MD-1膜驱剂在石英砂和蒙脱土颗粒上吸附的光谱学表征  

Spectrographic Characterization of the Adsorption of MDFF Agent MD-1 from Solution on Montmorillonite and Quartz

作　　者：高芒来[1] 陈素青[1] 王建设[1] 梁晓霏[1] 

机构地区：[1]石油大学(北京)化工学院,石油大学重质油国家重点实验室,北京102249

出　　处：《油田化学》2004年第1期68-71,共4页Oilfield Chemistry

基　　金：中国石油天然气股份公司导向试验基金(B9802);重质油国家重点实验室开放课题(2003 01)。

摘　　要：采用FT IR和XRD方法,与阳离子表面活性剂CTAB对比,研究了MD 1膜驱剂(一种单分子双季铵盐)在石英和蒙脱石表面的吸附。给出了吸附前后两种矿物的FT IR和XRD谱图,分析指认了各红外特征吸收峰,由X射线衍射峰强度计算了晶层间距d(100)。在石英上CTAB有微量吸附,而IR检测不出MD 1的吸附,CTAB和MD 1基本上不引起石英d(100)的改变。在蒙脱石上MD 1只发生单层吸附,其吸附量较CTAB小,MD 1的吸附使蒙脱石吸附水减少,d(100)从1.545nm减小至1.399nm,CTAB的吸附也使蒙脱石的吸附水减少,但使d(100)增大到1.952nm。因此,MD 1抑制粘土膨胀的能力比CTAB强。图6表1参7。The adsorption of molecular deposition filming/flooding (MDFF) agent MD-1 (an organic diammonium salt) from aqueous solution on montmorillonite (M) and quartz (Q) is studied by FT-IR and XRD in comparison with cetyltrimethylammonium bromide (CTAB). The FT-IR and XRD spectra for M and Q with and without MD-1 or CTAB adsorbed are presented, the characteristic IR absorption peaks are designated and the lattice spacing d(100) are determined from the X-ray diffraction intensity data. On Q CTAB adsorbs in small quantity and MD-1 adsorption can not be detected by FT-IR; MD-1 and CTAB practically do not change the d(100) value of Q. On M MD-1 forms adsorbed monolayer and its adsorption is smaller than that of CTAB. Adsorption of MD-1 leads to reduction of adsorbed water on M and decrease in d(100) of M from 1.545 nm to 1.399 nm; adsorption of CTAB reduces adsorbed water on M, too, but increases d(100) to 1.952 nm. Therefor the antiswelling capacity of MD-1 is higher than that of CTAB.

关 键 词：MD-1膜驱剂 石英砂 蒙脱土 光谱学 表征 十六烷基三甲基溴化铵 红外光谱 

分 类 号：TE357.46[石油与天然气工程—油气田开发工程] TE39