Preparation of novel emulsion gel adsorbents and designs and operations of adsorption process for heavy-metal ions

在工业化学中，节能、环保的强化金属分离技术是人们所希望的，因为它们可以用于从工业废水中分离出有价值的金属离子。研制了一种新型乳液凝胶吸附剂，即含有随机分布的油滴的有机萃取剂(油溶络合剂)的聚合物水凝胶，用于金属吸附。该乳液凝胶成功地吸附了水介质中的金属离子。采用沉淀聚合和双流体雾化相结合的生产方法，制备了直径约1 mm的单分散乳液凝胶小球。采用固定床法建立并设计了乳胶珠吸附溶液中金属离子的连续过程。

Enhanced metal separation techniques that are energy-saving and environment-friendly are desirable in industrial chemistry, as they can be used in applications to separate valuable metal ions from industrial effluents. Novel emulsion gel adsorbents, that is, polymeric hydrogels containing randomly distributed oil microdroplets of an organic extractant (an oil-soluble complexing agent), were developed for metal adsorption. The emulsion gels successfully adsorbed metal ions from aqueous media. Monodisperse emulsion gel beads, which were approximately 1 mm in diameter, were prepared using a production method combining sedimentation polymerization and two-fluid atomization. A continuous process for adsorption of metal ions from a solution onto emulsion gel beads using the fixed bed method was established and designed.