how these parameters varied with polysulfonation, equivalent weight, mixing of surfactants, and calcium in the brine. A limited study was made of alcohol and sulfonate partitioning and their effect on interpretation of the data. It was found that many of the properties of polysulfonates are a consequence of their low equivalent weight. However, disulfonates are more water soluble, and act more like alcohols, than do monosulfonates of similar equivalent weight. They have less solubilizing power at the same hydrophilic-lyophilic balance, and they decrease the effect of calcium on the behavior. 24 refs., 50 figs., 21 tabs. (ERA citation 13:000207)

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