Model bileşikler kullanılarak, linyitlerden oluşturulan hümik asitlerin yapılarının incelenmesi

Abstract

ABSTRACT In this work, by using various model compounds, the investigation of structural parameters of humic acids obtained from lignite. Quinones (p-benzoquinone, o-benzoquinone, o-toluquinone, 1, 4- naphthoquinone, 9, IQ-anthraquinone, 9, 10-phenanthraquinone) polyhydroxyaromatlc compounds CI, 2-dihydroxy benzene, 1,4-di- hydroxy benzene, 1,2,3-tri hydroxy benzene) compounds and hydroquinone-f ormaldehyde resin-~were used as model compounds. It was concluded that o- and p- phenolic structures in lig-nite were easily oxidized with air into quinonoid structur es and the quinonoid the structures in lignite form into humic acids. The structures of humic acids obtained from lignite and model compounds were compared by using UV-visible, IR-spectra and functional group analysis. Consequently, it was observed that the humic acid obtained from lignite was similar to quinone-humic acids.