Separation of Zn(II) from Zn-Ni-Co sulphate solution by di-(2-ethylhexyl)phosphoric acid (D2EHPA) using a slug flow microreactor
作者: Wenbin XieLibo ZhangJianyu YangLihua ZhangShaohua JuYaoyao Luo
作者单位: 1State Key Laboratory of Complex Nonferrous Metal Resources Clean Utilization, Kunming University of Science and Technology, Kunming, Yunnan, 650093, China
2Key Laboratory of Unconventional Metallurgy, Ministry of Education, Kunming, Yunnan, 650093, China
3Mineral Resources Department, Yunnan Tin Company Group Limited, Kunming, Yunnan, 650200, China
4Faculty of Metallurgical and Energy Engineering, Kunming University of Science and Technology, Kunming, Yunnan, 650093, China
刊名: Chemical Engineering and Processing - Process Intensification, 2019, Vol.143
来源数据库: Elsevier Journal
DOI: 10.1016/j.cep.2019.107562
关键词: Slug flowCapillary microreactorMicro-extractionMass transfer
原始语种摘要: Abstract(#br)Separation of Zn 2+ from sulphate solution containing Ni 2+ and Co 2+ using di-(2-ethylhexyl)phosphoric acid (D2EHPA) has been carried out in capillary microreactors. Well-defined slug flows are formed at total flow rates of 0.1–4 mL/min, and the slugs size and specific interfacial area are determined. The effects of saponification degree of D2EHPA, extractant concentration, and residence time on extraction and separation of these three metal ions are investigated. Meanwhile, conventional batch experiments at 94 s and equilibrium experiments at 8 h are also done in parallel at different extractant concentrations. Compared with conventional batch experiments, better extraction and separation performance, e.g. 2.7–38.9 times higher of β Zn/Ni and 3.9–34.9 times higher of β...
全文获取路径: Elsevier  (合作)

  • microreactor 微反应器
  • II Interactive Interface
  • solution 溶液
  • settler 沉淀箱
  • higher 
  • concentrations 浓聚物
  • batch 一批
  • phosphoric 含磷的
  • extraction 提取
  • values 价值观