METHOD OF TREATING SELENO SULFATE SOLUTION

To provide a method of treating a seleno sulfate solution that selectively reduces tellurium oxonium ions in a seleno sulfate solution to separate tellurium from the seleno sulfate solution.SOLUTION: A method of treating a seleno sulfate solution includes the step of adding an oxalic acid to a selen...

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Bibliographische Detailangaben
1. Verfasser:	MANABE MANABU
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY COMPOUNDS THEREOF FERROUS OR NON-FERROUS ALLOYS INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TREATMENT OF ALLOYS OR NON-FERROUS METALS TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	To provide a method of treating a seleno sulfate solution that selectively reduces tellurium oxonium ions in a seleno sulfate solution to separate tellurium from the seleno sulfate solution.SOLUTION: A method of treating a seleno sulfate solution includes the step of adding an oxalic acid to a seleno sulfate solution containing tellurium oxonium ions with its pH controlled to 10 or more, to precipitate tellurium.SELECTED DRAWING: None 【課題】セレノ硫酸溶液中のテルルオキソニウムイオンを選択的に還元することで、セレノ硫酸溶液からテルルを分離することができるセレノ硫酸溶液の処理方法を提供する。【解決手段】セレノ硫酸溶液の処理方法は、ｐＨ１０以上に調整した、テルルオキソニウムイオンを含むセレノ硫酸溶液に、シュウ酸類を添加してテルルを沈殿させる工程を有する。【選択図】なし