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- W2075836920 abstract "Abstract The surface properties of resin-free and resin-containing magnesia, magnesia lithia and magnesia alumina gels were investigated by nitrogen adsorption at - 195 °C. The addition of the resin during precipitation led to an increase in the surface area and in the pore volume of the gels. The highest surface areas were obtained in magnesia alumina followed by magnesia and magnesia lithia. This indicates that the presence of higher valency ions enhances the increase in the surface area caused by the addition of resin during the precipitation. A sharp increase in the surface area of the resin-free gels was observed after thermal treatment at 450 °C. This increase may be due to perforation of the gel during the dehydration process. In contrast, resin-containing samples exhibited a decrease in the surface area that can be attributed to the strengthening of the skeletal walls of the gels by addition of resin during the precipitation so that they were able to withstand perforation effects due to the dehydration process. A pronounced decrease in the surface area was observed when aluminium was present in the gel." @default.
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- W2075836920 date "1981-05-01" @default.
- W2075836920 modified "2023-09-25" @default.
- W2075836920 title "Effect of the addition of water-soluble resin to magnesia, magnesia lithia and magnesia alumina gels" @default.
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- W2075836920 doi "https://doi.org/10.1016/0376-4583(81)90067-4" @default.
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