Study of liquid-liquid extraction of perrhenate with cyclohexanone in different media.
A study has been made of the extraction of ReO(4)(-) from the following media: nitric, hydrochloric, sulphuric and phosphoric acids, and sodium nitrate, chloride, sulphate, carbonate and hydroxide solutions. The extraction curves were obtained and hydration and solvation numbers determined. It is concluded that in acidic medium the extraction follows a hydratosolvate mechanism; in neutral and alkaline medium only a solvate mechanism is observed. Similar investigations were carried out with molybdenum(VI). The separation of rhenium and molybdenum is discussed.
Jordanov
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N
Institute of General and Inorganic Chemistry, Bulgarian Academy of Sciences, Sofia 13, Bulgaria.
Pavlova
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M
Bojkova
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D