Aktyvinto aliuminio oksido taikymas adsorbcijai ir katalizei

Aktyvuotas aliuminio oksidas turi didelį specifinį paviršiaus plotą, įvairias porų struktūras ir porų dydžio pasiskirstymą bei turtingas paviršiaus savybes. Todėl jis plačiai naudojamas adsorbentuose, katalizatoriuose ir katalizatorių laikikliuose.

Alumina for adsorbent and catalyst carrier is a fine chemical and also a special chemical. Different uses have different requirements on the physical structure, which is the reason for its strong speciality and many varieties and brands. According to statistics, the amount of alumina used as catalyst and carrier is more than the total amount of catalyst used in molecular sieve, silica gel, activated carbon, diatomaceous earth and silica-alumina. It can be seen that alumina plays a pivotal role in catalysts and supports. Among them, η-Al2O3 and γ-Al2O3 are the most important catalysts and supports. They are both spinel structures with defects. The difference between the two is: The regularity is different (γ>η) and the Al-O bond distance is different (η>, skirtumas yra 0.05-0.1nm).