SCANDIUM AND/OR LANTHANOID EXTRACTION METHOD

PROBLEM TO BE SOLVED: To provide an efficient method of extracting scandium and lanthanoid usable in the mineral and industrial fields.SOLUTION: An acidic aqueous solution containing scandium and/or lanthanoid is brought into contact with an organic solvent in the presence of nitrilotriacetic acid t...

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Bibliographische Detailangaben
Hauptverfasser:	SUZUKI HIDEYA, YOSHIDA TAKAMASA, KUNII SHIGERU, MATSUMURA TATSURO
Format:	Patent
Sprache:	eng ; jpn
Schlagworte:	CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS FERROUS OR NON-FERROUS ALLOYS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS METALLURGY PRETREATMENT OF RAW MATERIALS PRODUCTION AND REFINING OF METALS TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE TREATMENT OF ALLOYS OR NON-FERROUS METALS
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an efficient method of extracting scandium and lanthanoid usable in the mineral and industrial fields.SOLUTION: An acidic aqueous solution containing scandium and/or lanthanoid is brought into contact with an organic solvent in the presence of nitrilotriacetic acid triamide represented by the general formula (A) in the figure, so that the scandium and/or lanthanoid can be dissolved in the organic solvent and efficiently extracted. (In the formula (A), each R independently represents a C1-20 hydrocarbon group or hydrogen atom.)SELECTED DRAWING: Figure 1 【課題】鉱工業分野で利用できるスカンジウムやランタノイドの効率的な抽出方法を提供することを目的とする。【解決手段】スカンジウム及び／又はランタノイドを含む酸性水溶液を、下記一般式（Ａ）で表されるニトリロ三酢酸トリアミドの存在下で有機溶媒に接触させることにより、スカンジウム及び／又はランタノイドを有機溶媒に溶解させて、効率良く抽出することができる。（式（Ａ）中、Ｒはそれぞれ独立して炭素数１〜２０の炭化水素基又は水素原子を表す。）【選択図】図１