What are the properties of alumina, and why is it suitable as a carrier?
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What are the properties of alumina, and why is it suitable as a carrier?
This post was last edited by ylb913 on 2018-7-16 at 21:04. As for dry sulfur, the catalyst used for sulfur conversion is γ-Al2O3, which is active alumina. Magnetic ball sulfur is also used; it is known as inert alumina. Active alumina is generally obtained by heating and dehydrating aluminum hydroxide. Aluminum hydroxide, also known as hydrated aluminum oxide, has the chemical composition Al2O3·nH2O. It can generally be divided into aluminum trihydrate and aluminum monohydrate depending on the number of crystal waters it contains. γ-Al2O3 can be obtained by heating and dehydrating aluminum hydroxide. That is, what is commonly referred to as activated alumina.
Firstly, alumina has a porous structure; secondly, γ-Al2O3 is acidic, that is, it possesses B-acidity (the ability to donate protons) and L-acidity (the ability to accept electrons). One can take a look at catalytic chemistry
Does aluminum oxide, as a catalyst carrier, have acidity?