相对分子质量对烷基芳基磺酸盐复配体系固液吸附性能的影响  

Effect of Relative Molecular Mass on the Adsorption of Alkyl Aryl Sulfonate Composite Systems at the Solid-Liquid Interface

作　　者：丁伟[1] 任娅妮[1] 刘宏彬[1] 史鹏[1] 于涛[1] 曲广淼[1] 程杰成[2] 吴军政[2] 

机构地区：[1]东北石油大学化学化工学院,石油与天然气化工省重点实验室,大庆163318 [2]大庆油田有限责任公司科技发展部,大庆

出　　处：《应用化学》2011年第8期963-968,共6页Chinese Journal of Applied Chemistry

基　　金：国家重点基础研究发展规划“九七三”资助项目(2005cb221300)

摘　　要：测定了5种平均相对分子质量和相对分子质量(以下简称分子量)分布不同的烷基芳基磺酸盐复配体系的吸附等温线,分别考察了分子量、分子量分布、温度和无机盐对复配体系在油砂/石英砂表面的吸附量的影响。结果表明,对5种分子量分布复配体系吸附量依次降低的顺序为递增分布、正态分布、反正态分布、递减分布和均匀分布;复配体系在油砂表面的吸附量随着磺酸盐的平均分子量的增大而增大,随温度的升高而降低,随NaC l浓度的增加而增加。另外,在低浓度时,MgC l2、CaC l2和Na2SO4比NaC l对吸附的影响显著。NaC l对复配体系在油砂表面的吸附影响比对石英砂表面吸附的影响略大。The isotherms and the adsorption amount of alkyl aryl sulfonates with five types of relative molecular mass（ Mr ） distribution were measured on the solid-liquid interface. The impacts of Mr, Mr distribution, adsorption temperature, and the inorganic salt on the adsorption of alkyl aryl sulfonate compounds on the oil sand/quartz sand surface were discussed, respectively. The results showed that the adsorption amount of the five types of alkyl aryl sulfonate compounds were decreased in the following order： the incremental distribution, normal distribution, reverse normal distribution, descending distribution, uniform distribution; while the adsorption amount of alkyl aryl sulfonate compounds on the oil sands surface increased with the increase of their Mr and the NaCl concentration, and decreased with the increase of the adsorption temperature. The effect of NaCl on the adsorption of the alkyl aryl sulfonate compounds on the oil sands surface was slightly greater than that on the quartz sands surface. . Moreover, it was found that CaCl2, MgCl2, Na2SO4 etc. have a more significant effect on the adsorption amount than NaCl.

关 键 词：烷基芳基磺酸盐 复配体系 固液吸附 油砂 石英砂 无机盐 

分 类 号：O647.3[理学—物理化学] TQ247.51[理学—化学]