重烷基苯磺酸钠微乳体系及超低界面张力性质  

A Study on Microemulsion System and UltraLow Interfacial Tension Properties of Sodium Heavy Alkyl Benzene Sulfonate

作　　者：崔正刚[1] 孙静梅 张天林[1] 邹文华[1] 张德根 

机构地区：[1]无锡轻工大学化工系

出　　处：《无锡轻工大学学报（食品与生物技术）》1998年第2期50-55,共6页Journal of Wuxi University of Light Industry

摘　　要：用发烟硫酸磺化烷基苯厂的副产物重烷基苯，得到了平均摩尔质量４０６的重烷基苯磺酸钠，其ｃｍｃ和γｃｍｃ分别为５．５０×１０－５ｍｏｌ／Ｌ和３１．５０ｍＮ／ｍ．以Ｗ（仲丁醇）Ｗ（ＨＡＢＳ）＝３１，Ｗ（油）Ｗ（盐水）＝１１配制ＨＡＢＳ－仲丁醇－正辛烷－盐水微乳体系，在较宽的盐度范围内可以得到中相微乳液，最佳盐度为１．６％ＮａＣｌ，最佳配方时油／水界面张力可达１０－３～１０－４ｍＮ／ｍ数量级。在无醇条件下，无论是使用提纯ＨＡＢＳ或未提纯ＨＡＢＳ单体，经过适当的配方，０．２％ＨＡＢＳ可使大庆原油／水界面张力降至１０－２～１０－３ｍＮ／ｍ数量级。来源方便、价格低廉的ＨＡＢＳ可望成为适合大庆油田的三次采油用表面活性剂。Sodium heavy alkyl benzene sulfonate(HABS) is synthesized by sulfonating with oleum heavy alkyl benzene, a byproduct from Nanjin Alkyl Benzene Plant. the equivalent weight, cmc and γcmcof the HABS are 406, 5.5×10-5mol/L and 31.5(mN/m), respectively. In a wide NaCl concentration range, middle phase microemulsion can be obtained in HABSsecbutanoloctanebrine system with WOR=1(v/v), secbutanol/ HABS =3/1(w/w).The optimum salinity of the system is 1.6% of NaCl which seems to be independent of concentration of HABS, and the oil/water interfacial tension at the optimum state can be as low as 10-3 mN/m. In the absence of alcohol but the presence of some alkalies, the Daqin crude oil/water interfacial tension can be reduced to 10-2￣10-3 mN/m at a HABS concentration of 0.2wt.%(about 5×10-3 mol/L), whether the HABS is purified or not. The HABS, which can be conveniently obtained and inexpensive, would be an important and effective surfactant for the tertiary recovery of Daqin crude oil. 

关 键 词：重烷基苯磺酸钠 微乳液 超低界面张力 三次采油 

分 类 号：O625.751[理学—有机化学] TE357[理学—化学]