5-磺基水杨酸的吸附研究

Study on adsorption of 5-sulfosalicylic acid

用丙烯酸系树脂XAD-7和超高交联树脂NDA-150对5-磺基水杨酸进行了吸附研究。结果表明,在无甲醇的水溶液中,超高交联树脂NDA-150对5-磺基水杨酸有明显的吸附优势,其吸附量大于丙烯酸系树脂XAD-7;在有甲醇存在的溶液中,超高交联树脂NDA-150的吸附能力明显下降,而丙烯酸系树脂XAD-7的吸附能力却几乎不受甲醇的影响。范德华力是超高交联树脂NDA-150在吸附过程中的主要作用力,而氢键是丙烯酸系树脂XAD-7在吸附过程中的主要作用力。

The adsorption research of 5 - Sulfosalicylic acid is carried out by acrylic ester resins XAD- 7 and highly crosslinked resins NDA- 150. The results show that the adsorption capacity of highly cross-linked resins NDA- 150 is superior to that of acrylic ester resins XAD- 7 in the solution without methanol. But in the solution with methanol, the adsorption capacity of NDA -150 decreases obviously, while methanol has little effect on adsorption capacity of XDA - 7. One reason to explain the phenomena is that the Van der waals force is main working force in adsorption of resins NDA- 150, and hydrogen bonding is main working force in adsorption of XAD - 7.