腐殖酸钾对十二烷基苯磺酸钠(SDBS)增溶作用

The Solubilization of Humic Kalium to Sodium Dodecylbenzene Sulfonate(SDBS)

以苯为石油类物质代表,比较研究了单一的腐殖酸钾、SDBS以及二者的混合溶液对苯的增溶作用。用紫外分光光度法测定了各溶液对苯的增溶能力。研究了腐殖酸钾的质量浓度、矿化度、pH值以及温度等因素对单一或混合表面活性剂溶液对苯的增溶能力的影响。结果表明,苯增溶量随着腐殖酸钾浓度的增大产生突越,并渐渐趋于平衡;适量的无机阳离子电解质能够增大单一或混合表面活性剂的增溶能力;腐殖酸钾溶液的增溶体系在pH>7.0时基本不受的pH变化影响;体系的温度越高增溶量越大。

The puduce and apply of humic kalium was described. The mechanisms and effect factors were reviewed. Application of humic kalium or mixed-surfactant in water solubility enhancement was also described. In the present work, the dissolution behavior of benzene as an example of petroleum material was investigated. Solubility enhancement of benzene in micellar solutions of single humic kalium, SDBS and mixed-surfactant were studied. To evaluate the ability of water solubitity of benzene, the UV-VIS absorbance spectra were measured. Effects of the concentration of humic kalium, ionic strength, pH and temperature on water solubilities of benzene in the presence of humic kalium and mixed surfactants were investigated. The water solubity of benzene linearly increared with the concentration of humic kalium and achieved a constant value. The water solubility of benzene was increased by increased temperature but not with pH.