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Study of Reactivity of 4-Halogenoanilines with Metals and Metallic Alloys in Alkaline Aqueous Solution at Room Temperature
Authors: Weidlich Tomáš | Krejčová Anna | Prokeš Lubomír
Year: 2009
Type of publication: článek v odborném periodiku
Name of source: Scientific Papers of the University of Pardubice, Series A, Faculty of Chemical Technology
Publisher name: Univerzita Pardubice
Place: Pardubice
Page from-to: 129-136
Titles:
Language Name Abstract Keywords
cze Studie reaktivity halogenovaných anilinů s kovy a kovovými slitinami v alkalickém vodném prostředí za laboratorní teploty Článek popisuje jednoduchou metodu pro dehalogenaci 4-halogenanilinů v pufrovaných vodných roztocích s použitím redukce působením kovových slitin v alkalickém prostředí za laboratorní teploty. Jako redukční činidla byly otestovány práškový hliník a zinek a práškové slitiny Al-Fe, Al-Ni, Cu-Sn, Cu-Zn a Al-Cu-Zn. dehalogenace;halogenované aniliny;chloranilin;AOX;ICP-OES;kapalné membrány;odpadní vody
eng Study of Reactivity of 4-Halogenoanilines with Metals and Metallic Alloys in Alkaline Aqueous Solution at Room Temperature This article describes a new simple method for dehalogenation of 4-halogenoanilines in buffered aqueous solution using a reduction technique based on the treatment with the metallic alloy in alkaline conditions at room temperature. Al and Zn metals and Al-Fe, Al-Ni, Cu-Sn, Cu-Zn and Al-Cu-Zn metallic alloys were tested as the reductants. The GC-MS and 1H NMR spectroscopy were used for analyzing the reaction mixtures, and aniline was detected as the single product of the reduction of mentioned 4-halogenoanilines. It was observed that the addition of the metal chelating agent is essentioal for the complete dehalogenation of halogenated anilines in buffered solutions. The possibility of lowering of aniline and Ni2+ content in the aqueous solution was tested using flocculation and extraction dehalogenation;halogenoanilines;chloroaniline;AOX;ICP-OES;liquid membranes;waste water

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