Extraction of Vanadium from Vanadium-Containing APV-Precipitated Wastewater by W/O Microemulsion System

  • Yun Guo
  • Hong-Yi LiEmail author
  • Min-Min Lin
  • Bing Xie
Conference paper
Part of the The Minerals, Metals & Materials Series book series (MMMS)


The extraction of vanadium from vanadium-containing APV-precipitated wastewater by W/O microemulsion system was studied. In the N263/n-heptane/isoamyl alcohol/NaCl microemulsion system, N263 played double functions of cationic surfactant and extractant to form microemulsion in n-heptane, and isoamyl alcohol was added in the microemulsion as a cosurfactant. The extraction of vanadium by W/O microemulsion systems effectively accelerated the extraction and improved the extractatability because of the enormous increase in the micro-interfacial surface area. Due to ion association with extractant, vanadium was extracted into the microemulsion phase. The influence of different parameters on the extraction ratio (E%) were investigated, including the volume ratio of aqueous phase to microemulsion, surfactant concentration, pH value of the feed solutions, cosurfactant concentration, extraction time as well as temperature. In optimum conditions, the extraction ratio (E%) can reach 97.2%.


Microemulsion Extraction N263 Vanadium 



The authors would like to acknowledge the financial supports by National Natural Science Foundation of China (No. 51474041 and No. 51674051), National Key Technology Research and Development Program of China (2015BAB19B02) and Fundamental Research Funds for the Central Universities of China (No. 106112015CDJZR465505).


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Copyright information

© The Minerals, Metals & Materials Society 2018

Authors and Affiliations

  1. 1.College of Materials Science and EngineeringChongqing UniversityChongqingChina

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