摘要
研究了4种十五烷基间二甲苯磺酸盐降低水体系/正构烷烃的界面张力。分别考察了磺酸盐烷基链支化程度、NaCl以及异戊醇浓度对界面张力的影响。结果表明,磺酸盐支化程度越大,其最小烷烃碳数(nmin)越大,最低界面张力值越小;NaCl浓度对支化程度大的磺酸盐的影响显著;在加入2%异戊醇条件下4种磺酸盐的最佳盐度均降低,且其对应的最低界面张力均亦变小;异戊醇的加入使十五烷基间二甲苯磺酸盐(C15-6S、C15-4S、C15-2S)对油水界面张力显著降低。
The interfacial tension of 4 pentadecyl m-xylene sodium sulfonates are synthesized in laboratory.The effects of internal factors like the degree of branching of the fatty chain and the external factors such as the concentration of NaCl and alcohol on the interfacial tension are investigated.The results show that if the branch-degree increases,the minimum number of alkane carbon nmin increases while the minimum value of interfacial tension decreases.The optimal salinity of the 4 sodium sulfonates and the lowest interfacial tensions will both decrease under the concentration of the 2% iso-amyl alcohol.The concentration of the iso-amyl alcohol has a great influence on the sulfonate solution of the pentadecyl m-xylene sodium sulfonates(C15-6 S,C15-4 S,C15-2 S).
出处
《西南石油大学学报（自然科学版）》
CAS
CSCD
北大核心
2010年第5期137-140,共4页
Journal of Southwest Petroleum University(Science & Technology Edition)
基金
国家重点基础研究规划"973"项目(2005CB221300)
关键词
烷基芳基磺酸盐
界面张力
最小烷烃碳数
影响因素
alkyl aryl sulfonate
interfacial tension
the minimum alkane carbon number
influencing factors
