Precipitation of aluminium hydroxide in the presence of surfactant and its effect on the surface acidity |
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| Authors: | E A Paukshtis J Ro?ek and K Jirátová |
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| Institution: | (1) Institute of Catalysis, Siberian Branch of Academy of Sicences of the USSR, 630 090 Novosibirsk;(2) Institute of Chemical Process Fundamentals, Czechoslovak Academy of Sciences, 165 02 Prague 6-Suchdol, Czechoslovakia |
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| Abstract: | Surface acidity of aluminas prepared by precipitation from sodium aluminate solutions and nitric acid with and without surfactant were determined by IR spectroscopy. It was found that the amounts of aprotic acidic sites increase with increasing pH of precipitation and with increasing concentration of surfactant used in the course of precipitation and washing of the precipitate.
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