磺酸盐水溶液HLB值对其烷烃选择性的影响

EFFECT OF THE HLB VALUE OF SULFONATES SOLUTION ON ALKANE SELECTIVE BEHAVIOR

用自制的2种支链癸基苯磺酸盐作为表面活性剂,研究了磺酸盐结构、助剂脂肪醇类型及浓度对表面活性剂烷烃选择性,即最小烷烃碳数的影响。结果表明,磺酸盐苯环上烷基取代基增多、助剂脂肪醇碳链长度以及脂肪醇浓度的增加均会使磺酸盐水溶液的HLB值变小,即亲油性增强,最终使得最小烷烃碳数增加。

By using two kinds of branched-chain decylbenzene sulfonate synthesized in the laboratory, the effects of these factors, such as different structure of sulfonate, type and concentration of fatty alcohol as additive, on alkane selective behavior were studied. The results showed that the more the alkyl groups on the benzene ring of sulfonate and the longer the carbon chain length in fatty alcohol and the more concentration of fatty alcohol, the lower the HLB value of the sulfonate solution, which meant that the hydrophobicity of the sulfonate increased, eventually making the more minimum carbon number of alkane.