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1.前言 在铀水冶碱法工艺中腐植酸和富里酸是造成萃取乳化的主要杂质。为了观察和解决腐植酸、富里酸在铀水冶工艺中的影响,需要建立腐植酸和富里酸的分别测定方法。本文在前人工作的基础上,用酸化沉淀法分离腐植酸,用GDX-104树脂吸附分离富里酸,然后用751G型分光光度计在紫外光区分别测腐植酸、富里酸的吸光度,结果比较满意,实验证明本法适用于铀水冶试液中腐植酸、富里酸的分别测定。
1. Introduction The humic acid and fulvic acid are the main impurities that cause the extraction and emulsification in the process of uranium water and alkali treatment. In order to observe and solve the influence of humic acid and fulvic acid in uranium hydrometallurgical process, separate determination methods of humic acid and fulvic acid need to be established. Based on the previous work, humic acid was separated by acid precipitation, the fulvic acid was adsorbed and separated by GDX-104 resin, and then the absorbance of humic acid and fulvic acid was measured by UV spectrophotometer using 751G spectrophotometer. Satisfied with the experimental results show that this method is suitable for determination of humic acid and fulvic acid in uranium water metallurgy test solution.