SORPTION AND DESORPTION OF RHENIUM IONS BY LIGNIN SORBENTS
作者: Nazira Chopabayeva
刊名: Journal of Chemical Technology and Metallurgy, 2019, Vol.54 (3)
来源数据库: University of Chemical Technology and Metallurgy
关键词: Lignin ion-exchangerRhenium ionsSorptionDesorptionRegeneration
原始语种摘要: The present research focuses on the sorption, the kinetics and the regeneration properties of macroporous lignin ion-exchangers toward rhenium ions depending on the nature and the concentration of the functional groups of the ion-exchangers and the eluents, the metal ions and the acid concentration in the solution, the duration of the sorption and desorption processes and the number of the feasible sorption/desorption cycles. The optimum conditions of perrhenate ions sorption and desorption are established. It is found that among all of the used eluents viz., H2SO4 of a different concentration, 10 % NH4OH, 1N NaOH, and 1N H3PO4, the solution of 2N H2SO4 is the most effective eluent for extracting the trapped metal ions from lignin ion-exchangers. It is found that the ion-exchanger...
全文获取路径: PDF下载  UCTM  (合作)
分享到:

×
关键词翻译
关键词翻译
  • sorption 吸着
  • solution 溶液
  • removal 消去
  • kinetics 动力学
  • suitable 合适的
  • adsorbent 吸附剂
  • concentration 浓度
  • effective 有效的
  • exchanger 交换器
  • sulfate 硫酸盐