奇数碳烷基间二甲苯磺酸钠在大庆油砂上的吸附

 摘要：考察了11种结构明确的奇数碳烷基间二甲苯磺酸钠(mCn-hS)在大庆油砂上的吸附，探讨了mCn-hS的初始质量浓度、分子结构、分子中烷基链长度及助剂对其吸附量的影响。结果表明，随着mCn-hS初始质量浓度的增大，其在大庆油砂上的吸附量先增大至饱和，后略有降低；烷基链长度相同的mCn-hS，随着其中芳基位置向烷基链中间位置移动，其在大庆油砂上的吸附量降低；NaCl和NaOH的加入使mCn-hS在大庆油砂上的吸附量增大，而异戊醇的加入使其降低；加入助剂后，随着mCn-hS分子中烷基链长度的增加，mCn-hS在大庆油砂上的吸附量减小。

ADSORPTION OF SODIUM ALKYL m-XYLENE-ARYL SULFONATES WITH ODD-NUMBERED ALKYLS ON DAQING OIL SANDS

Abstract: The adsorption properties of eleven isomers of sodium alkyl m-xylene-aryl sulfonates with odd-numbered alkyls (mCn-hS) on Daqing oil sands were measured, and the effects of initial mass concentration, molecular structures, the length of carbonic chain of mCn-hS and accessory chemicals on the adsorption capacity of mCn-hS in Daqing oil sands were discussed. The experimental data showed that with the increase of mCn-hS initial mass concentration the absorption amount first increased and slightly decreased after reaching its saturation value. With the aromatic ring in mCn-hS molecule shifting from the terminal to the center of the long carbonic chain, the absorption capacity of mCn-hS in Daqing oil sands decreased. With the increase of NaCl and NaOH mass concentrations the absorption capacity of mCn-hS in Daqing oil sands increased, while decreased with the addition of isoamyl alcohol. Under the addion of accessory chemicals, the absorption capacity of mCn-hS in Daqing oil sands decreased with the increase of the carbonic chain length in mCn-hS molecule.