萃取流程对DNNSA反胶团萃取镁效率的影响综合实验

发布时间：2018-05-10 06:22

本文选题：化工工艺 + 综合实验　；参考：《实验技术与管理》2017年06期

【摘要】：基于环保背景和柔和"资源再生,循环经济"的理念,设计了化工工艺综合实验——萃取流程对二壬基萘磺酸(DNNSA)反胶团萃取镁效率的影响。以DNNSA为萃取剂、磺化煤油为稀释剂组成的反胶团有机相,以冶金废水为含镁原料,首先测定冶金废水中镁离子含量,通过DNNSA对废水中镁萃取后测定萃余液镁离子含量,由萃取前后镁离子浓度计算得到萃取率。考察了单级萃取、多级错流萃取、多级逆流萃取、连续接触逆流萃取等工艺流程对萃取镁效率的影响。该实验具有较好的设计性,拓展了学生的工程应用视野,培养了学生探索问题、发现问题、研究问题和解决问题的能力。可作为应用技术型本科院校化工专业的综合性实验。
[Abstract]:Based on the background of environmental protection and the concept of "Resource Regeneration, Circular economy", the effect of chemical process comprehensive experiment-extraction process on magnesium extraction efficiency by DNNSA-DNSA-DNSA-DNSA-dinonylnaphthalenesulfonate reverse micelles was designed. Using DNNSA as extractant, sulfonated kerosene as diluent, and metallurgical wastewater as magnesium-containing raw material, the content of magnesium ion in metallurgical wastewater was first determined, and the content of magnesium ion in waste water was determined by DNNSA after extraction. The extraction rate was calculated by magnesium ion concentration before and after extraction. The effects of single-stage extraction, multi-stage cross-current extraction, multi-stage countercurrent extraction and continuous contact countercurrent extraction on the extraction efficiency of magnesium were investigated. The experiment has good design, broadens the students' application field of engineering, and cultivates the students' ability to explore, discover, study and solve problems. It can be used as a comprehensive experiment of chemical engineering major in applied technology colleges.
【作者单位】：重庆三峡学院环境与化学工程学院;
【基金】：重庆市高等教育教学改革研究项目(133014) 重庆三峡学院教改项目(JG150707,SD150114)
【分类号】：G642.423;TQ028.32-4

【相似文献】