The catalytic composition is made from an alumina sol that is prepared by dispersing a hydrated alumina in an aqueous medium.
The second hydrated alumina can be derived from high purity aluminum, such as via conversion to an alkoxide.
The method includes using a low density, small size particulate hydrated alumina, such as aluminum hydroxide, in place of aluminum alkoxides and other more costly reagents.
The binder may be colloidal silica sol, sodium silicate, sodium di-silicate, hydrated alumina, starch, sucrose, or a combination thereof.
The modified hydrated alumina is prepared with activated alumina powder, which activated alumina powder has been treated with excess water, cured, calcined and grinded into a powder.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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