Process of preparing high-porosity silica xerogels using alkanolamines
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United States of America Patent
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Dec 14, 1993
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app pub date -
Oct 14, 1992
filing date -
Oct 17, 1991
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Abstract
The invention relates to high-porosity silica xerogels and a process for their preparation consisting of subjecting silica alcogels to thermal treatment in the presence of organic compounds containing amino and hydroxyl groups. The xerogels are characterised by a total pore volume .gtoreq.2 cc/g and a mean pore diameter .gtoreq.100 .ANG..
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