【摘要】 研究在硫酸铵存在下,3,5二溴水杨基荧光酮-乙醇体系萃取分离钨(Ⅵ)的行为。实验表明,作为萃取溶剂的乙醇,既能萃取电中性的螯合物,又能萃取带电荷的螯合物。在pH=1~6时,W(Ⅵ)均保持很高的萃取率。控制一定的酸度,可以实现W(Ⅵ)与Fe(Ⅲ)、Cu(Ⅱ)、Co(Ⅱ)、N i(Ⅱ)、Mn(Ⅱ)、Zn(Ⅱ)之间的分离。更多还原

【Abstract】 A study on liquid-liquid extraction of wolfram based on 3,5-dibromosalicylfluorone-ethanol in the presence of ammonium sulfate has been performed.The results showed that the extraction efficiency of W(Ⅵ) was high between pH=1~6.W(Ⅵ) can be separated completely from Fe(Ⅲ)、Cu(Ⅱ)、Co(Ⅱ)、Ni(Ⅱ)、Mn(Ⅱ) and Zn(Ⅱ) by controlling the solution acidity.更多还原