【摘要】 提出了用动态法研究水溶液中固-液界面吸附的装置。在采用此装置的吸附研究中,吸附剂用量可降低为常规静态法的几十分之一,不需取样和固液分离,可连续测定二种吸附质的共吸附过程。本文以十二烷基苯磺酸钠在高岭土上的吸附为例,在该装置上研究了不同条件下的吸附,并与静态吸附实验结果作了比较。本文的工作为评价吸附对表面活性剂驱油体系的影响以及开展吸附动力学的研究创造了条件。更多还原

【Abstract】 A specific apparatus for studying dynamical adsorption from aqueous solutions is devised. It permits to determine continuously the co-operative adsorption process ot two adsorbates co- existed in aqueous solutions.The amount of adsorbent needed to run an experiment is lesse- ned to about 50 mg,the concentration of solution studied—to 10^-5 mol/l.It is not necessary to separate the solid adsorbent form the supernatant liquid.The adsorption-desorption pro- cesses on kaolinite of sodium dodecyl bezene sulfonate (SDDBS,solution concentration 5×10^-5 mol/l) and of alcohol-SDDBS from aqueous solutions are investigated extensively on the a- pparatus.In the later case the isotherm of total adsorption of the alcohol-SDDBS mixture and the individual isotherms of adsorptioh of each adsorbate are obtained.The results of the dynamical adsorption experiments are in accordance with that in literature.更多还原