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Ferric chloride-clay complexation

Yen, T.F. Shue, F.-F. Wu, W.-H. Tzeng, D. Ferric chloride-clay complexation method removal of nitrogen-containing compounds from shale oil and related fossil fuels. Anal Chem. 1983, 457-466. [Pg.632]

Neutral Lewis bases were removed by contacting the acid- and base-free bitumen with ferric chloride/Attapulgus clay in a column system. Weakly adsorbed complexes were desorbed with 1,2-dichloroethane while strongly held complexes were desorbed with benzene and methanol. This procedure provided two neutral Lewis bases fractions for analysis. [Pg.133]

Separation Procedure. The petroleum asphaltenes were separated into five fractions acids, bases, neutral nitrogen compounds, saturate hydrocarbons, and aromatic hydrocarbons. Acids were isolated using anion-exchange resin, bases with cation-exchange resin, and neutral nitrogen compounds by complexation with ferric chloride adsorbed on Attapulgus clay. The remaining hydrocarbon fraction is separated on silica gel to produce saturate and aromatic hydrocarbon fractions. [Pg.130]

See other pages where Ferric chloride-clay complexation is mentioned: [Pg.391]    [Pg.458]    [Pg.458]    [Pg.460]    [Pg.462]    [Pg.464]    [Pg.466]    [Pg.391]    [Pg.458]    [Pg.458]    [Pg.460]    [Pg.462]    [Pg.464]    [Pg.466]    [Pg.133]    [Pg.131]    [Pg.166]    [Pg.1022]   


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Chloride complex

Clays complexants

Ferric chloride

Ferric complex

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