Selective extraction and separation of textile anionic dyes from aqueous solution by tetrabutyl ammonium bromide
作者： G. Muthuraman , K. Palanivelu
DOI: 10.1016/J.DYEPIG.2004.05.014
关键词:
摘要: Abstract Tetrabutyl ammonium bromide (TBAB) has been demonstrated to be a very effective reagent for selective extraction of anionic dyes from aqueous solution. The solution TBAB in methylene chloride is able extract 98% 50 mg L −1 concentration dye distribution ratio reasonably high ( D = 49.0) even the presence excess and sulphate ions. Extracted organic phase can back extracted with salicylic acid sodium carbonate After acid–sodium stripping water washing, layer becomes regenerated it recycled further extraction. stripped on acidification precipitated recovered.
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